摘要
提出了一种基于功率控制的无线传感器网络MAC协议,根据节点接收阈值,计算出节点发送最优功率,在根本上减小发送功率从而节省节点能量。为了减少节点间的碰撞,引入了自适应调整竞争窗口和快速退避机制,减少节点空闲时间,从而进一步减少节点耗能。仿真结果显示在能量和吞吐量上都有显著提高。
This paper presented a basing on power control wireless sensor networks MAC protocol. This protocol used the node receive threshold value, then calculated the optimize transmission power. It could ultimately reduce node consume energy. In order to reduce the collision between node and the duration of the idle listening time, it added self-adaptive contention window size and fast back off scheme to make further save node energy. The result shows that the new MAC reduces the node energy consume and improves the throughput.
出处
《计算机应用研究》
CSCD
北大核心
2010年第5期1931-1934,共4页
Application Research of Computers
关键词
无线传感器网络
媒质接入控制
能量效率
功率控制
wireless sensor networks（WSN）
media access control（MAC）
energy efficiency
power control
