Cooperation Enhancement for Message Transmission in VANETs |
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Authors: | Zhou Wang Chunxiao Chigan |
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Affiliation: | (1) Department of Electrical and Computer Engineering, Michigan Technological University, Houghton, MI 49931, USA |
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Abstract: | As one special case of the Mobile Ad Hoc Networks (MANET), vehicular ad-hoc networking (VANET) is featured by its high mobility
and constantly changing topology. In VANET, nodes can work properly only if the participating vehicles cooperate with each
other during communications. However, as a distributed network, individual vehicles might be non-cooperative for their own
benefits. In order to prevent non-cooperative vehicles from tampering packet relaying in the network, we propose a cooperation
enhancement mechanism using “Neighborhood WatchDog” to generate “Trust Token” based on the first-hand observation. Therefore, trust relationships and packet-acceptance decisions of the receiving nodes
are based on the instant observation and the token-proved relaying behavior of the benign neighboring vehicles. With the inherit
mapping between the Electronic ID of one vehicle and its public key, keys can be distributed on-the-fly. As a network layer solution, the cooperation enhancement
mechanism proposed in this paper is built on the top of our previous proposed Media Access Control (MAC) protocol: Relative
Position Based-MAC (RPB-MAC). |
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Keywords: | VANET WatchDog trust token E_ID public key digital signature |
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