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- 저자 : Bouhorma,K. (검색결과 3 건)
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Performance Study of Various Routing Protocols in VANET Case of Study
Mohamed Ben Ahmed,A. A. Boudhir,M. Bouhorma,K. Ben Ahmed 보안공학연구지원센터 2014 International Journal of Future Generation Communi Vol.7 No.6
Vehicular ad hoc networks or VANET that establishes wireless connections between cars have recently received considerable attention. VANET are used in Intelligent Transportation Systems (ITS) that are designed to offer passengers and vehicles services like warning of accidents, driver assistance, Internet access, etc. The evaluation of VANET routing protocols often involves simulators since management and operation of a large number of real vehicular nodes is expensive. We study the behavior of routing protocols in VANETs by using mobility information obtained from a microscopic vehicular traffic simulator that is based on the real road maps of Tangier in Morocco. In this paper, we evaluate AODV, DSR and OLSR performance in urban scenarios case study. We study those protocols under varying metrics such as node mobility, vehicle density, and with varying traffic rates. We show that clustering effects created by cars aggregating at intersections have remarkable impacts on evaluation and performance metrics. Our objective is to provide a qualitative assessment of the applicability of the protocols in different vehicular scenarios. The results show that OLSR performs best in most of the simulated traffic situations
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MANET : Securing AODV Based on a Combined Immune Theories Algorithm (CITA)
Anass Khannous,Fatiha Elouaai,Anass Rghioui,Mohammed Bouhorma 보안공학연구지원센터 2016 International Journal of Security and Its Applicat Vol.10 No.9
Mobile Ad hoc Networks consist of a set of mobile nodes communicating with each other in a decentralized and dynamic topology where nodes provide retransmission capabilities. Communications between source nodes and destinations go through routes represented by a set of intermediate nodes that are required to adapt and behave in response to some actions according to orders given by the chosen routing protocol. Absence of a centralized architecture, in addition to open wireless medium of Ad hoc networks, as well as nodes mobility are ones of the network characteristics that render the environment much vulnerable to different routing attacks. A wide range of current researches focus on enhancing MANET security using various techniques like cryptography, but these mechanisms creates too much overhead. Artificial Immune Systems provide intrusion detection techniques based on the abstraction of the human immune system. They are known to be very efficient and lightweight algorithms. Multiple immune theories are implemented like Negative selection, Clonal selection, Danger theory, Immune network...etc. This paper proposes the use of combined immune theories as an Intrusion Detection System that integrates to the AODV routing protocol and that can sense the presence of non-trusted nodes, as it can eliminate them from the network. The proposed approach is tested and validated in presence of Packet Dropping Attack. Promising results in terms of network performance then are discussed.
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