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Improvement of Routing Security in Ad Hoc Networks Against Several Attacks

Sedghi, Hanie | 2009

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 40044 (05)
  4. University: Sharif University of Technology
  5. Department: Electrical Engineering
  6. Advisor(s): Aref, Mohammad Reza; Pakravan, Mohammad Reza
  7. Abstract:
  8. Secure routing is a major key to service maintenance in wireless ad hoc networks. Ad hoc nature exposes the network to several types of node misbehavior or attacks. Wormhole attack is one of the most severe active attacks to mobile ad hoc networks. Noting the resource limitations in such networks, nodes may have a tendency to behave selfishly. Selfish behavior can have drastic impacts on network performance. We have proposed a Misbehavior-Tolerant Multipath Routing protocol (MTMR) which detects and punishes all types of misbehavior such as selfish behavior, wormhole, sinkhole and grey-hole attacks. The protocol utilizes a proactive approach to enforce cooperation. In addition, it uses a novel data redirection method to mitigate considered misbehaviors' impact on network performance. The proposed scheme promises establishing a safe route if network graph remains connected after eliminating the misbehaving nodes. We have designed a MANET Routing Simulator (MARS) and implemented the proposed protocol in MARS and have evaluated MTMR's performance in typical network configurations to demonstrate its resilience to node misbehavior and its success in punishing misbehaving nodes
  9. Keywords:
  10. Wormhole Attack ; Ad Hoc Network ; Selfish Routing ; Dynamic Data Redirection ; Multipath Routing

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