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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
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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.
作者 王晓梅 颜峻 施里涛 范亮
机构地区 信息工程大学信息工程学院 信息工程大学科研部
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)
关键词 无线传感网 差错控制 多层联合 能效 wireless sensor networks error control multi-layer joint energy efficiency
分类号 TN92 [电子电信—通信与信息系统]
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参考文献6

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共引文献23

信息工程大学学报
2011年 第6期

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