An Efficient Transmission Power Control Algorithm in Wireless Sensor Networks
In wireless sensor networks (WSNs), sensor nodes are typically battery powered and energy consumption is critical. In this paper we present an efficient transmission power control algorithm based on the RTS/CTS mechanism in SMAC. The main contribution of our work is to introduce a low-cost power controlled transmission of RTS, CTS, DATA, and ACK frames while preserving the collision and overhearing avoidance properties of SMAC protocol. Our proposed algorithm is simulated and the simulation result shows that our algorithm can reduce the energy consumption by 40％ - 60％ comparing to the conventional SMAC protocol, and outperform the LMA (local mean algorithm) by 20％ - 30％.
energy efficiency wireless sensor network transmission power control network lifetime
Jian Xiao Fengqi Yu
Department of Integrated Electronics Shenzhen Institute of Advanced Technology, CAS Shenzhen, 518067 Department of Integrated Electronics Shenzhen Institute of Advanced Technology, CAS Shenzhen, 518067
国际会议
上海
英文
2007-09-21（万方平台首次上网日期，不代表论文的发表时间）