基于LS-RTS机制和功率可调路由的跨层协议  

Cross-Layer Protocol Based on LS-RTS Mechanism and Power Adjustable Routing

作　　者：朱圣烽 ZHU Shengfeng(Department of Math and Computer Science HanJiang Normal University,Shiyan Hubei 442000,China)

机构地区：[1]汉江师范学院数学与计算机科学学院,湖北十堰442000

出　　处：《传感技术学报》2020年第3期471-478,共8页Chinese Journal of Sensors and Actuators

基　　金：湖北省自然科学基金项目(2018CFB721)。

摘　　要：为了降低线型无线传感网络能耗和传输延时,在改进CLM协议跨层方法的基础上融合其他经典机制,提出了一种适应线型拓扑结构的跨层协议。协议删除中继路由判决以优化原通信判决门限;对节点统一标记链编号形成新LS-RTS机制以提高链路传输率;精简时隙单元和多跳传输时序降低数据传输时延;并引入功率可调路由减少节点路由计算负担以此降低节点能耗。仿真结果表明,相较于CLM和CLR-DCE等两种跨层协议,本文提出的I-CLM跨层协议在降低传输时延的同时整体能耗至少降低了18.75%和7.32%,一定程度上延长了网络生存时间。In order to reduce the energy consumption and transmission delay of the linear wireless sensor network,a cross-layer protocol adapted to the linear topology was proposed by integrating other classical mechanisms which were on the basis of improving the cross-layer method of the CLM protocol.The relay routing decision was deleted by the protocol in order to optimize the original communication decision threshold;a new LS-RTS mechanism was formed for nodes to mark the chain number uniformly in order to improve the link transmission rate;time slot units and multi-hop transmission timing was streamline to reduce data transmission delays;adjustable power routing was introduced to reduce the node’s routing calculation load,thereby lowering node energy consumption.Simulation results show that compared with two cross-layer protocols such as CLM and CLR-DCE,I-CLM cross-layer protocol proposed in this article reduces the transmission delay and cuts down the overall energy consumption by at least 18.75%and 7.32%,which extends the network survival time to a certain degree.

关 键 词：无线传感网络 跨层协议 CLM协议 通信判决门限 LS-RTS机制 功率可调路由 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]