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节点状态感知的机会网络分布式协作缓存机制

王汝言 杨慧娉 应俊 舒娜

王汝言, 杨慧娉, 应俊, 舒娜. 节点状态感知的机会网络分布式协作缓存机制[J]. 电子与信息学报, 2016, 38(9): 2194-2201. doi: 10.11999/JEIT151374
引用本文: 王汝言, 杨慧娉, 应俊, 舒娜. 节点状态感知的机会网络分布式协作缓存机制[J]. 电子与信息学报, 2016, 38(9): 2194-2201. doi: 10.11999/JEIT151374
WANG Ruyan, YANG Huiping, YING Jun, SHU Na. Node Status Aware Distributed Cooperative CachingMechanism for Opportunistic Networks[J]. Journal of Electronics and Information Technology, 2016, 38(9): 2194-2201. doi: 10.11999/JEIT151374
Citation: WANG Ruyan, YANG Huiping, YING Jun, SHU Na. Node Status Aware Distributed Cooperative CachingMechanism for Opportunistic Networks[J]. Journal of Electronics and Information Technology, 2016, 38(9): 2194-2201. doi: 10.11999/JEIT151374

节点状态感知的机会网络分布式协作缓存机制

doi: 10.11999/JEIT151374
基金项目: 

国家自然科学基金(61371097, 61271261),重庆市自然科学重点基金(CSTC2013JJB40001, CSTC2013JJB40006),重庆市教委项目(KJ1400402),重庆市青年科技人才培养计划(CSTC2014KJRC-QNRC40001)

Node Status Aware Distributed Cooperative CachingMechanism for Opportunistic Networks

Funds: 

The National Natural Science Foundation of China (61371097, 61271261), Chongqing Natural Science Foundation (CSTC2013JJB40001, CSTC2013JJB40006), Chongqing Education Commission Project (KJ1400402), Youth Talents Training Project of Chongqing Science Technology Commission (CSTC2014KJRC-QNRC40001)

  • 摘要: 合理利用节点间的协作关系及相邻节点的缓存资源可有效提高机会网络中节点缓存的利用率与消息的投递率。该文提出一种节点状态感知的分布式协作缓存机制,通过感知消息扩散程度动态估计消息的重要程度,确定消息在缓存操作中的优先级。进而根据节点的活跃度及相对粘度获知给定消息与其目标节点的相遇概率,并针对消息源节点的差异设计分区协作缓存方法,同时在本地缓存处于存满状态时动态选取协作节点,实现本地消息到相邻节点的转移,以达到高效利用缓存资源的目的。结果表明,所提出的协作缓存机制能够有效地利用节点有限的缓存资源,并大幅度地改善消息投递率及节点缓存利用率。
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出版历程
  • 收稿日期:  2015-12-08
  • 修回日期:  2016-04-18
  • 刊出日期:  2016-09-19

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