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计算机工程 ›› 2009, Vol. 35 ›› Issue (13): 108-110. doi: 10.3969/j.issn.1000-3428.2009.13.037

• 网络与通信 • 上一篇    下一篇

发射功率可变的无线传感器网络能量级别选取

王建明   

  1. (湖南商学院计算机与电子工程系,长沙 410205)
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2009-07-05 发布日期:2009-07-05

Energy Level Selection for Wireless Sensor Network with Variable Transmit Power

WANG Jian-ming   

  1. (Department of Computer and Electronic Engineering, Hunan Business College, Changsha 410205)
  • Received:1900-01-01 Revised:1900-01-01 Online:2009-07-05 Published:2009-07-05

摘要: 针对一种无线传感器网络节点的发射功率可变,其最大发射半径是最小能量发射半径r的k倍,即kr的传感器网络,研究节点最佳能量发射半径ir的设计问题。通过数学分析得到能量消耗公式,给出最优的能量发射级别k的计算方法。采用优化的发射功率相比采用固定功率的发射方法能够大幅度地提高网络寿命,对传感器网络的优化具有较好的指导作用。

关键词: 无线传感器网络, 移动基站, 网络优化, 能量消耗均衡, 网络寿命

Abstract: In this paper, a wireless sensor network node transmission power is variable, whose radius of maximum emission energy is k times of the smallest radius r, namely the kr wireless sensor network. The best suitable energy radius of ir is studied comprehensive. Through rigorous mathematical analysis, the energy consumption formula is given, and the compute method of optimal energy emission level k is gained. The optimization transmit power can greatly improve network life compared with transmit power, which plays the important instructing role for wireless sensor network.

Key words: wireless sensor network, mobile base station, network optimization, energy consumption balance, network life

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