带有投递概率感知的低开销机会网络路由机制  

Cost-Efficient Routing Mechanism with Delivery Probability Perception in Opportunistic Networks

作　　者：吴大鹏[1] 刘佳[1] 王汝言[1] 

机构地区：[1]重庆邮电大学宽带泛在接入技术研究所,重庆400065

出　　处：《北京邮电大学学报》2013年第6期64-68,共5页Journal of Beijing University of Posts and Telecommunications

基　　金：国家自然科学基金项目(61001105;61371097)

摘　　要：中继节点的选择将直接影响机会网络的数据转发性能.对此提出一种带有投递概率感知的低开销机会网络路由机制.利用节点间的间接相遇时间间隔估计间接相遇概率,并结合直接相遇概率预测节点间的综合相遇概率,进而合理地选择中继节点,以极低开销的方式转发数据.结果表明,在数据传输过程中,所提出机制的负载率平均降低了64.9%.The selection of relay node will directly affect the data forwarding performance of opportunity network. Therefore the cost-efficient routing mechanism with delivery probability perception （DPP- CERM） in opportunistic networks is proposed. The probability of comprehensive encounter between nodes by combining the probability of direct encounter and indirect encounter is estimated and evaluated by in- direct inter-meeting time between nodes. The relay node reasonably and forward data with very lower cost were chosen thereafter. It is shown that DPP-CERM can reduce the average overhead ratio of data for- warding at least 64.9%.

关 键 词：机会网络 间接相遇概率 数据传输 投递概率感知 

分 类 号：TP393.04[自动化与计算机技术—计算机应用技术]