Perspectives of QoS Management Based on QoAS for 3G Communication Systems

Byline: R. Lojacono (1), M. Re (1), M. Caciotta (2), F. Leccese (2), D. Petri (2), A. Moschitta (3), C. Gennarelli (4), G. Riccio (4), P. Daponte (5), S. Rapuano (5), D. Grimaldi (6), S. Graziani (7), S. Sangiovanni (8) Keywords: QoS; 3G communications systems; TFR; codesign; QoAS Abstract: The UMTS appear to be the communication system of the next future. In thissystem all the communication services will be included. This means that theQuality of Service (QoS) will have a great importance. So is envisaged thatthe management of the system will take in account the momentary systemcapabilities continually determined in real time. Until now, the quality ofthe links is determined by end-to-end in line procedures based on Bit ErrorRate (BER) measurements. It is clear that an end-to-end procedure cannotdetect the worse section of the link. To overcome this inconvenient the morerecent trend of QoS management is to realise a distributed monitoring of thewhole system. Following this last trend this paper proposes a distributedoff-line monitoring of the system based on the analysis of the Quality ofAnalog Signal (QoAS). This proposed analysis implies a high-speed analog todigital conversion of the Intermediate Frequency signal and a very complexprocessing. In this paper, the state-of-the-art researches performed in thisperspective are described. Author Affiliation: (1) University of Rome ``Tor Vergata'', Via del Politecnico 1, 00133, Rome, Italy (2) University of Rome ``RomaTre'', Via della Vasca Navale 84, 00146, Rome, Italy (3) University of Perugia, Via G. Duranti 93, 06125, Perugia, Italy (4) University of Salerno, Via Ponte Don Melillo, 84084, Fisciano (SA), Italy (5) University of Sannio, Piazza Roma, 82100, Benevento, Italy (6) University of Calabria, 87036, Rende (CS), Italy (7) University of Catania, Viale A. Doria, 6, 95125, Catania, Italy (8) University of Rome ``La Sapienza'', Via Eudossiana, 18, 00184, Roma, Italy Article History: Registration Date: 11/10/2004