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1. Architectures and Key Technical Challenges for 5G Systems Incorporating Satellites

Author

Guidotti, A., Vanelli-Coralli, A., Conti, M., Andrenacci, S., Chatzinotas, S., Maturo, N., Evans, B., Awoseyila, A., Ugolini, A., Foggi, T., Gaudio, L., Alagha, N., and Cioni, S.

Subjects
Computer Science - Networking and Internet Architecture
Abstract

Satellite Communication systems are a promising solution to extend and complement terrestrial networks in unserved or under-served areas. This aspect is reflected by recent commercial and standardisation endeavours. In particular, 3GPP recently initiated a Study Item for New Radio-based, i.e., 5G, Non-Terrestrial Networks aimed at deploying satellite systems either as a stand-alone solution or as an integration to terrestrial networks in mobile broadband and machine-type communication scenarios. However, typical satellite channel impairments, as large path losses, delays, and Doppler shifts, pose severe challenges to the realisation of a satellite-based NR network. In this paper, based on the architecture options currently being discussed in the standardisation fora, we discuss and assess the impact of the satellite channel characteristics on the physical and Medium Access Control layers, both in terms of transmitted waveforms and procedures for enhanced Mobile BroadBand (eMBB) and NarrowBand-Internet of Things (NB-IoT) applications. The proposed analysis shows that the main technical challenges are related to the PHY/MAC procedures, in particular Random Access (RA), Timing Advance (TA), and Hybrid Automatic Repeat reQuest (HARQ) and, depending on the considered service and architecture, different solutions are proposed., Comment: Submitted to Transactions on Vehicular Technologies, April 2018

Published
2018

2. LTE-based Satellite Communications in LEO Mega-Constellations

Author

Guidotti, A., Vanelli-Coralli, A., Foggi, T., Colavolpe, G., Caus, M., Bas, J., Cioni, S., and Modenini, A.

Subjects
Computer Science - Networking and Internet Architecture
Abstract

The integration of satellite and terrestrial networks is a promising solution for extending broadband coverage to areas not connected to a terrestrial infrastructure, as also demonstrated by recent commercial and standardisation endeavours. However, the large delays and Doppler shifts over the satellite channel pose severe technical challenges to traditional terrestrial systems, as LTE or 5G. In this paper, two architectures are proposed for a LEO mega-constellation realising a satellite-enabled LTE system, in which the on- ground LTE entity is either an eNB (Sat-eNB) or a Relay Node (Sat-RN). The impact of satellite channel impairments as large delays and Doppler shifts on LTE PHY/MAC procedures is discussed and assessed. The proposed analysis shows that, while carrier spacings, Random Access, and RN attach procedures do not pose specific issues, HARQ requires substantial modifications. Moreover, advanced handover procedures will be also required due to the satellites' movement., Comment: Submitted to IJSCN Special Issue on SatNEx IV

Published
2017

4. Modulation Techniques

Author

Mathiopoulos, P. T., Albertazzi, G., Bithas, P., Cioni, S., Corazza, G. E., Duverdier, A., Javornik, T., Morosi, S., Neri, M., Papaharalabos, S., Ribes, A., Sagias, N. C., Gallager, Robert, editor, Wolf, Jack Keil, editor, and Corazza, Giovanni, editor

Published
2007
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5. Parameter Estimation and Synchronization

Author

Mosquera, C., Boucheret, M. -L., Bousquet, M., Cioni, S., Gappmair, W., Pedone, R., Scalise, S., Skoutaridis, P., Villanti, M., Gallager, Robert, editor, Wolf, Jack Keil, editor, and Corazza, Giovanni, editor

Published
2007
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6. Diversity Techniques and Fade Mitigation

Author

Karagiannidis, G. K., Bousquet, M., Caini, C., Castanet, L., Vázquez Castro, M. A., Cioni, S., Frigyes, I., Horvath, P., Javornik, T., Kandus, G., Luglio, M., Salmi, P., Zogas, D. A., Gallager, Robert, editor, Wolf, Jack Keil, editor, and Corazza, Giovanni, editor

Published
2007
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8. Carotid artery stenting during endovascular thrombectomy for acute ischemic stroke with tandem occlusion: the Italian Registry of Endovascular Treatment in Acute Stroke

