通信学报 ›› 2013, Vol. 34 ›› Issue (10): 9-16.doi: 10.3969/j.issn.1000-436x.2013.10.002

• 学术论文 • 上一篇    下一篇

低占空比、低碰撞的异步无线传感器网络MAC协议

李哲涛1,2,3,朱更明4(),王志强4,裴廷睿1,3,潘高峰5   

  1. 1 湘潭大学 信息工程学院,湖南 湘潭 411105
    2 国防科学技术大学 计算机学院,湖南 长沙410073
    3 湘潭大学 智能计算与信息处理教育部重点实验室,湖南 湘潭 411105
    4 湖南科技大学 计算机科学与工程学院,湖南 湘潭 411201
    5 西南大学 电子信息工程学院,重庆 400715
  • 出版日期:2013-10-25 发布日期:2017-08-10
  • 基金资助:
    国家自然科学基金资助项目;国家自然科学基金资助项目;国家自然科学基金资助项目;国家自然科学基金资助项目;国家自然科学基金资助项目;湖南省自然科学基金委员会与湘潭市政府自然科学联合基金资助项目;湖南省教育厅基金资助项目;重庆市自然科学基金资助项目;中央高校业务基金资助项目;湖南省重点学科建设基金资助项目

Low duty cycle and low collision asynchronous MAC protocol for wireless sensor network

Zhe-tao LI1,2,3,Geng-ming ZHU4(),Zhi-qiang WANG4,Ting-rui PEI1,3,Gao-feng PAN5   

  1. 1 College of Information Engineering,Xiangtan Unive ity,Xiangtan 411105,China
    2 School of Computer,National University of Defense Technology,Changsha 410073,China
    3 Key Laboratory of Intelligent Computing & Information,Ministry of Education,Xiangtan University,Xiangtan 411105,China
    4 School of Computer Science & Engineering,Hunan University of Science and Technology,Xiangtan 411201,China
    5 School of Computer & Information Science,Southwest University,Chongqing 400715,China
  • Online:2013-10-25 Published:2017-08-10
  • Supported by:
    The National Natural Science Foundation of China;The National Natural Science Foundation of China;The National Natural Science Foundation of China;The National Natural Science Foundation of China;The National Natural Science Foundation of China;Union Natural Science Foundation of Hunan Provincial and Xiangtan Government;The Fund of Educational Commis-sion of Hunan Province;The Natural Science Foundation Project of CQ CSTC;The Fundamental Research Funds for the Central Universities;The Construct Program of the Key Discipline in Hunan Province

摘要:

提高信道监听质量是降低能量消耗和提高通信效率的有效方法。提出了一种低占空比、低碰撞的PB-MAC(predict-base MAC)协议。通过发送节点精确预测接收节点的唤醒时间,降低占空比;采用基于预测的重建连接机制和数据重传机制,有效地避免碰撞和实现高效重传。OMNet++仿真实验结果表明:在50节点随机网络中,PB-MAC 的平均占空比、发送消息耗能和平均碰撞次数分别比RI-MAC 少68.60%、24.75%、68.05%,比X-MAC少64.39%、64.05%、70.54%。同时,在网格网络中PB-MAC的性能也优于RI-MAC和X-MAC。

关键词: 无线传感器网络, 低占空比, 伪随机, MAC协议

Abstract:

Improving the quality of channel listening is an effective way to reduce energy consumption and improve communication efficiency.PB-MAC(predict-base MAC),a novel low duty cycle and low collision asynchronous MAC protocol was presented.PB-MAC lowers sensor duty cycle by enabling senders to predict receiver wakeup times.An ef-ficient prediction-based reconnection and retransmission mechanism was introduced to achieve low collisions and high efficiency retransmission.Comparison of PB-MAC on OMNet++ with RI-MAC and X-MAC was evaluated.Evaluated on scenarios with 50 random disposed nodes,the average duty cycle,consumed energy and average collisions for PB-MAC is 68.60%,24.75% and 68.05% less than those of RI-MAC and 64.39%,64.05% and 70.54% less than those of X-MAC respectively.In grid network,PB-MAC also outperforms RI-MAC and X-MAC protocols.

Key words: wireless sensor network, low duty cycle, pseudo random, MAC protocol

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