采用传递概率与社会网络分析的延迟容忍网络路由  

A Delay-Tolerant Network Routing Based on Probability of Relay and Social Network Analysis

作　　者：杨沫[1] 由磊[1] 李冰[1] 赵建军[1] 

机构地区：[1]天津大学电子信息工程学院,天津300072

出　　处：《西安交通大学学报》2016年第12期136-141,共6页Journal of Xi'an Jiaotong University

基　　金：国家自然科学基金资助项目(61202380);天津市自然科学基金资助项目(12JCQNJC00300)

摘　　要：结合了传递概率与社会网络分析的路由设计,可以充分利用网络中节点的运动特性增强端到端的消息传输质量。通过对节点进行相遇历史信息分析和社会关系分析,提出了基于传递概率与社会网络分析的延迟容忍网络路由(RPRSA)。相遇历史信息分析是通过节点在相遇时进行独立概率计算和彼此概率信息交换,使得节点可以预测它在短期内的移动特性;社会关系分析是通过节点在长期内的移动所形成的关系亲疏程度,使得节点可以预测它的长期运动规律。仿真结果表明,该路由算法能够很好地利用节点的运动特性,保证弱社会关系节点和孤立节点有更好的消息传输质量,更好地提高节点端到端的消息传输质量。Routing designs that combine with relay probability and social network analysis can fully utilize movement characteristic of nodes and enhance quality of message transmission from end to end. A delay-tolerant network routing based on probability of relay and social network analysis （RPRSA） is proposed based on the analyses of historical information of nodes encounters and social relationship. The analysis of historical information is to forecast short-run movement characteristic by independent probability computation and probability information exchange with each other when nodes encounter, and the analysis of social relation is to forecast long-run movement law by the degree of intimacy among nodes formed in long-run movements. Simulation results show that the proposed routing makes full use of movement features among nodes, guarantees the quality of messages transmission among the nodes with weak social relation and the isolate nodes, and enhances the quality of messages transmission from end to end.

关 键 词：延迟容忍网络 社会网络分析 传递概率 路由设计 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]