无线传感网多层联合差错控制机制性能分析  

Performance Analysis of Multi-Layer Joint Error Control Mechanism in Wireless Sensor Networks

作　　者：王晓梅[1] 颜峻 施里涛[1] 范亮[1] 

机构地区：[1]信息工程大学信息工程学院,河南郑州450002 [2]信息工程大学科研部,河南郑州450001

出　　处：《信息工程大学学报》2011年第6期683-688,共6页Journal of Information Engineering University

基　　金：国家科技重大专项资助项目(2010ZX03006-002-01)

摘　　要：差错控制是无线传感网中的重要问题,基于能量效率和误帧率两个性能指标,对链路层采用ARQ、物理层采用FEC的联合差错控制机制(ARQ+FEC)进行了数学分析和性能仿真。仿真结果表明:信道误比特率大于拐点时,ARQ+FEC是可行的差错控制方案。仿真还显示了有效负载长度及纠错能力对于ARQ+FEC性能的影响。Error control is an important issue in wireless sensor networks.This paper presents comprehensive mathematical analysis and simulation of a multi-layer joint error control mechanism in wireless sensor networks,in terms of energy efficiency and error frame ratio.This multi-layer joint error control mechanism combines ARQ in the data link layer with FEC in the physical layer（short as ARQ＋FEC）.Simulation results show that ARQ＋FEC is a feasible error control mechanism when channel error probability exceeds the inflexion.Simulations also reflect the influence of the payload length and the error correction ability of the channel code.

关 键 词：无线传感网 差错控制 多层联合 能效 

分 类 号：TN92[电子电信—通信与信息系统]