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PIS: A Practical Incentive System for Multi-hop Wireless Networks

By Mohamed Elsalih Mahmoud and Xuemin (sherman Shen


Abstract—In multi-hop wireless networks, the mobile nodes usually act as routers to relay other nodes ’ packets for enabling new applications and enhancing the network performance and deployment. However, selfish nodes may not cooperate and make use of the cooperative nodes to relay their packets, which has negative effect on the network fairness, security, and performance. Incentive systems implement micropayment in the network to stimulate the selfish nodes to cooperate. However, micropayment schemes have been originally proposed for webbased applications, so a practical incentive system should consider the differences between web-based applications and cooperation stimulation. In this paper, first, these differences are investigated and a payment model is developed for efficient implementation of micropayment in multi-hop wireless networks. Second, based on the developed payment model, an incentive system is proposed to stimulate the nodes ’ cooperation in multi-hop wireless networks. Third, reactive receipt submission mechanism is proposed to reduce the number of submitted receipts and protect against collusion attacks. Extensive analysis and simulations demonstrate that our incentive system can secure the payment, and reduce the overhead of storing, submitting, and processing the payment receipts significantly, which can improve the system’s practicality due to the high frequency of low-value payment transactions

Topics: Index Terms—Cooperation Stimulation, Incentive Systems, Packet Drop Attack, Selfish Mobile Nodes. T
Year: 2010
OAI identifier: oai:CiteSeerX.psu:
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