摘要
为了筛选出转发性能更优的中继节点,提高机会网络的消息投递成功率并减少消息传输时间,提出一种基于均匀分布的机会网络消息转发策略。该策略将携带消息的节点尽可能均匀地分布在网络中,使相同大小的空间内具有相同节点密度和携带消息节点个数,增大携带消息节点同目标节点相遇的概率。实验结果表明,与现有的消息转发策略相比,基于均匀分布的消息转发策略所需历史相遇数据较简单,算法复杂度低,对节点的缓存和能量要求不高,能有效改善机会网络的消息传输性能。
A new message forwarding strategy in opportunistic network is proposed based on uniform distribution router,which is to improve the performance of opportunistic networks of delivering messages,reduce transmission time of messages and screen out the better relay node of forwarding performance. This strategy distributed the nodes with message in the network as evenly as possible so that space of the same size of the same density of nodes with message,increasing the data delivery probability from the nodes with message to the destination node. Simulation results show that compared with existing algorithms,this strategy needs simpler history data,besides,with low algorithm complexity and low demand of nodes cache and energy,and it can improve the message transmission performance in opportunistic network.
出处
《计算机应用与软件》
2017年第2期164-168,共5页
Computer Applications and Software
基金
国家科技支撑计划项目(2013BAH19F01)
关键词
机会网络
均匀分布
消息转发
Opportunistic network
Uniform distribution
Message forwarding
