Abstract
Power-aware routing has proven to be effective in maximizing the life time of ad-hoc networks. However, all the previous research focused on the power-aware routing algorithms in a cooperative network, where all the nodes honestly report battery usage. However, selfish nodes in ad-hoc networks have incentives to misreport lower residual energy to maximize their own usage. In this paper, we first show that it is a dominant strategy for a selfish node to report lower residual energy in a power-aware ad-hoc network, which diminishes the benefits of power-aware routing algorithms. We then propose a novel power-aware reputation system (PARS), to stimulate cooperation on power-aware routing in ad-hoc networks. Analysis and simulation results show that PARS is effective in supporting power-aware routing in selfish ad-hoc networks.
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