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 (1): 77-81.doi: 10.13190/jbupt.201301.77.qinzhch

• 研究报告 • 上一篇    下一篇

采用免疫遗传的无线传感器网络波束成形机制

秦智超,周正,赵小川   

  1. 泛网无线通信教育部重点实验室(北京邮电大学), 北京 100876
  • 收稿日期:2012-07-17 修回日期:2012-09-04 出版日期:2013-02-28 发布日期:2013-01-19
  • 通讯作者: 秦智超 E-mail:qinzhichao@bupt.edu.cn
  • 作者简介:秦智超(1981-),男,博士生,Email:qinzhichao@bupt.edu.cn 周正(1945-),男,教授,博士生导师
  • 基金资助:

    国家科技重大专项项目(2009zx03006-009);国家自然科学基金项目(60902046);韩国知识经济部仁荷大学ITRC基金项目(NIPA-2011-C1090-1111-0007)

Beamforming Scheme Based on Immune Genetic Algorithm for Wireless Sensor Networks

QIN Zhi-chao, ZHOU Zheng, ZHAO Xiao-chuan   

  1. Key Laboratory of Universal Wireless Communications (Beijing University of Posts and Telecommunications), Ministry of Education, Beijing 100876, China
  • Received:2012-07-17 Revised:2012-09-04 Online:2013-02-28 Published:2013-01-19
  • Contact: Zhi-Chao QIN E-mail:qinzhichao@bupt.edu.cn
  • Supported by:

    Important National Science and Technology Specific Projects

摘要:

针对无线传感器网络中单个节点能量和通信距离有限的特点,提出了一种基于免疫遗传的波束成形机制.首先分析了存在相位差的情况下的节点发射系数和选取节点数对系统能耗的影响;然后根据节点的剩余能量和相位结合旋转因子来循环选择参与发射的节点,并引入免疫遗传算法对各节点的发射系数进行调整.理论分析和仿真结果表明,该机制有效均衡了节点间的能耗,延长了网络寿命.

关键词: 无线传感器网络, 波束成形, 能量均衡

Abstract:

Considering the limitation of communication capacity and energy for nodes in wireless sensor networks, a beamforming scheme based on immune genetic algorithm is proposed. First,the impact of the transmission coefficients and the number of selected nodes whose arrival phase have difference on the network energy consumption is analyzed. Then,the nodes participating in transmission are selected according to their residual energy and arrival phase combined with rotated factor and their transmission coefficients are adjusted using immune genetic algorithm. Simulation shows that the energy consumption among the nodes can be balanced and the network lifetime can be prolonged effectively.

Key words: wireless sensor networks, beamforming, energy balance

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