Author

Sallustio, Fabrizio, Pracucci, Giovanni, Cappellari, Manuel, Saia, Valentina, Mascolo, Alfredo Paolo, Marrama, Federico, Gandini, Roberto, Koch, Giacomo, Diomedi, Marina, D’Agostino, Federica, Rocco, Alessandro, Da Ros, Valerio, Wlderk, Andrea, Nezzo, Marco, Argirò, Renato, Morosetti, Daniele, Renieri, Leonardo, Nencini, Patrizia, Vallone, Stefano, Zini, Andrea, Bigliardi, Guido, Pitrone, Antonio, Grillo, Francesco, Bracco, Sandra, Tassi, Rossana, Bergui, Mauro, Naldi, Andrea, Carità, Giuseppe, Casetta, Ilaria, Gasparotti, Roberto, Magoni, Mauro, Simonetti, Luigi, Haznedari, Nicolò, Paolucci, Matteo, Mavilio, Nicola, Malfatto, Laura, Menozzi, Roberto, Genovese, Antonio, Cosottini, Mirco, Orlandi, Giovanni, Comai, Alessio, Franchini, Enrica, Pedicelli, Alessandro, Frisullo, Giovanni, Puglielli, Edoardo, Casalena, Alfonsina, Cester, Giacomo, Baracchini, Claudio, Castellano, Davide, Di Liberto, Alessandra, Ricciardi, Giuseppe Kenneth, Chiumarulo, Luigi, Petruzzellis, Marco, Lafe, Elvis, Persico, Alessandra, Cavasin, Nicola, Critelli, Adriana, Semeraro, Vittorio, Tinelli, Angelica, Giorgianni, Andrea, Carimati, Federico, Auteri, William, Rizzuto, Stefano, Biraschi, Francesco, Nicolini, Ettore, Ferrari, Antonio, Melis, Maurizio, Calia, Stefano, Tassinari, Tiziana, Nuzzi, Nunzio Paolo, Corato, Manuel, Sacco, Simona, Squassina, Guido, Invernizzi, Paolo, Gallesio, Ivan, Ruiz, Luigi, Dui, Giovanni, Carboni, Nicola, Amistà, Pietro, Russo, Monia, Maiore, Mario, Zanda, Bastianina, Craparo, Giuseppe, Mannino, Marina, Inzitari, Domenico, Toni, Danilo, Mangiafico, Salvatore, Gasparotti, R., Inzitari, D., Mangiafico, S., Toni, D., Vallone, S., Zini, A., Bergui, M., Causin, F., Ciccone, A., Nencini, P., Saletti, A., Sallustio, F., Tassi, R., Thyrion, F. Zappoli, Pracucci, G., Saia, V., Gandini, R., Da Ros, V., Greco, L., Morosetti, D., Diomedi, M., Nappini, S., Limbucci, N., Renieri, L., Fainardi, E., Verganti, L., Sacchetti, F., Zelent, G., Bigliardi, G., Dell’Acqua, M. L., Picchetto, L., Vandelli, L., Pentore, R., Maffei, S., Nichelli, P., Longo, M., Pitrone, A., Vinci, S. L., Velo, M., Caragliano, A., Tessitore, A., Bonomo, O., Musolino, R., La Spina, P., Casella, C., Fazio, M. C., Grillo, F., Cotroneo, M., Dell’Aera, C., Francalanza, I., Bracco, S., Cioni, S., Gennari, P., Vallone, I. M., Cerase, A., Martini, G., Stura, G., Daniele, D., Cerrato, P., Naldi, A., Onofrio, M., De Vito, A., Azzini, C., Casetta, I., Mardighian, D., Frigerio, M., Magoni, M., Costa, A., Simonetti, L., Cirillo, L., Taglialatela, F., Isceri, S., Princiotta, C., Dall’Olio, M., Cellerini, M., Gentile, M., Piccolo, L., Migliaccio, L., Brancaleoni, L., Naldi, F., Romoli, M., Zaniboni, A., Ruggiero, M., Sanna, A., Haznedari, N., Commodaro, C., Longoni, M., Biguzzi, S., Cordici, F., Malatesta, E., Castellan, L., Mavilio, N., Salsano, G., Malfatto, L., Finocchi, C., Menozzi, R., Piazza, P., Epifani, E., Andreone, A., Scoditti, U., Castellini, P., Latte, L., Grisendi, I., Cosottini, M., Puglioli, M., Lazzarotti, G., Lauretti, D., Mancuso, M., Giannini, N., Maccarone, M., Orlandi, G., Comai, A., Bonatti, G., Nano, G., Ferro, F., Bonatti, M., Dall’Ora, E., Dossi, R. Currò, Turri, E., Turri, M., Colosimo, C., Pedicelli, A., D’Argento, F., Alexandre, A., Frisullo, G., Di Egidio, V., Puglielli, E. G., Ruggero, L., Assetta, M., Casalena, A., Cester, G., Baracchini, C., Viaro, F., Pieroni, A., Vaudano, G., Comelli, C., Di Maggio, L., Castellano, D., Cavallo, R., Duc, E., Chianale, G., Ciceri, E. F. M., Plebani, M., Augelli, R., Zampieri, P., Grazioli, A., Cappellari, M., Forlivesi, S., Tomelleri, G., Micheletti, N., Chiumarulo, L., Zimatore, D. S., Federico, F., Petruzzelli, M., Zappoli, F., Lafe, E., Sanfilippo, G., Sgreccia, A., Martignoni, A., Cavallini, A., Denaro, F., Persico, A., Cagliari, E., Cavasin, N., Quatrale, R., Critelli, A., Burdi, N., Semeraro, V., Lucarelli, N., Ganimede, M. P., Internò, S., Tinelli, A., Prontera, M. P., Pesare, A., Cotroneo, E., Pampana, E., Ricciardi, F., Gigli, R., Pezzella, F. R., Corsi, F., Giorgianni, A., Baruzzi, F., Pellegrino, C., Terrana, A., Versino, M., Delodovici, M. L., Carimati, F., Cariddi, L. Princiotta, Auteri, W., Di Benedetto, O., Silvagni, U., Perrotta, P., Crispino, E., Petrone, A., Stancati, F., Rizzuto, S., Pugliese, P., Pisani, E., Siniscalchi, A., Gaudiano, C., Pirritano, D., Del Giudice, F., Piano, M., Agostoni, E., Motto, C., Gatti, A., Guccione, A., Tortorella, R., Stecco, A., Guzzardi, G., Del Sette, B., Coppo, L., Baldan, J., Romano, D., Siani, A., Locatelli, G., Saponiero, R., Napolitano, R., De Gregorio, M., Volpe, G., Tenuta, M., Guidetti, G., Biraschi, F., Wulbek, A., Falcou, A., Anzini, A., Mancini, A., De Michele, M., Fausti, S., Di Mascio, M. T., Durastanti, L., Sbardella, E., Mellina, V., Nicolini, E., Comelli, S., Ganau, C., Corraine, S., Fusaro, F., Ferrari, A., Schirru, F., Ledda, V., Secci, S., Melis, M., Piras, V., Moller, J., Padolecchia, R., Allegretti, L., Caldiera, V., Calia, S., Ganci, G., Tassinari, T., Sugo, A., De Nicola, M., Giannoni, M., Bruni, S., Gambelli, E., Provinciali, L., Nuzzi, N. P., Marcheselli, S., Corato, M., Scomazzoni, F., Simionato, F., Roveri, L., Filauri, P., Sacco, S., Orlandi, B., De Santis, F., Tiseo, C., Notturno, F., Ornello, R., Pavia, M., Squassina, G., Cobelli, M., Morassi, M., Magni, E., Invernizzi, P., Pepe, F., Bigni, B., Costa, P., Crabbio, M., Griffini, S., Palmerini, F., Piras, M. P., Gallesio, I., Barbero, S., Ferrandi, D., Dui, G., Fancello, M. C., Zedda, S., Ticca, A., Saddi, M. V., Deiana, G., Rossi, R., Carboni, N., Mela, A., Amistà, P., Russo, M., Iannucci, G., Pinna, V., Di Clemente, L., Santi, M., De Boni, A., De Luca, C., Natrella, M., Fanelli, G., Cristoferi, M., Bottacchi, E., Corso, G., Tosi, P., Sessa, M., Giossi, A., Baietti, Null, Romano, G., Meineri, P., Armentano, A., Versace, P., Arcudi, L., Galvano, G., Petralia, B., Feraco, P., Luppi, G., Giometto, B., Bignamini, V., Piffer, S., Meloni, G. B., Fabio, C., Maiore, M., Pintus, F., Pischedda, A., Manca, A., Mongili, C., Zanda, B., Baule, A., Florio, F., Ciccarese, G., Leone, M., Di Viesti, P., Pappalardo, M. P., Craparo, G., Gallo, C., Monaco, S., Mannino, M., Muto, M., Guarnieri, Gl., Andreone, V., Passalacqua, G., Allegritti, M., Caproni, S., Filizzolo, M., Salmaggi, A., Giordano, A., Marini, C., Frattale, I., Lucente, G., Nozzoli, C., and Lupo, F. A.

