体域网中基于数据区分化服务的路由算法研究  

Based on Differentiated Services of Data to Research Routing Algorithm For Body Area Network

作　　者：严巧凤 章敬雪 苏丹[1] 李章勇[1] 

机构地区：[1]重庆邮电大学光电信息感测与传输技术重庆市重点实验室,重庆400065

出　　处：《生命科学仪器》2015年第1期43-46,22,共5页Life Science Instruments

基　　金：国家自然自然科学基金(61471075);重庆创新青年人才培养项目(CSTC2013kjrcqnrc10001);重庆市应用技术研究重点项目(cstc2012gg-yyjs B10009);重庆高校创新团队建设计划资助

摘　　要：针对体域网的特点和Qo S需求,本文引入了定向扩散(Directed Diffusion,DD)路由协议的思想,通过对DD算法的改进和扩展,提出适合体域网中不同数据类型传输的路由协议。在扩展原DD协议兴趣包格式的基础上,在体域网中引入中继节点,建立梯度,在数据传输阶段,确定数据优先级和队列模型,基于时延、能量二维Qo S参数,确定节点上不同优先级数据的下一跳中继节点。opnet模拟器验证实验结果表明,该路由算法能够提供不同数据业务类型的Qo S保障,并能很好的构建时延较短最优路径,优化了网络能量消耗,适合体域网路由。According to the features and QoS requirements of Body Area Network, a new routing algorithm was addressed, which can adapt to the transmission of different types of data in Body Area Network. The new algorithm was improved and expanded from that of the directed diffusion （Directed Diffusion, DD） routing protocol. Based on the expansion of the original interest packet format of DD protocol, this paper introduces relay nodes and create relevant gradient. In the phase of data transmission, the priority and queue model of data were determined, and based on delay, energy-dimensional QoS parameters, the next-hop relay nodes for different priority data were decided. Opnet simulator verification experiment results show that the new routing algorithm can provide QoS guarantee for different types of data traffic, build optimal paths with short delay and optimize the network energy consumption, the new routing algorithm is suitable for Body Area Network routing.

关 键 词：体域网 路由协议 区分化服务 Qo S 定向扩散协议 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]