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1,619 results on '"Stojmenovic, Ivan"'

1. Improving Data Forwarding in Mobile Social Networks with Infrastructure Support: A Space-Crossing Community Approach

Author

Li, Zhong, Wang, Cheng, Yang, Siqian, Jiang, Changjun, and Stojmenovic, Ivan

Subjects
Computer Science - Social and Information Networks, Physics - Physics and Society
Abstract

In this paper, we study two tightly coupled issues: space-crossing community detection and its influence on data forwarding in Mobile Social Networks (MSNs) by taking the hybrid underlying networks with infrastructure support into consideration. The hybrid underlying network is composed of large numbers of mobile users and a small portion of Access Points (APs). Because APs can facilitate the communication among long-distance nodes, the concept of physical proximity community can be extended to be one across the geographical space. In this work, we first investigate a space-crossing community detection method for MSNs. Based on the detection results, we design a novel data forwarding algorithm SAAS (Social Attraction and AP Spreading), and show how to exploit the space-crossing communities to improve the data forwarding efficiency. We evaluate our SAAS algorithm on real-life data from MIT Reality Mining and UIM. Results show that space-crossing community plays a positive role in data forwarding in MSNs in terms of deliver ratio and delay. Based on this new type of community, SAAS achieves a better performance than existing social community-based data forwarding algorithms in practice, including Bubble Rap and Nguyen's Routing algorithms.

Published
2013

2. A Security Architecture for Data Aggregation and Access Control in Smart Grids

Author

Ruj, Sushmita, Nayak, Amiya, and Stojmenovic, Ivan

Subjects
Computer Science - Networking and Internet Architecture
Abstract

We propose an integrated architecture for smart grids, that supports data aggregation and access control. Data can be aggregated by home area network, building area network and neighboring area network in such a way that the privacy of customers is protected. We use homomorphic encryption technique to achieve this. The consumer data that is collected is sent to the substations where it is monitored by remote terminal units (RTU). The proposed access control mechanism gives selective access to consumer data stored in data repositories and used by different smart grid users. Users can be maintenance units, utility centers, pricing estimator units or analyzing and prediction groups. We solve this problem of access control using cryptographic technique of attribute-based encryption. RTUs and users have attributes and cryptographic keys distributed by several key distribution centers (KDC). RTUs send data encrypted under a set of attributes. Users can decrypt information provided they have valid attributes. The access control scheme is distributed in nature and does not rely on a single KDC to distribute keys. Bobba \emph{et al.} \cite{BKAA09} proposed an access control scheme, which relies on a centralized KDC and is thus prone to single-point failure. The other requirement is that the KDC has to be online, during data transfer which is not required in our scheme. Our access control scheme is collusion resistant, meaning that users cannot collude and gain access to data, when they are not authorized to access. We theoretically analyze our schemes and show that the computation overheads are low enough to be carried out in smart grids. To the best of our knowledge, ours is the first work on smart grids, which integrates these two important security components (privacy preserving data aggregation and access control) and presents an overall security architecture in smart grids., Comment: 12 Pages, 3 figures

Published
2011

3. Data-centric Misbehavior Detection in VANETs

Author

Ruj, Sushmita, Cavenaghi, Marcos Antonio, Huang, Zhen, Nayak, Amiya, and Stojmenovic, Ivan

Subjects
Computer Science - Networking and Internet Architecture
Abstract

Detecting misbehavior (such as transmissions of false information) in vehicular ad hoc networks (VANETs) is very important problem with wide range of implications including safety related and congestion avoidance applications. We discuss several limitations of existing misbehavior detection schemes (MDS) designed for VANETs. Most MDS are concerned with detection of malicious nodes. In most situations, vehicles would send wrong information because of selfish reasons of their owners, e.g. for gaining access to a particular lane. Because of this (\emph{rational behavior}), it is more important to detect false information than to identify misbehaving nodes. We introduce the concept of data-centric misbehavior detection and propose algorithms which detect false alert messages and misbehaving nodes by observing their actions after sending out the alert messages. With the data-centric MDS, each node can independently decide whether an information received is correct or false. The decision is based on the consistency of recent messages and new alert with reported and estimated vehicle positions. No voting or majority decisions is needed, making our MDS resilient to Sybil attacks. Instead of revoking all the secret credentials of misbehaving nodes, as done in most schemes, we impose fines on misbehaving nodes (administered by the certification authority), discouraging them to act selfishly. This reduces the computation and communication costs involved in revoking all the secret credentials of misbehaving nodes., Comment: 12 pages