Subjects
Stent, Acute stroke, Settore MED/37 - Neuroradiologia, Acute stroke Internal carotid artery diseases Stent Thrombectomy, Neurology (clinical), General Medicine, Settore MED/26, Internal carotid artery diseases, Thrombectomy
Abstract

The management of tandem extracranial internal carotid artery and intracranial large vessel occlusion during endovascular thrombectomy (EVT) for acute ischemic stroke (AIS) has been under-investigated. We sought to investigate outcomes of AIS patients with tandem occlusion (TO) treated with carotid artery stenting (CAS) compared to those not treated with CAS (no-CAS) during EVT.We performed a cohort study using data from AIS patients enrolled in the Italian Registry of Endovascular Treatment in Acute Stroke. Outcomes were 3 months' mortality, functional outcome, complete and successful recanalization, any intracranial hemorrhage, parenchymal hematoma and symptomatic intracerebral hemorrhage.Among 466 AIS patients with TO, CAS patients were 122 and no-CAS patients were 226 (118 excluded). After adjustment for unbalanced variables, CAS was associated with a lower rate of 3 months' mortality (OR 0.407, 95% CI 0.171-0.969, p = 0.042). After adjustment for pre-defined variables, CAS was associated with a lower rate of 3 months' mortality (aOR 0.430, 95% CI 0.187-0.989, p = 0.047) and a higher rate of complete recanalization (aOR 1.986, 95% CI 1.121-3.518, p = 0.019), successful recanalization (aOR 2.433, 95% CI 1.263-4.686, p = 0.008) and parenchymal hematoma (aOR 2.876, 95% CI 1.173-7.050, p = 0.021). CAS was associated with lower 3 months mortality (OR 0.373, 95% CI 0.141-0.982, p = 0.046) and higher rates of successful recanalization (OR 2.082, 95% CI 1.099-3.942, p = 0.024) after adjustment for variables associated with 3 months' mortality and successful recanalization, respectively.Among AIS patients with TO, CAS during EVT was associated with a higher rate of successful reperfusion and a lower rate of 3 months' mortality.

Published
2022

12. FRED Italian Registry: a multicenter experience with the flow re-direction endoluminal device for intracranial aneurysms

Author

Piano, Mariangela, Valvassori, Luca, Lozupone, Emilio, Pero, Guglielmo, Quilici, Luca, Boccardi Edoardo, Bergui M, Stura G, Guidetti G, Peschillo S, Isalberti M, Paolucci A, Bracco S, Cioni S, De Nicola M, Giannoni M, Comelli S, Comelli C, Castellan L, Allegretti L, Menozzi R, Saltarelli A, Caputo N, Resta M, Donatelli M, Pedicelli A, Causin F, Cester G, Cagliari E, Cavasin N, Cagliari G, Petralia B, Gallesio I, Briganti F, Tortora F, Natrella M, Papa R, Pitrone A, Di Paola F, Thyrion F, Lafe E, Ciceri E, Faragò G, Remida P, Padolecchia R, DiVenuto I, Scomazzoni F, Simionato F, Mangiafico S, Limbucci N, Lazzarotti G., Piano, Mariangela, Valvassori, Luca, Lozupone, Emilio, Pero, Guglielmo, Quilici, Luca, Boccardi, Edoardo, Bergui, M, Stura, G, Guidetti, G, Peschillo, S, Isalberti, M, Paolucci, A, Bracco, S, Cioni, S, De Nicola, M, Giannoni, M, Comelli, S, Comelli, C, Castellan, L, Allegretti, L, Menozzi, R, Saltarelli, A, Caputo, N, Resta, M, Donatelli, M, Pedicelli, A, Causin, F, Cester, G, Cagliari, E, Cavasin, N, Cagliari, G, Petralia, B, Gallesio, I, Briganti, F, Tortora, F, Natrella, M, Papa, R, Pitrone, A, Di Paola, F, Thyrion, F, Lafe, E, Ciceri, E, Faragò, G, Remida, P, Padolecchia, R, Divenuto, I, Scomazzoni, F, Simionato, F, Mangiafico, S, Limbucci, N, and Lazzarotti, G.

