摘要
提出了一种基于功率控制机制的无线传感器网络MAC协议Distance Prediction PowerControl MAC(DPPC-MAC)。DPPC-MAC协议基于目前十分成熟的SMAC协议[1-2],引入了功率控制机制以降低数据包发送时的能耗,并且提出了一种新的通过功率预测距离来解决暴露终端和隐藏终端的方法。仿真结果表明,DPPC-MAC能有效降低网络能耗,同时吞吐量性能也得到了一定的改善。
In this paper, a power control MAC protocol (DPPC-MAC) for wireless sensor networks is proposed. The new protocol is based on SMAC, and introduces power control mechanism for energy saving. The new approach proposed by this paper is distance prediction algorithm for determining the transmission power to solve hidden and exposure terminals problem. Simulation results show that DPPC-MAC can provide better energy efficiency and throughput than current important protocols.
出处
《信息技术》
2008年第7期9-12,共4页
Information Technology
基金
国家自然科学基金资助项目(60372076)
上海市科委重大科技攻关项目(05dz15004)