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Optimization Research on Adaptive Back off Tuning Medium Access Control Algorithm

LIU Yun,CHEN Changkai,CUI Ziru   

  1. (Faculty of Information Engineering and Automation,Kunming University of Science and Technology,Kunming 650500,China)
  • Received:2016-01-15 Online:2017-01-15 Published:2017-01-13

自适应退避调整介质访问控制算法的优化研究

刘云,陈昌凯,崔自如   

  1. (昆明理工大学 信息工程与自动化学院,昆明 650500)
  • 作者简介:刘云(1973—),男,副教授,主研方向为无线通信;陈昌凯(通信作者)、崔自如,硕士研究生。
  • 基金资助:
    国家自然科学基金(61262040)。

Abstract: Decreasing energy consumption of nodes,reducing network latency and improving network throughput are needed to make the entire network continue to work efficiently in Wireless Sensor Network(WSN).Therefore,an Adaptive Back Off Tuning Message Authentication Code (ABOTMAC) algorithm is proposed.Each node uses a fixed transmission attempt rate and tunes its back off window size dynamically based on the current network status,and thus tunes the slot of the successful transmission of a frame length.Simulation results show that compared with Model-based Frame Scheduling(MFS) algorithm and Asymptotically Optimal Back off(AOB) algorithm,the proposed algorithm can reduce network latency and improve throughput of network.

Key words: adaptive back off tuning, medium access control, network latency, network throughput, energy consumption, Wireless Sensor Network(WSN)

摘要: 在无线传感网中,为了使整个网络持续高效地工作,需要降低节点能耗、减少网络时延以及提高网络吞吐量。为此,提出一种自适应退避调整消息认证码算法,每个节点根据当前网络状态采用一个固定传输尝试率并且动态调整其退避窗口大小,从而对成功传输一帧长度的时隙进行调整。仿真结果表明,与基于模型的帧调度算法和渐近最佳退避算法相比,提出的算法可有效减少网络时延,提高网络吞吐量。

关键词: 自适应退避调整, 介质访问控制, 网络时延, 网络吞吐量, 能耗, 无线传感网

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