北京邮电大学学报

  • EI核心期刊

北京邮电大学学报 ›› 2013, Vol. 36 ›› Issue (2): 102-106.doi: 10.13190/jbupt.201302.102.jiny

• 研究报告 • 上一篇    下一篇

基于QoS和距离感知的自适应协作差错控制机制

靳勇1,白光伟2,3,常晋义1   

  1. 1. 常熟理工学院 计算机科学与工程学院, 江苏 常熟 215500; 2. 南京工业大学 计算机科学与技术系, 南京 210009; 3. 计算机软件新技术国家重点实验室(南京大学),南京 210093
  • 收稿日期:2012-09-12 修回日期:2012-11-21 出版日期:2013-04-30 发布日期:2013-03-25
  • 通讯作者: 靳勇 E-mail:njutjinyong@yahoo.com.cn
  • 作者简介:靳勇(1981-),男,讲师,E-mail:jinyong@cslg.cn
  • 基金资助:

    国家自然科学基金项目(60673185,61073197);江苏省自然科学基金项目(BK2010548);江苏省科技支撑计划(工业)项目(BE2011186);南京大学计算机软件新技术国家重点实验室开放课题(KFKT2010B08)

An Adaptive Cooperative Error Control Mechanism Based on QoS and Distance Aware

JIN Yong1, BAI Guang-wei2,3, CHANG Jin-yi1   

  1. 1. School of Computer Science and Engineering, Changshu Institute of Technology, Changshu 215500, China;<br>2. Department of Computer Science and Technology, Nanjing University of Technology, Nanjing 210009, China;<br>3. State Key Laboratory of Novel Software Technology (Nanjing University), Nanjing 210093, China
  • Received:2012-09-12 Revised:2012-11-21 Online:2013-04-30 Published:2013-03-25

摘要:

提出一种基于跨层交互的自适应协作差错控制策略,包括距离感知的中继选择和支持区分服务的服务质量(QoS)保障机制. 链路层采用混合自动重传请求(HARQ),物理层采用自动重传请求(ARQ),根据数据包传输特性建立马尔可夫链模型,感知性能进行中继选择;根据应用业务的多样性QoS需求,确定最佳差错控制方案. 仿真实验和数学分析结果表明,所提策略与传统ARQ和HARQ、协作ARQ和HARQ相比,在确保无线传感器网络传输高可靠性的同时缩短了时延并获得了较高吞吐率和能量效率.

关键词: 无线传感器网络, 协作通信, 跨层设计, 距离感知, 自动请求重传, 服务质量保障

Abstract:

The distance-aware adaptive relay selection and quality of service (QoS) support algorithm are proposed based on performance of wireless communication. The adaptive cooperative error control mechanism based on cross-layer of hybrid automatic repeat request and automatic repeat request (HARQ-ARQ) is provided. A Markov chain model is built for analyzing the performance of wireless communication according to three different states of the data packets. In the mechanism, ARQ is used at the physical layer and hybrid ARQ is used at the data link layer. Cooperative transmission over multiple relays is proposed based on adaptive relay selection according to the performance between the sending sensor and receiving sensor. Analyses and simulation show that, compared to the traditional ARQ, traditional HARQ, cooperative ARQ and hybrid ARQ respectively, the proposed mechanism could have a better performance in terms of saturation throughput rate, reliability and energy efficiency.

Key words: wireless sensor networks, cooperative communication, cross-layer design, distance aware, automatic repeat request, quality of service supported

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