摘要： 针对如何有效利用机会网络中节点间的协作关系以及节点有限的缓存资源，避免拥塞和提升数据传输性能的问题，提出一种机会网络协作缓存优化策略——HMP-Cache。该策略根据节点不同运动状态的特点，利用目标地址匹配标准选择协作缓存节点，采用同步Cache数据表达到局部域内缓存信息共享的目的。仿真实验结果表明，该策略能够有效控制数据访问的网络开销，降低网络热点数据访问延迟。

关键词: 机会网络, 协作缓存策略, 网络开销

Abstract: Aiming at the problem of how to use the cooperative relations and limited cache resources of nodes to avoid network traffic and improve communicating performance, this paper proposes an opportunistic network cooperative caching policy, which is referred as HMP-Cache. According to the nodes movement characteristics, the standard of target address matching is used to choose cooperative caching nodes. Caching information can be shared by synchronization of caching table in local region. Simulation results show that the policy can control the network cost effectively and the network data latency is reduced.

Key words: opportunistic network, cooperative caching policy, network cost

中图分类号: 

• TP393