【摘要】 能量效率是衡量无线传感器网络性能最重要的指标,介绍了无线传感器网络节点结构,分析了无线传感器节点的主要能耗源。讨论动态能量管理和动态电压调整等提高传感节点能效的技术,从物理层、链路层、网络层、传输层等层次论述了无线传感器网络拓扑所采用的能效机制,最后对功率控制技术进行了分析。更多还原

【Abstract】 As energy efficiency is the most important parameter to evaluate the performance of Wireless Sensor Networks,the structure of sensor node is presented,and the energy-consumption sources of the whole Wireless Sensor Networks is discussed. Dynamic power management and dynamic voltage scaling are proposed,which are used to improve the energy efficiency of single node. The energy efficiency mechanisms are discussed,used from physical layer to transport layer.Finally,the power control in Wireless Sensor Networks is analyzed.更多还原