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《Journal of Changsha University》 2013-05
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Design of a Caching Replacement Policy Based on Cooperative Trust for Ubiquitous Computing Networks

YE Hui;LIU Huafu;WANG Jiangtao;Department of Computer Science and Technology,Changsha University;School of Information Science and Engineering,Central South University;  
A great amount of data flow with nodes movement in ubiquitous computing network when wireless devices are carried by humans.The nodes have the problem of how to choose the latest or the most valuable data to cache.Therefore,the design of corresponding cache data replacement policy is an important issue.In this paper,a cache data replacement policy that uses cooperative trust relationship of node is proposed referred as CTRP.CTRP chooses the data item to replace based on the correlation between the nodes and the data item.It utilizes the trust degree and the probability of destination-matching to judge the correlation.Moreover,the visit and update frequency ratio is used to design the standard of cache data replacement.The simulation results show that our policy can improve the cache hit ratio of data and reduce the data latency of remote data access effectively.
【Fund】: 湖南省自然科学基金(批准号:11jj6059)资助项目;; 长沙市科技计划项目(批准号:K110717-11)
【CateGory Index】: TP393.0
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【Citations】
Chinese Journal Full-text Database 2 Hits
1 Niu Xinzheng,She Kun,Qin Ke,and Zhou Mingtian(School of Computing Science and Engineering,University of Electronic Science and Technology of China,Chengdu 610054);A Cooperative Caching Optimized Policy of Mobile Peer-to-Peer Networks[J];Journal of Computer Research and Development;2008-04
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【Co-citations】
Chinese Journal Full-text Database 10 Hits
1 LIU Qiao-shou,ZHOU Jian-er,ZHANG Pu-ning(Special Research Centre for Optical Internet and Wireless Information Networks,Chongqing University of Posts and Telecommunications,Chongqing 400065,P.R.China);Adaptive cache management method for opportunistic network based on number of message copies[J];Journal of Chongqing University of Posts and Telecommunications(Natural Science Edition);2011-04
2 XU Wan-jing1,2; CHEN Xiao-lin2; SUN Jian-yong2(1. School of Computer Science,Xi’an Electronic and Science University,Xian 710071,China;2. Department of Compute Science,Chuxiong Normal University,Chuxiong 675000,China );Ad-Hoc Network Based Mobile P2P Systems Cache Consistency Maintenance Algorithm[J];Journal of Chuxiong Normal University;2009-03
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【Secondary Citations】
Chinese Journal Full-text Database 4 Hits
1 YU Long jiang,PENG Xi yuan,PENG Yu (Dept.of Automatic Test and Control,Harbin Institute of Technology,Harbin,Heilongjiang 150001,China);A Test Set Optimization Method Based on Ant Algorithm[J];Acta Electronica Sinica;2003-08
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