Subjects
MCA = middle cerebral artery, medicine.medical_specialty, ICA = internal carotid artery, AE = adverse event, endovascular procedures, FRED, FDD = flow diverter device, vascular disorders, Asymptomatic, 03 medical and health sciences, 0302 clinical medicine, Aneurysm, DSA = digital subtraction angiography, Modified Rankin Scale, Complete occlusion, medicine, FRED = flow re-direction endoluminal device, Adverse effect, AsE = asymptomatic event, SAE = serious AE, BA = basilar artery, TIA = transient ischemic attack, GDC = Guglielmi detachable coil, VA = vertebral artery, medicine.diagnostic_test, PCoA = posterior communicating artery, business.industry, endovascular procedure, Mortality rate, AChA = anterior choroidal artery, General Medicine, ICH = intracerebral hemorrhage, OKM = O’Kelly-Marotta, PICA = posterior inferior cerebellar artery, RROC = Raymond-Roy occlusion classification, SAH = subarachnoid hemorrhage, interventional neurosurgery, intracranial aneurysm, mRS = modified Rankin Scale, new device, medicine.disease, Surgery, 030220 oncology & carcinogenesis, Sac shrinkage, Angiography, medicine.symptom, business, 030217 neurology & neurosurgery
Abstract

OBJECTIVEThe introduction of flow-diverter devices (FDDs) has revolutionized the endovascular treatment of intracranial aneurysms. Here the authors present their Italian multicenter experience using the flow re-direction endoluminal device (FRED) in the treatment of cerebral aneurysms, evaluating both short- and long-term safety and efficacy of this device.METHODSBetween February 2013 and December 2014, 169 consecutive aneurysms treated using FRED in 166 patients were entered into this study across 30 Italian centers. Data collected included patient demographics, aneurysm location and characteristics, baseline angiography, adverse event and serious adverse event information, morbidity and mortality rates, and pre- and posttreatment modified Rankin Scale scores, as well as angiographic and cross-sectional CT/MRI follow-up at 3–6 months and/or 12–24 months per institutional standard of care. All images were reviewed and adjudicated by an independent core lab.RESULTSOf the 169 lesions initially entered into the study, 4 were later determined to be extracranial or nonaneurysmal by the core lab and were excluded, leaving 165 aneurysms in 162 patients treated in 163 procedures. Ninety-one (56.2%) patients were asymptomatic with aneurysms found incidentally. Of the 165 aneurysms, 150 (90.9%) were unruptured. One hundred thirty-four (81.2%) were saccular, 27 (16.4%) were fusiform/dissecting, and the remaining 4 (2.4%) were blister-like. One hundred thirty-seven (83.0%) arose from the anterior circulation.FRED deployment was impossible in 2/163 (1.2%) cases, and in an additional 4 cases (2.5%) the device was misdeployed. Overall mortality and morbidity rates were 4.3% and 7.3%, respectively, with rates of mortality and morbidity potentially related to FRED of up to 2.4% and 6.2%, respectively. Neuroimaging follow-up at 3–6 months showed complete or nearly complete occlusion of the aneurysm in 94% of cases, increasing to 96% at 12–24 months’ follow-up. Aneurysmal sac shrinkage was observed in 78% of assessable aneurysms.CONCLUSIONSThis preliminary experience using FRED for endovascular treatment of complex unruptured and ruptured aneurysms showed a high safety and efficacy profile that is comparable to those of other FDDs currently in use.

Published
2020

13. The Large Magellanic Cloud stellar content with SMASH

Author

T. Ruiz-Lara, C. Gallart, M. Monelli, D. Nidever, A. Dorta, Y. Choi, K. Olsen, G. Besla, E. J. Bernard, S. Cassisi, P. Massana, N. E. D. Noël, I. Pérez, V. Rusakov, M.-R. L. Cioni, S. R. Majewski, R. P. van der Marel, D. Martínez-Delgado, A. Monachesi, L. Monteagudo, R. R. Muñoz, G. S. Stringfellow, F. Surot, A. K. Vivas, A. R. Walker, D. Zaritsky

Published
2020
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14. Functional and radiological outcomes after bridging therapy versus direct thrombectomy in stroke patients with unknown onset

Author

Cappellari, M., primary, Saia, V., additional, Pracucci, G., additional, Sallustio, F., additional, Gandini, R., additional, Nappini, S., additional, Nencini, P., additional, Vallone, S., additional, Zini, A., additional, Bigliardi, G., additional, Granata, F., additional, Grillo, F., additional, Cioni, S., additional, Tassi, R., additional, Bergui, M., additional, Cerrato, P., additional, Saletti, A., additional, De Vito, A., additional, Gasparotti, R., additional, Magoni, M., additional, Taglialatela, F., additional, Ruggiero, M., additional, Longoni, M., additional, Castellan, L., additional, Malfatto, L., additional, Menozzi, R., additional, Castellini, P., additional, Cosottini, M., additional, Mancuso, M., additional, Comai, A., additional, Franchini, E., additional, Lozupone, E., additional, Della Marca, G., additional, Ciceri, E. F. M., additional, Bonetti, B., additional, Zampieri, P., additional, Inzitari, D., additional, Mangiafico, S., additional, and Toni, D., additional

Published
2020
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15. IER-SICH Nomogram to Predict Symptomatic Intracerebral Hemorrhage After Thrombectomy for Stroke

