灌区无线传感器网络E-RMAC协议的研究与仿真  

Research and simulation on E-RMAC protocol for wireless sensor networks in irrigation area

作　　者：王永涛[1] 黄翠 黄维[1] 梁俐 陈跃威 WANG Yongtao;HUANG Cui;HUANG Wei;LIANG Li;CHEN Yuewei(Water Resources Research Institute of Guizhou Province,Guiyang 550002,China;Guizhou Agricultural Vocational College,Guiyang 5514000,China;Guizhou Dongfeng Automation Technology Co.,Ltd.,Guiyang 550002,China)

机构地区：[1]贵州省水利科学研究院,贵州贵阳550002 [2]贵州农业职业学院,贵州贵阳551400 [3]贵州东峰自动化科技有限公司,贵州贵阳550002

出　　处：《人民长江》2019年第5期205-210,共6页Yangtze River

基　　金：贵州省科技厅项目"贵州山地现代高效节水灌溉技术集成服务企业行动计划"(黔科合平台人才[2016]5717);"贵州现代山地特色高效农业水肥精准智能调控系统研发与示范"(黔科合支撑[2017]2596);"现代山地农业智能灌溉关键技术研发与示范"(黔科合重大专项字[2016]3001号);"基于农作物灌溉制度的贵州喀斯特山区高效精准灌溉系统应用及推广"(黔科合成果[2018]4501号)

摘　　要：在无线传感器网络RMAC协议的基础上,针对RMAC协议在数据时段的利用率不可靠、帧传输丢失处理的低效缺陷,以及不可避免存在的能量消耗和传输延迟等方面的不足,提出了新的单周期高效多跳传输的E-RMAC(Efficiency-RMAC)协议。该协议采用了重传机制,在信道预约阶段采用了单次重传机制,在数据包发送阶段采用了多次重传机制。最后,应用NS2平台进行仿真。仿真结果表明:在传输时延分析、网络吞吐量分析等方面,改进后的E-RMAC协议与RMAC协议相比有所提高,在大网络、多节点的应用中能大大降低布网成本,实现经济性和实效性。Based on the RMAC protocol for wireless sensor networks, this paper aims at the deficiency of RMAC protocol such as unreliable utilization of data time-interval, low efficiency of frame transmission loss processing, inevitable energy consumption and transmission delay, etc. A new single-cycle efficient multi-hop transmission (E-RMAC) protocol has been proposed, which adopts retransmission mechanism, single retransmission mechanism in channel reservation phase and multiple retransmission mechanism in packet transmission phase. Finally, the NS2 platform is used for simulation. The results show that the improved E-RMAC protocol is better than the RMAC protocol in terms of transmission delay analysis, network throughput analysis and so on. It can greatly reduce the cost of network placement in large networks and multi-node applications, and realize the economic effectiveness of the application.

关 键 词：无线传感器网络 改进型 E-RMAC 性能仿真分析 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]