可信度动态感知的间断连接无线网络数据转发机制  

Dynamical credibility aware data forwarding mechanism for intermittently connected wireless networks

作　　者：吴大鹏[1] 张洪沛[1] 王汝言[1] 刘乔寿[1] 

机构地区：[1]重庆邮电大学光通信与网络重点实验室,重庆400065

出　　处：《通信学报》2015年第8期13-22,共10页Journal on Communications

基　　金：国家自然科学基金资助项目(61371097);重庆市自然科学重点基金资助项目(CSTC2013JJB40001;CSTC2013JJB40006);重庆邮电大学青年自然科学基金资助项目(A2012-93);重庆市青年科技人才培养计划基金资助项目(CSTC2014KJRC-QNRC40001)~~

摘　　要：提出了一种节点可信度动态感知的间断连接无线网络数据转发机制,节点根据运动过程中所获知的局部网络状态信息以分布式的方式估计其他节点恶意度及协作度,并根据历史信息预测节点的连通状态,进而获知各个节点的信任程度,以合理地选择中继节点,实现高效的数据转发。仿真结果表明,所提出的机制能够有效提高数据传输的可靠性,并大幅降低网络负载率,提高网络资源利用率。A novel dynamic credibility aware packet forwarding mechanism for intermittently connected wireless net- works is proposed. According to the network state information obtained locally by a moving node, the malicious degrees and collaboration degrees of nodes can be obtained in a distributed manner. Meanwhile, based on the node connectivity, the credibility of a node is estimated, furthermore, the relay node can be selected reasonably. Results show that the pro- posed mechanism can effectively enhance the reliability of data transmission while reducing the network load rate sig- nificantly. Thus, the utilization of network resources is improved.

关 键 词：间断连接无线网络 信任管理 非协作行为 数据转发 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]