一种基于功率控制的WSN自适应能量高效传输模式研究

无线传感器网络的能耗决定了网络的生存时间。本文提出了一种基于功率控制WSN自适应能量高效传输模式。分析了在功率控制方案中传输功率损耗与温度之间的关系。使用开环控制去补偿由于温度引起的链路质量的变化。通过结合开环温度感知的补偿与闭环反馈控制,可以在无线传感网络中显著降低传输功率控制的开销。仿真结果表明,与传统的在单一地域最大化增强发送功率来补偿温度的变化相比,该方案能够有效地适应传输链路质量的变化,并且有较少的控制报文开销。

An Energy-efficient Adaptive Scheme for Transmission in WSN Based Power Control

The energy consumption of wireless sensor networks determines the lifetime of the network. This paper proposed an energy-efficient adaptive scheme for transmission in WSN based power control. After analyzing the relationship between the transmission power loss and the temperature with the scheme, the paper used the open loop control to compensate due to the change of temperature caused by the link quality. Through a combination of open loop temperature compensation and closed loop feedback control of perception, the scheme can significantly reduce the transmission power control in wireless sensor network overhead. Simulation results showed that propose scheme effectively adapts transmission Power level to changing link quality with less control packets overhead and energy consumption as compared to classical approach with single region in which maximum transmitter Power level assigned to compensate temperature variation.