Author

Cappellari, M., Mangiafico, S., Saia, V., Pracucci, G., Nappini, S., Nencini, P., Konda, D., Sallustio, F., Vallone, S., Zini, A., Bracco, S., Tassi, R., Bergui, M., Cerrato, P., Pitrone, A., Grillo, F., Saletti, A., De Vito, A., Gasparotti, Roberto, Magoni, M., Puglielli, E., Casalena, A., Causin, F., Baracchini, C., Castellan, L., Malfatto, L., Menozzi, R., Scoditti, U., Comelli, C., Duc, E., Comai, A., Franchini, E., Cosottini, M., Mancuso, M., Peschillo, S., De Michele, M., Giorgianni, A., Delodovici, M. L., Lafe, E., Denaro, M. F., Burdi, N., Interno, S., Cavasin, N., Critelli, A., Chiumarulo, L., Petruzzellis, M., Doddi, M., Carolei, A., Auteri, W., Petrone, A., Padolecchia, R., Tassinari, T., Pavia, M., Invernizzi, P., Turcato, G., Forlivesi, S., Ciceri, E. F. M., Bonetti, B., Inzitari, D., Toni D., Limbucci N, Consoli, A, Renieri, L, Fainardi, E, Gandini, R, Pampana, E, Diomedi, M, Koch, G, Verganti, L, Sacchetti, F, Zelent, G, Bigliardi, G, Picchetto, L, Vandelli, L, Romano, Dg, Cioni, S, Gennari, P, Cerase, A, Martini, G, Stura, G, Daniele, D, Naldi, A, Papa, R, Vinci, Sl, Bernava, G, Velo, M, Caragliano, A, Tessitore, A, Buonomo, O, Musolino, R, La Spina, P, Casella, C, Carolina Fazio, M, Cotroneo, M, Onofrio, M, Azzini, C, Casetta, I, Mardighian, D, Frigerio, M, Costa, A, Di Egidio, V, Lattanzi, R, Assetta, M, Cester, G, Mavilio, N, Serrati, C, Piazza, P, Epifani, E, Andreone, A, Castellini, P, Latte, L, Grisendi, I, Vaudano, G, Comelli, S, Cavallo, R, Chianale, G, Simonetti, L, Taglialatela, F, Isceri, S, Procaccianti, G, Zaniboni, A, Borghi, A, Bonatti, G, Ferro, F, Bonatti, M, Dall'Ora, E, Currò Dossi, R, Turri, E, Turri, M, Puglioli, M, Lazzarotti, G, Lauretti, D, Giannini, N, Maccarone, M, Orlandi, G, Chiti, A, Guidetti, G, Biraschi, F, Falcou, A, Anzini, A, Mancini, A, Fausti, S, Di Mascio, Mt, Durastanti, L, Sbardella, E, Mellina, V, Baruzzi, F, Pellegrino, C, Terrana, A, Carimati, F, Ruggiero, M, Sanna, A, Passarin, Mg, Colosimo, C, Pedicelli, A, D'Argento, F, Alexandre, A, Frisullo, G, Zappoli, F, Martignoni, A, Cavallini, A, Persico, A, Valvassori, L, Piano, M, Agostoni, E, Motto, C, Gatti, A, Longoni, M, Guccione, A, Tortorella, R, Zampieri, P, Zimatore, D, Grazioli, A, Ricciardi, Gk, Augelli, R, Bovi, P, Tomelleri, G, Micheletti, N, Semeraro, V, Lucarelli, N, Ganimede, M, Tinelli, A, Pia Prontera, M, Pesare, A, Cagliari, E, Quatrale, R, Federico, F, Passalacqua, G, Filauri, P, Orlandi, B, De Santis, F, Gabriele, A, Tiseo, C, Armentano, A, Di Benedetto, O, Silvagni, U, Perrotta, P, Crispino, E, Stancati, F, Rizzuto, S, Pugliese, P, Pisani, E, Siniscalchi, A, Gaudiano, C, Pirritano, D, Del Giudice, F, Calia, S, Ganci, G, Sugo, A, Scomazzoni, F, Simionato, F, Roveri, L, De Nicola, M, Giannoni, M, Bruni, S, Gambelli, E, Provinciali, L, Carriero, A, Coppo, L, Baldan, J, Paolo Nuzzi, N, Marcheselli, S, Corato, M, Cotroneo, E, Ricciardi, F, Gigli, R, Pozzessere, C, Pezzella, Fr, Corsi, F, Squassina, G, Cobelli, M, Morassi, M, Magni, Eugenio, Pepe, F, Bigni, B, Costa, P, Crabbio, M, Griffini, S, Palmerini, F, Piras, Mp, Natrella, M, Fanelli, G, Cristoferi, M, Bottacchi, E, Corso, G, Tosi, P, Amistà, P, Russo, M, Tettoni, S, Gallesio, I, Mascolo, Mc, Meloni, Gb, Fabio, C, Maiore, M, Pintus, F, Pischedda, A, Manca, A, Mongili, C, Zanda, B, Baule, A, Pappalardo, Mp, Craparo, G, Gallo, C, Monaco, S, Mannino, M, Terruso, V, Muto, M, Guarnieri, G, Andreone, V, Dui, G, Ticca, A, Salmaggi, A, Iannucci, G, Pinna, V, Di Clemente, L, Perini, F, De Boni, A, De Luca, C, De Giorgi, F, Corraine, S, Enne, P, Ganau, C, Piras, V., Gasparotti R., Magni E (ORCID:0000-0002-2235-2280), Cappellari, M., Mangiafico, S., Saia, V., Pracucci, G., Nappini, S., Nencini, P., Konda, D., Sallustio, F., Vallone, S., Zini, A., Bracco, S., Tassi, R., Bergui, M., Cerrato, P., Pitrone, A., Grillo, F., Saletti, A., De Vito, A., Gasparotti, Roberto, Magoni, M., Puglielli, E., Casalena, A., Causin, F., Baracchini, C., Castellan, L., Malfatto, L., Menozzi, R., Scoditti, U., Comelli, C., Duc, E., Comai, A., Franchini, E., Cosottini, M., Mancuso, M., Peschillo, S., De Michele, M., Giorgianni, A., Delodovici, M. L., Lafe, E., Denaro, M. F., Burdi, N., Interno, S., Cavasin, N., Critelli, A., Chiumarulo, L., Petruzzellis, M., Doddi, M., Carolei, A., Auteri, W., Petrone, A., Padolecchia, R., Tassinari, T., Pavia, M., Invernizzi, P., Turcato, G., Forlivesi, S., Ciceri, E. F. M., Bonetti, B., Inzitari, D., Toni D., Limbucci N, Consoli, A, Renieri, L, Fainardi, E, Gandini, R, Pampana, E, Diomedi, M, Koch, G, Verganti, L, Sacchetti, F, Zelent, G, Bigliardi, G, Picchetto, L, Vandelli, L, Romano, Dg, Cioni, S, Gennari, P, Cerase, A, Martini, G, Stura, G, Daniele, D, Naldi, A, Papa, R, Vinci, Sl, Bernava, G, Velo, M, Caragliano, A, Tessitore, A, Buonomo, O, Musolino, R, La Spina, P, Casella, C, Carolina Fazio, M, Cotroneo, M, Onofrio, M, Azzini, C, Casetta, I, Mardighian, D, Frigerio, M, Costa, A, Di Egidio, V, Lattanzi, R, Assetta, M, Cester, G, Mavilio, N, Serrati, C, Piazza, P, Epifani, E, Andreone, A, Castellini, P, Latte, L, Grisendi, I, Vaudano, G, Comelli, S, Cavallo, R, Chianale, G, Simonetti, L, Taglialatela, F, Isceri, S, Procaccianti, G, Zaniboni, A, Borghi, A, Bonatti, G, Ferro, F, Bonatti, M, Dall'Ora, E, Currò Dossi, R, Turri, E, Turri, M, Puglioli, M, Lazzarotti, G, Lauretti, D, Giannini, N, Maccarone, M, Orlandi, G, Chiti, A, Guidetti, G, Biraschi, F, Falcou, A, Anzini, A, Mancini, A, Fausti, S, Di Mascio, Mt, Durastanti, L, Sbardella, E, Mellina, V, Baruzzi, F, Pellegrino, C, Terrana, A, Carimati, F, Ruggiero, M, Sanna, A, Passarin, Mg, Colosimo, C, Pedicelli, A, D'Argento, F, Alexandre, A, Frisullo, G, Zappoli, F, Martignoni, A, Cavallini, A, Persico, A, Valvassori, L, Piano, M, Agostoni, E, Motto, C, Gatti, A, Longoni, M, Guccione, A, Tortorella, R, Zampieri, P, Zimatore, D, Grazioli, A, Ricciardi, Gk, Augelli, R, Bovi, P, Tomelleri, G, Micheletti, N, Semeraro, V, Lucarelli, N, Ganimede, M, Tinelli, A, Pia Prontera, M, Pesare, A, Cagliari, E, Quatrale, R, Federico, F, Passalacqua, G, Filauri, P, Orlandi, B, De Santis, F, Gabriele, A, Tiseo, C, Armentano, A, Di Benedetto, O, Silvagni, U, Perrotta, P, Crispino, E, Stancati, F, Rizzuto, S, Pugliese, P, Pisani, E, Siniscalchi, A, Gaudiano, C, Pirritano, D, Del Giudice, F, Calia, S, Ganci, G, Sugo, A, Scomazzoni, F, Simionato, F, Roveri, L, De Nicola, M, Giannoni, M, Bruni, S, Gambelli, E, Provinciali, L, Carriero, A, Coppo, L, Baldan, J, Paolo Nuzzi, N, Marcheselli, S, Corato, M, Cotroneo, E, Ricciardi, F, Gigli, R, Pozzessere, C, Pezzella, Fr, Corsi, F, Squassina, G, Cobelli, M, Morassi, M, Magni, Eugenio, Pepe, F, Bigni, B, Costa, P, Crabbio, M, Griffini, S, Palmerini, F, Piras, Mp, Natrella, M, Fanelli, G, Cristoferi, M, Bottacchi, E, Corso, G, Tosi, P, Amistà, P, Russo, M, Tettoni, S, Gallesio, I, Mascolo, Mc, Meloni, Gb, Fabio, C, Maiore, M, Pintus, F, Pischedda, A, Manca, A, Mongili, C, Zanda, B, Baule, A, Pappalardo, Mp, Craparo, G, Gallo, C, Monaco, S, Mannino, M, Terruso, V, Muto, M, Guarnieri, G, Andreone, V, Dui, G, Ticca, A, Salmaggi, A, Iannucci, G, Pinna, V, Di Clemente, L, Perini, F, De Boni, A, De Luca, C, De Giorgi, F, Corraine, S, Enne, P, Ganau, C, Piras, V., Gasparotti R., and Magni E (ORCID:0000-0002-2235-2280)

