无线传感器网络的节能研究

Research of Energy for Wireless Sensor Networks

无线传感器网络协议栈由物理、数据链路、网络、传输和应用五层组成。物理层节能,可通过降低节点发射功率实现。数据链路层中的媒体接入控制是该层的主导地位,其节能可基于CSMA和TDMA/FDMA的媒体接入协议考虑。网络层可利用数据聚合来提高能量和带宽的利用率,同时需精细资源管理。传输层和应用层则可分别通过简化传输协议和各应用功能达到节能。

The protocol stack of wireless sensor networks is composed of physical level, logical link control level, network level, transport level and application levels. Physical level can implement power saving by reducing transmitting power. Media access control, is dominant in logical link control level, considers that energy saving is based on CSMA and TDMA/FDMA protocols. Providing using ratio of energy and band is made by data converging and fine granularity resource management in network level. Transport level and application level can save energy by predigesting transport protocol and various applications. save