A scalable and robust approach to collaboration enforcement in mobile ad-hoc networks

    Authors

    N. Jiang; K. A. Hua;D. Z. Liu

    Comments

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    Abbreviated Journal Title

    J. Commun. Netw.

    Keywords

    cooperation enforcement; selfish node; wireless ad-hoc network; Computer Science, Information Systems; Telecommunications

    Abstract

    Mobile ad-hoc networks (MANETs) have attracted great research interest in recent years. Among many issues, lack of motivation for participating nodes to collaborate forms a major obstacle to the adoption of MANETs. Many contemporary collaboration enforcement techniques employ reputation mechanisms for nodes to avoid and penalize malicious participants. Reputation information is propagated among participants and updated based on complicated trust relationships to thwart false accusation of benign nodes. The aforementioned strategy suffers from low scalability and is likely to be exploited by adversaries. In this paper, we propose a novel approach to address these problems. With the proposed technique, no reputation information is propagated in the network and malicious nodes cannot cause false penalty to benign hosts. Nodes classify their one-hop neighbors through direct observation and misbehaving nodes are penalized within their localities. Data packets are dynamically rerouted to circumvent selfish nodes. As a result, overall network performance is greatly enhanced. This approach significantly simplifies the collaboration enforcement process, incurs low overhead, and is robust against various malicious behaviors. Simulation results based on different system configurations indicate that the proposed technique can significantly improve network performance with very low communication cost.

    Journal Title

    Journal of Communications and Networks

    Volume

    9

    Issue/Number

    1

    Publication Date

    1-1-2007

    Document Type

    Article

    Language

    English

    First Page

    56

    Last Page

    66

    WOS Identifier

    WOS:000245493000008

    ISSN

    1229-2370

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