基于跨层设计与优化的无线传感网络数据传输算法  

Data Transmission Algorithm in Wireless Sensor Networks Based on Cross-layer Design and Optimization

作　　者：陈志国 滕桂法[1] CHEN Zhi-guo;TENG Gui-fa(College of Information Science and Technology,Agricultural University of Hebei,Baoding 071000,China)

机构地区：[1]河北农业大学信息科学技术学院

出　　处：《科学技术与工程》2019年第16期245-250,共6页Science Technology and Engineering

基　　金：河北省科学技术厅项目(9412016Y0391)资助

摘　　要：针对无线传感网络(wireless sensor networks,WSNs)的多对一通信,提出了路由和媒体接入协议(medium access control,MAC)的跨层设计与优化的数据传输算法,记为J-R-MAC(joint routing and medium access control),进而减少传输时延。J-R-MAC算法引用新的周期结构,此周期结构允许k个节点在同一个周期内安排数据包传输;并给节点提供k次机会传输数据包。同时,J-R-MAC算法将网络内所有节点划分k个不相交集;进而减少节点的空闲监听时间。此外,J-R-MAC引用特殊序列作为地址,减少控制包尺寸;进而降低能耗。仿真数据表明,与同类的协议相比,提出的J-R-MAC算法有效地降低了端到端传输时延;并提高了数据包传递率。In a many-to-one communication paradigm for wireless sensor networks (WSNs),the joint routing and MAC Protocol was proposed,which was named as joint routing and medium access control (J-R-MAC).In J-R-MAC,a novel cycle structure was used,and it allowed up to chances to a k nodes was allawed to schedule data packet transmission in the same cycle.k node was allowed to succeed in data packet transmission scheduling in a cycle.The network nodes was divided into k disjoint sets to reduce the idle listening period of a node in a cycle.The energy consumption was reduced in periodic broadcast of such information by making a particular sequence of information usable as the address of the node.

关 键 词：无线传感网络 媒体接入协议 路由 周期结构 传输时延 

分 类 号：TP393.01[自动化与计算机技术—计算机应用技术]