Cooperation Enforcement Scheme Based on Reputation for Delay Tolerant Networks
Delay tolerant networks (DTNs) benefit diverse applications where the condition suffers significant delays and disruptions. In DTNs, bundles, the intransit messages, can be sent immediately over an existing link or be buffered until an opportunistic link appears. The opportunistic data transferring in DTNs relies on the hypothesis that each individual forwards bundles honestly. The hypothesis that all the nodes behave rationally to share their resources for the global connectivity is considered as a Utopia, and might easily be impaired in the presence of selfish individuals. To address this problem, we propose a cooperation enforcement scheme based on reputation. For the unique features of DTNs, a protocol of bundle propagation is presented to cope with the detection of misbehavior, and a design of reputation manager is proposed to distinguish selfish individuals. The performance evaluation demonstrates the efficiency of our proposal.
DTN reputation cooperation enforcement selfishness incentive
Xi Zhang Xiaofei Wang Anna Liu Quan Zhang Chaojing Tang
College of Electronic Science and Engineering National University of Defense Technology Changsha, China 410073
国际会议
哈尔滨
英文
2372-2376
2011-12-24（万方平台首次上网日期，不代表论文的发表时间）