Abstract

Background and Purpose - As a reliable scoring system to detect the risk of symptomatic intracerebral hemorrhage after thrombectomy for ischemic stroke is not yet available, we developed a nomogram for predicting symptomatic intracerebral hemorrhage in patients with large vessel occlusion in the anterior circulation who received bridging of thrombectomy with intravenous thrombolysis (training set), and to validate the model by using a cohort of patients treated with direct thrombectomy (test set). Methods - We conducted a cohort study on prospectively collected data from 3714 patients enrolled in the IER (Italian Registry of Endovascular Stroke Treatment in Acute Stroke). Symptomatic intracerebral hemorrhage was defined as any type of intracerebral hemorrhage with increase of ≥4 National Institutes of Health Stroke Scale score points from baseline ≤24 hours or death. Based on multivariate logistic models, the nomogram was generated. We assessed the discriminative performance by using the area under the receiver operating characteristic curve. Results - National Institutes of Health Stroke Scale score, onset-to-end procedure time, age, unsuccessful recanalization, and Careggi collateral score composed the IER-SICH nomogram. After removing Careggi collateral score from the first model, a second model including Alberta Stroke Program Early CT Score was developed. The area under the receiver operating characteristic curve of the IER-SICH nomogram was 0.778 in the training set (n=492) and 0.709 in the test set (n=399). The area under the receiver operating characteristic curve of the second model was 0.733 in the training set (n=988) and 0.685 in the test set (n=779). Conclusions - The IER-SICH nomogram is the first model developed and validated for predicting symptomatic intracerebral hemorrhage after thrombectomy. It may provide indications on early identification of patients for more or less postprocedural intensive management.

