摘要
机会网络中,合理地选择中继节点进行消息转发,是实现消息高效交付的关键所在。现有的机会网络路由协议在中继节点的选择上往往存在随机性,同时对消息副本数量的分发缺乏合理控制。提出一种基于节点社会性的喷雾等待路由协议(BSW-based on the sociality of node in opportunistic network,BSW-SN),通过综合分析节点的社会属性、移动模式和对消息的转发效能,进而优化中继节点的选择,并将节点的活跃程度与二元法喷雾等待路由协议(Binary Spray and Wait,BSW)相结合,实现中继节点对消息副本分发数量的自适应功能。BSW-SN协议与经典路由协议进行对比仿真,结果表明,上述协议能够显著地改善消息投递率、消息传输延迟和网络开销。
In the opportunistic network, it is the key to messaging efficiently by selecting the relay node reasona- bly. Most existing opportunistic network routing protocols not only have blindness in selection of the relay nodes, but also are devoid of rational control in the number of copies of the distributed message for relay nodes. A nodal sociality -based routing protocol for opportunistic network BSW-SN （Binary Spray and Wait Based on Social Network） is pro- posed, in which the forwarding efficiency of messages, social attributes and moving track of opportunistic network nodes are taken into account, and accordingly, relay nodes are selected optimally. The activity of the nodes and the improved BSW method are combined tO adaptively controlthe number of message copies for relay nodes. The proposed BSW-SN algorithm is compared with the existing algorithms under different scenarios. Experimental results show that the BSW-SN algorithm has good performance in terms of message delivery rate, message transmission delay and net- work overhead rate.
作者
赵宇红
尹自立
张晓琳
ZHAO Yu-hong;YIN Zi-li;ZHANG Xiao-lin(School of Information Engineering,Inner Mongolia University of Science and Technology,Baotou Inner Mongolia 014010,China)
出处
《计算机仿真》
北大核心
2018年第7期231-236,共6页
Computer Simulation
基金
国家自然科学基金(61662056)
内蒙古自然科学基金(2016MS0608)
关键词
机会网络
路由协议
喷雾等待
社会性
Opportunistic network
Routing protocol
Spray and wait
Sociality
