移动环境中语义缓存一致性维护的Agent方法  

Research on Semantic Cache Consistency Maintenance in Mobile Environments Based on Agent Method

作　　者：梁茹冰[1] 刘琼[2] 

机构地区：[1]华南农业大学理学院,广州510642 [2]华南理工大学软件学院,广州510006

出　　处：《北京邮电大学学报》2014年第3期67-72,共6页Journal of Beijing University of Posts and Telecommunications

基　　金：国家自然科学基金项目(61171141)

摘　　要：针对当前语义缓存一致性维护策略难以适应移动终端频繁切换、断接的问题,提出使用移动代理技术来维护语义缓存一致性的方法.首先,基于SMC-架构设计移动代理MSSAg和MTAg;其次,提出无小区切换和有小区切换2种情况下进行缓存一致性维护的方法.实验结果表明,所提方法在减少缓存一致性恢复时间和降低网络通信量方面较其他算法有明显的改善,可以有效地在频繁断接、移动和切换的环境中进行语义缓存一致性维护.Current semantic cache consistent maintenance strategy is difficult to adapt to frequent mobility, hand off and disconnect network environments. The article propose a new semantic cache scheme using mobile agent technology to maintain the cache consistency. Firstly, mobile agents MSSAg and MTAg are designed based on SMC-architecture. Secondly, the process of maintain cache consistency is discussed in two cases： without hand-off and with hand-off. Experiments show that the proposed cache maintenance method could reduce cache consistency restore time and save data communication cost effectively. It is particularly efficient for using in frequent mobility, hand off and disconnect network environments.

关 键 词：移动计算 语义缓存 切换 一致性维护 移动代理 

分 类 号：TP311[自动化与计算机技术—计算机软件与理论]