Published
2019

17. Architectures and Key Technical Challenges for 5G Systems Incorporating Satellites

Author

Giudotti, A., Vanelli-Coralli, A., Conti, M., Andrenacci, Stefano, Chatzinotas, Symeon, Maturo, Nicola, Evans, B., Awoseyila, A., Ugolini, T., Foggi, L., Gaudio, N., Alagha, N., Cioni, S., Giudotti, A., Vanelli-Coralli, A., Conti, M., Andrenacci, Stefano, Chatzinotas, Symeon, Maturo, Nicola, Evans, B., Awoseyila, A., Ugolini, T., Foggi, L., Gaudio, N., Alagha, N., and Cioni, S.

Abstract

Satellite Communication systems are a promising solution to extend and complement terrestrial networks in unserved or under-served areas. This aspect is reflected by recent commercial and standardisation endeavours. In particular, 3GPP recently initiated a Study Item for New Radio-based, i.e., 5G, Non-Terrestrial Networks aimed at deploying satellite systems either as a stand-alone solution or as an integration to terrestrial networks in mobile broadband and machine-type communication scenarios. However, typical satellite channel impairments, as large path losses, delays, and Doppler shifts, pose severe challenges to the realisation of a satellite-based NR network. In this paper, based on the architecture options currently being discussed in the standardisation fora, we discuss and assess the impact of the satellite channel characteristics on the physical and Medium Access Control layers, both in terms of transmitted waveforms and procedures for enhanced Mobile BroadBand (eMBB) and NarrowBand-Internet of Things (NB-IoT) applications. The proposed analysis shows that the main technical challenges are related to the PHY/MAC procedures, in particular Random Access (RA), Timing Advance (TA), and Hybrid Automatic Repeat reQuest (HARQ) and, depending on the considered service and architecture, different solutions are proposed.

Published
2018

18. Functional and radiological outcomes after bridging therapy versus direct thrombectomy in stroke patients with unknown onset: Bridging therapy versus direct thrombectomy in unknown onset stroke patients with 10‐point ASPECTS.

Author

Cappellari, M., Saia, V., Pracucci, G., Sallustio, F., Gandini, R., Nappini, S., Nencini, P., Vallone, S., Zini, A., Bigliardi, G., Granata, F., Grillo, F., Cioni, S., Tassi, R., Bergui, M., Cerrato, P., Saletti, A., De Vito, A., Gasparotti, R., and Magoni, M.

Subjects
THROMBECTOMY, STROKE patients, INTRACEREBRAL hematoma, ENDOVASCULAR surgery, CEREBRAL hemorrhage, PROPENSITY score matching
Abstract

Background and purpose: The aim was to assess functional and radiological outcomes after bridging therapy (intravenous thrombolysis plus mechanical thrombectomy) versus direct mechanical thrombectomy (MT) in unknown onset stroke patients. Methods: A cohort study was conducted on prospectively collected data from unknown onset stroke patients who received endovascular procedures at ≤6 h from symptom recognition or awakening time. Results: Of the 349 patients with a 10‐point Alberta Stroke Program Early Computed Tomography Score (ASPECTS), 248 received bridging and 101 received direct MT. Of the 134 patients with 6–9‐point ASPECTS, 123 received bridging and 111 received direct MT. Each patient treated with bridging was propensity score matched with a patient treated with direct MT for age, sex, study period, pre‐stroke disability, stroke severity, type of stroke onset, symptom recognition to groin time (or awakening to groin time), ASPECTS and procedure time. In the two matched groups with 10‐point ASPECTS (n = 73 vs. n = 73), bridging was associated with higher rates of excellent outcome (46.6% vs. 28.8%; odds ratio 2.302, 95% confidence interval 1.010–5.244) and successful recanalization (83.6% vs. 63%; odds ratio 3.028, 95% confidence interval 1.369–6.693) compared with direct MT; no significant association was found between bridging and direct MT with regard to rate of symptomatic intracerebral hemorrhage (0% vs. 1.4%). In the two matched groups with 6–9‐point ASPECTS (n = 45 vs. n = 45), no significant associations were found between bridging and direct MT with regard to rates of excellent functional outcome (44.4% vs. 31.1%), successful recanalization (73.3% vs. 76.5%) and symptomatic intracerebral hemorrhage (0% vs. 0%). Conclusions: Bridging at ≤ 6 h of symptom recognition or awakening time was associated with better functional and radiological outcomes in unknown onset stroke patients with 10‐point ASPECTS. [ABSTRACT FROM AUTHOR]

Published
2021
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21. Network-coded diversity protocol for collision recovery in slotted ALOHA networks

Author

Cocco, G, Alagha, N, Ibars, C, and Cioni, S

Subjects
MAC, collision resolution, Computer Science::Networking and Internet Architecture, PNC, multiple access, physical layer network coding, slotted ALOHA
Abstract

We propose a collision recovery scheme for symbol-synchronous slotted ALOHA based on physical layer network coding over extended Galois fields. Information is extracted from colliding bursts allowing to achieve higher maximum throughput with respect to previously proposed collision recovery schemes. An energy efficiency analysis is also performed, and it is shown that by adjusting the transmission probability, high energy efficiency can be achieved. A performance evaluation is carried out using the proposed algorithms, revealing remarkable performance in terms of normalized throughput. Copyright (C) 2013 John Wiley & Sons, Ltd.

