摘要
功率控制是在通信的过程中对发射机发射信号的功率大小进行实时监督和调整,使它满足一定网络连通性要求的技术。无线传感器网络是一种能量受限型网络,功率控制技术正是降低其能量消耗的一种重要手段。无线传感器网络的功率控制是一个跨层设计的问题,目前的研究主要集中在网络层和数据链路层。功率控制会对网络的能量消耗、网络的连接度以及信道容量等产生决定性的影响。
Power control is a technique for monitoring and adjusting signal power of transmitter in real time and makes it meet certain requirements of network connectivity in wireless communication systems. Power control is just an important measuring means to reduce energy consumption since Wireless Sensor Networks （WSNs） are energy restricted. Power control in WSN is a cross-layer design technique of networks. Currently, most research efforts in power control are focused on network layer and data link layer. Additionally, power control can influence performances of networks significantly including energy consumption, connectivity and channel capacity,
出处
《传感器世界》
2007年第1期34-37,41,共5页
Sensor World
基金
西南科技大学引进人才启动基金(编号:ZK043100)
国防基础科研项目(编号:A3120061155)
关键词
无线传感器网络
功率控制
跨层协议设计
无线通信
wireless sensor network
power control
cross-layer protocol design
wireless communication