Published
2011

4. Constructing Connected-Dominating-Set with Maximum Lifetime in Cognitive Radio Networks

Author

Lin, Zhiyong, Liu, Hai, Chu, Xiaowen, Leung, Yiu-Wing, and Stojmenovic, Ivan

Abstract

Connected-dominating-set (CDS) is a representative technique for constructing virtual backbones of wireless networks and thus facilitates implementation of many tasks including broadcasting, routing, etc. Most of existing works on CDS aim at constructing the minimum CDS (MCDS), so as to reduce the communication overhead over the CDS. However, MCDS may not work well in cognitive radio networks (CRNs) where communication links are prone to failure due to stochastic activities of primary users (PUs). A MCDS without consideration of the stochastic activities of PUs easily becomes invalid when the PUs become active. This study addresses a new CDS construction problem by considering the PUs’ activities. Our problem is to maximize the lifetime of the CDS while minimizing the size of the CDS, where the lifetime of a CDS is defined as the expected duration that the CDS is maintained valid. We show that the problem is NP-hard and propose a three-phase centralized algorithm. Given a CRN, the centralized algorithm can compute a CDS such that the lifetime of the CDS is maximized (optimal), and the size of the CDS is upper-bounded. We further present a two-phase localized algorithm which requires 2-hop information. Extensive simulations are conducted to evaluate the proposed algorithms.

Published
2024
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8. From Real Neighbors to Imaginary Destination: Emulation of Large Scale Wireless Sensor Networks

Author

Pavkovic, Bogdan, Radak, Jovan, Mitton, Nathalie, Rousseau, Franck, Stojmenovic, Ivan, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Li, Xiang-Yang, editor, Papavassiliou, Symeon, editor, and Ruehrup, Stefan, editor

Published
2012
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9. Maximizing Lifetime of Connected-Dominating-Set in Cognitive Radio Networks

Author

Lin, Zhiyong, Liu, Hai, Chu, Xiaowen, Leung, Yiu-Wing, Stojmenovic, Ivan, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Bestak, Robert, editor, Kencl, Lukas, editor, Li, Li Erran, editor, Widmer, Joerg, editor, and Yin, Hao, editor

Published
2012
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11. Secure and Energy-Efficient Data Aggregation with Malicious Aggregator Identification in Wireless Sensor Networks

Author

Li, Hongjuan, Li, Keqiu, Qu, Wenyu, Stojmenovic, Ivan, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Sudan, Madhu, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Vardi, Moshe Y., Series editor, Weikum, Gerhard, Series editor, Xiang, Yang, editor, Cuzzocrea, Alfredo, editor, Hobbs, Michael, editor, and Zhou, Wanlei, editor

Published
2011
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12. Improved Access Control Mechanism in Vehicular Ad Hoc Networks

Author

Ruj, Sushmita, Nayak, Amiya, Stojmenovic, Ivan, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Sudan, Madhu, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Vardi, Moshe Y., Series editor, Weikum, Gerhard, Series editor, Frey, Hannes, editor, Li, Xu, editor, and Ruehrup, Stefan, editor

Published
2011
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16. Broadcast in Ad Hoc Networks

Author

Lipman, Justin, Liu, Hai, Stojmenovic, Ivan, Sammes, A.J., Series Editor, Misra, Sudip, editor, Woungang, Isaac, editor, and Chandra Misra, Subhas, editor

Published
2009
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17. Auction Aggregation Protocols for Wireless Robot-Robot Coordination

Author

Mezei, Ivan, Malbasa, Veljko, Stojmenovic, Ivan, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Sudan, Madhu, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Vardi, Moshe Y., Series editor, Weikum, Gerhard, Series editor, Ruiz, Pedro M., editor, and Garcia-Luna-Aceves, Jose Joaquin, editor

Published
2009
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19. Mesh-Based Sensor Relocation for Coverage Maintenance in Mobile Sensor Networks