Published
2014

22. Future ground beamforming

Author

Gallinaro, G., primary, Cioni, S., additional, Vanin, F., additional, Vidal, O., additional, Huggins, G., additional, Gross, M., additional, Andrenacci, S., additional, Chatzinotas, S., additional, and Tirro, E., additional

Published
2016
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24. Thromboaspiration technique as first approach for endovascular treatment of acute ischemic stroke: initial experience at nine Italian stroke centers

Author

Romano, D G, primary, Cioni, S, additional, Vinci, S L, additional, Pero, G, additional, Comelli, C, additional, Comai, A, additional, Peschillo, S, additional, Mardighian, D, additional, Castellan, L, additional, Resta, F, additional, Piano, M G, additional, Comelli, S, additional, Barletta, L, additional, Puliti, A, additional, Leonini, S, additional, and Bracco, S, additional

Published
2016
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25. Hemodynamic and Anatomic Variations Require an Adaptable Approach during Intra-Arterial Chemotherapy for Intraocular Retinoblastoma: Alternative Routes, Strategies, and Follow-Up

Author

Bertelli, E., primary, Leonini, S., additional, Galimberti, D., additional, Moretti, S., additional, Tinturini, R., additional, Hadjistilianou, T., additional, De Francesco, S., additional, Romano, D. G., additional, Vallone, I. M., additional, Cioni, S., additional, Gennari, P., additional, Galluzzi, P., additional, Grazzini, I., additional, Rossi, S., additional, and Bracco, S., additional

Published
2016
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27. Multicarrier Digital Pre-distortion/ Equalization Techniques for Non-linear Satellite Channels

Author

Roberto Piazza, Zimmer F, Rönnow D, Heckmann F, Zenteno E, Bhavani Shankar, Grotz J, Cioni S, and Grasslin M

Subjects
Ingénierie électrique & électronique [C06] [Ingénierie, informatique & technologie], Engineering, Satellite channel, business.industry, Equalization (audio), Electrical Engineering, Electronic Engineering, Information Engineering, Power (physics), Electrical & electronics engineering [C06] [Engineering, computing & technology], Nonlinear system, Transmission (telecommunications), Key (cryptography), Electronic engineering, Satellite, Elektroteknik och elektronik, business, Pre distortion
Abstract

Two key advances are envisaged for future missions: (a) spectrally efficient transmission to meet the increasing demand and (b) sharing of satellite capacity among different links to meet power/massrequirements.Joint amplification of multiple-carrier DVB-S2 signals using a single High-Power Amplifier (HPA) is a particular application of satellite resource sharing. However, effects specific tosuch a scenariothat degrade power and spectral efficiencies include (a) an increased Adjacent Channel Interference caused by non-linear characteristic ofthe HPA and (b)increased peak to average power ratio. The paper studies signal processing techniques –digital pre-distortion (DPD) at the gateway and equalization (EQ) at the User Terminal–to mitigate the non-linear effects and improve power as well as spectral efficiencies.While the algorithms for DPD and EQ are described in literature, their use in multi-carrier scenario is novel and poses new challenges that are investigated in the paper.

Published
2012

30. Modulation Techniques

Author

Mathiopoulos, P. T., primary, Albertazzi, G., additional, Bithas, P., additional, Cioni, S., additional, Corazza, G. E., additional, Duverdier, A., additional, Javornik, T., additional, Morosi, S., additional, Neri, M., additional, Papaharalabos, S., additional, Ribes, A., additional, and Sagias, N. C., additional

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34. A performance review of PSP for joint phase/frequency and data estimation in future broadband satellite networks

Author

Vanelli-Coralli, A. Salmi, P. Cioni, S. Corazza, G.E. Polydoros, A.

Abstract

In unknown channels, nonadaptive maximum likelihood sequence detection (NA-MLSD) is far from optimum in the presence of channel-induced uncertainty. To counteract this uncertainty, conventional solutions augment MLSD with external channel estimators. However, for very low SNR values this estimation procedure becomes marginal and the conventional adaptive MLSD (CA-MLSD) approaches perform poorly. We consider joint data decoding and parameter estimation techniques, and in particular per survivor processing (PSP) techniques, as a potentially effective solutions to this problem, at the expense of increased complexity. The performance/complexity tradeoff is addressed in the paper for a convolutionally encoded Q-PSK return link of an SHF/EHF satellite system for multimedia services impaired by phase noise and frequency offsets. By contrasting NA-MLSD, CA-MLSD, and PSP, ranges are provided for channel conditions where the tradeoff favors a particular technique. Further, CA-MLSD and PSP are also contrasted in terms of scalar/vector estimation performance.

Published
2001

40. From S-band mobile interactive multimedia to fixed satellite interactive multimedia: making satellite interactivity affordable at Ku-band and Ka-band.

Author

Arcidiacono, A., Finocchiaro, D., Collard, F., Scalise, S., Lazaro Blasco, F., De Gaudenzi, R., Cioni, S., Alagha, N., and Andrenacci, M.

Subjects
INTERACTIVE multimedia, MOBILE communication systems, MICROWAVE frequency converters, FUZZY control systems, MULTICASTING protocols
Abstract

This paper describes the evolution of the ETSI S-band mobile interactive multimedia protocol to support fixed satellite interactive multimedia (F-SIM) services exploiting existing Ku-band and Ka-band satellites. The key F-SIM protocol differences for both physical and upper layers are described and justified. The F-SIM protocol has been adopted by the recently deployed Eutelsat Broadcast Interactive System whose architecture, key system parameters, link budget examples and key composing elements are also described. Finally, a summary of laboratory and field trials results over the Eutelsat KA-SAT multibeam satellite are illustrated. Copyright © 2015 John Wiley & Sons, Ltd. [ABSTRACT FROM AUTHOR]

Published
2016
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45. Short IRA Codes for Mobile DVB-RCS

Author

Liva, Gianluigi, primary, Parraga Niebla, Cristina, additional, Scalise, S., additional, Papaleo, M., additional, Cioni, S., additional, Vanelli-Coralli, A., additional, and Corazza, Giovanni E., additional

Published
2008
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