泛在末梢环境下的动态业务恢复机制  

A Dynamic Service Recovery Mechanism in Ubiquitous Stub Environment

作　　者：牛丹梅[1,2] 芮兰兰[1] 黄豪球[1] 邱雪松[1] 

机构地区：[1]北京邮电大学网络与交换技术国家重点实验室,北京100876 [2]河南科技大学信息工程学院,河南洛阳471023

出　　处：《北京邮电大学学报》2016年第B06期42-45,共4页Journal of Beijing University of Posts and Telecommunications

基　　金：国家自然科学基金创新研究群体科学基金(61121061);国家自然科学基金项目(61302078;61372108;61370220);北京高等学校青年英才计划项目(YETP0476);河南省高校科技创新团队支持计划项目(15IRTSTHN010)

摘　　要：泛在末梢环境下,当各移动终端为用户提供业务时,终端的移动性或电量有限性会导致业务路径发生故障.为了快速高效地为用户恢复业务,提高业务传输的可靠性,提出了动态业务恢复机制,可灵活地维护在业务传输路径上的数据,在数据传输失败时,上游恢复点为下游恢复点直接恢复数据.仿真实验结果证明,该机制能够有效降低业务请求失败率,缩短执行时间.When the mobile devices provide services for a user in ubiquitous stub environment,some service transmission paths will be out of work because of device movement or limited power. The main purpose of the article is to seek a way for quick service recovery and reliable service transmission. This author put forward a dynamic service recovery mechanism which can maintain the data in the service transmission path flexibly. When the service transmission fails,the upstream recovery point directly resends the service data to its downstream recovery point. Simulations show that this mechanism can effectively reduce the request failure probability and the execution time.

关 键 词：泛在末梢环境 恢复 传输 分组 

分 类 号：TN911.22[电子电信—通信与信息系统]