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458 results on '"Merabti, Madjid"'

66. Book reviews

Author

Gilmore, David, Cumming, Geoff, Ross, Simon, Rosbottom, John, Keravnou, Elpida, Dodd, Tony, Merabti, Madjid, Merabti, Madjid, Byron, G., Bolc, Leonard, and Crookston, Ian

Published
1990
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67. Autonomous mobile agent based fair exchange

Author

Ning Zhang, Qi Shi, Merabti, Madjid, and Askwith, Robert

Subjects
Protocol, Data transfer rate, Transmission speed, Technology application, Signature verification -- Technology application, Computer network protocols -- Innovations, Data transfer rate -- Innovations, Transmission speed -- Innovations
Published
2004

68. ContextRank

Author

Arabo, Abdullahi, primary, Shi, Qi, additional, and Merabti, Madjid, additional

Published
2011
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90. Book reviews

Author

Drapkin, Tony, Ramsay, Allan, Hedges, Steve, Magill, Aidan P., Curran, E. P., Merabti, Madjid, Davies, Miranda, Dodd, Tony, and Fogarty, Terence C.

Published
1990
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96. Thwarting Sybil Attackers in Reputation-based Scheme in Mobile Ad hoc Networks.

Author

Abbas, Sohail, Merabti, Madjid, Kifayat, Kashif, and Baker, Thar

Subjects
AD hoc computer networks, GAME theory
Abstract

Routing in mobile ad hoc networks is performed in a distributed fashion where each node acts as host and router, such that it forwards incoming packets for others without relying on a dedicated router. Nodes are mostly resource constraint and the users are usually inclined to conserve their resources and exhibit selfish behaviour by not contributing in the routing process. The trust and reputation models have been proposed to motivate selfish nodes for cooperation in the packet forwarding process. Nodes having bad trust or reputation are detected and secluded from the network, eventually. However, due to the lack of proper identity management and use of non-persistent identities in ad hoc networks, malicious nodes can pose various threats to these methods. For example, a malicious node can discard the bad reputed identity and enter into the system with another identity afresh, called whitewashing. Similarly, a malicious node may create more than one identity, called Sybil attack, for self-promotion, defame other nodes, and broadcast fake recommendations in the network. These identity-based attacks disrupt the overall detection of the reputation systems. In this paper, we propose a reputation-based scheme that detects selfish nodes and deters identity attacks. We address the issue in such a way that, for normal selfish nodes, it will become no longer advantageous to carry out a whitewash. Sybil attackers are also discouraged (i.e., on a single battery, they may create fewer identities). We design and analyse our rationale via game theory and evaluate our proposed reputation system using NS-2 simulator. The results obtained from the simulation demonstrate that our proposed technique considerably diminishes the throughput and utility of selfish nodes with a single identity and selfish nodes with multiple identities when compared to the benchmark scheme. [ABSTRACT FROM AUTHOR]

Published
2019
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99. A self-organised middleware architecture for Wireless Sensor Network management

Author

Yu, Mengjie, Mokhtar, Hala, and Merabti, Madjid

Subjects
Database middleware, Middleware, Wireless technology, Computer networks -- Analysis, Information networks -- Analysis, Middleware -- Usage, Middleware -- Analysis, Mobile communication systems -- Analysis, Wireless communication systems -- Analysis
Published
2008

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