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泛在末梢环境可靠性预测的服务发现选择协议

DOI: 10.13190/j.jbupt.2015.增.007, PP. 28-32

Keywords: 服务发现与选择协议,服务可靠性,移动性预测

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Abstract:

为提高服务查找成功率以及降低服务中断率,提出了在泛在末梢环境下基于可靠性预测的服务发现与选择协议(RPD&S).通过建立节点移动模型,预测节点的移动性及节点有效时间,计算服务提供节点及路径的可靠性,选取可靠性最高的服务提供节点及路径,同时采用双路径机制增强路径可靠性.仿真结果表明,RPD&S的服务查找失败率比跨层的服务发现协议低,服务执行中断率比基于时延的服务选择协议低.RPD&S能有效解决服务发现与选择中的问题,提高用户体验.

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