On the Robustness of a Novel Reputation Mechanism for Centralized Clustered Ad-hoc Networks
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چکیده
Although individual node cooperation is necessary for the correct execution of network protocols in Mobile Adhoc Networks, it is not always guaranteed. In this paper, we present a reputation mechanism aiming at enforcing node cooperation in clustered Mobile Ad-hoc Networks with centralized control. Misbehavior detection techniques for protocol attacks in the cluster formation phases of the network operation are developed. Statistical methods for selecting the optimal parameters of the reputation scheme are investigated and their efficiency is illustrated through theoretical analysis and simulation results. Special care has been given to issues such as probability of detection of a misbehaving MT and probability of falsely accusing a legitimate node due to nonintentional failures to cooperate. Additionally, the robustness of the reputation mechanism in the presence of multiple malicious or selfish nodes is evaluated. Index Terms — Ad-hoc networks, MANETs, Cooperation Enforcement, Misbehavior Detection, Reputation Mechanism, Random Walk.
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تاریخ انتشار 2005