Author

Li, Xu, Santoro, Nicola, Stojmenovic, Ivan, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Indulska, Jadwiga, editor, Ma, Jianhua, editor, Yang, Laurence T., editor, Ungerer, Theo, editor, and Cao, Jiannong, editor

Published
2007
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20. Localized Mobility Control Routing in Robotic Sensor Wireless Networks

Author

Liu, Hai, Nayak, Amiya, Stojmenović, Ivan, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Zhang, Hongke, editor, Olariu, Stephan, editor, Cao, Jiannong, editor, and Johnson, David B., editor

Published
2007
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21. The Impact of Delay in Dominating Set and Neighbor Elimination Based Broadcasting in Ad Hoc Networks

Author

García-Nocetti, Fabián, Ovalle-Martínez, Francisco Javier, Solano-González, Julio, Stojmenović, Ivan, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Kranakis, Evangelos, editor, and Opatrny, Jaroslav, editor

Published
2007
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26. Area Based Beaconless Reliable Broadcasting in Sensor Networks

Author

Ovalle-Martínez, Francisco Javier, Nayak, Amiya, Stojmenović, Ivan, Carle, Jean, Simplot-Ryl, David, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Dough, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Nikoletseas, Sotiris E., editor, and Rolim, José D. P., editor

Published
2006
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27. A Pure Localized Algorithm for Finding Connected Dominating Set in MANETs by Classification of Neighbors

Author

Liu, Hui, Pan, Yi, Stojmenovic, Ivan, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Dough, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Cheng, Xiuzhen, editor, Li, Wei, editor, and Znati, Taieb, editor

Published
2006
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29. Position Based Gradient Routing in Mobile Ad Hoc Networks

Author

Ruhil, Anand Praksh, Lobiyal, D. K., Stojmenovic, Ivan, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Sudan, Madhu, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Dough, Series editor, Vardi, Moshe Y., Series editor, Weikum, Gerhard, Series editor, and Chakraborty, Goutam, editor

Published
2005
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31. An Adaptive Localized Scheme for Energy-Efficient Broadcasting in Ad Hoc Networks with Directional Antennas

Author

Cartigny, Julien, Simplot-Ryl, David, Stojmenović, Ivan, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Dough, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Niemegeers, Ignas, editor, and de Groot, Sonia Heemstra, editor

Published
2004
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32. Progress Based Localized Power and Cost Aware Routing Algorithms for Ad Hoc and Sensor Wireless Networks

Author

Kuruvila, Johnson, Nayak, Amiya, Stojmenovic, Ivan, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Dough, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Nikolaidis, Ioanis, editor, Barbeau, Michel, editor, and Kranakis, Evangelos, editor

Published
2004
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33. Finding Minimum Transmission Radii for Preserving Connectivity and Constructing Minimal Spanning Trees in Ad Hoc and Sensor Networks

Author

Ovalle-Martínez, Francisco Javier, Stojmenovic, Ivan, García-Nocetti, Fabián, Solano-González, Julio, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Dough, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Ribeiro, Celso C., editor, and Martins, Simone L., editor

Published
2004
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41. Honeycomb networks

Author

Stojmenović, Ivan, Goos, Gerhard, editor, Hartmanis, Juris, editor, van Leeuwen, Jan, editor, Wiedermann, Jiří, editor, and Hájek, Petr, editor

Published
1995
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44. Immobilizing a polytope

Author

Czyzowicz, Jurek, Stojmenovic, Ivan, Urrutia, Jorge, Goos, Gerhard, editor, Hartmanis, Juris, editor, Dehne, Frank, editor, Sack, Jörg-Rüdiger, editor, and Santoro, Nicola, editor

Published
1991
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45. Parallel algorithms for generating subsets and set partitions

Author

Djokić, Borivoje, Miyakawa, Masahiro, Sekiguchi, Satoshi, Semba, Ichiro, Stojmenović, Ivan, Goos, G., editor, Hartmanis, J., editor, Barstow, D., editor, Brauer, W., editor, Brinch Hansen, P., editor, Gries, D., editor, Luckham, D., editor, Moler, C., editor, Pnueli, A., editor, Seegmüller, G., editor, Stoer, J., editor, Wirth, N., editor, Asano, Tetsuo, editor, Ibaraki, Toshihide, editor, Imai, Hiroshi, editor, and Nishizeki, Takao, editor

Published
1990
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