无线传感器网络媒质接入控制协议的研究

Wireless Sensor Network Media Access Control Protocols

针对现有的无线传感器网络单信道媒介接入控制协议,存在信道利用率低、信号冲突等问题,提出一种新颖的多信道媒质接入控制协议(MCMAC);该协议引入协调节点和时隙分配的方法,并充分利用硬件通信频率可调的特点,实现了无竞争的多信道媒质接入控制;仿真结果表明,采用该协议可以在有效提高信道利用率的同时,提高网络吞吐量,降低信号冲突和能量消耗,延长网络寿命。

Wireless sensor networks for existing single--channel media access control protocol, there is low utilization rate of the chan- nel, signal conflicts, proposed a novel multi--channel medium access control protocol （MCMAC）. The agreement to introduce coordination node and time slot allocation, and take advantage of hardware features adjustable communication frequencies to achieve a non--competitive multi--channel medium access control. Simulation results show that this protocol can effectively improve the channel utilization while in- creasing network throughput, reduce energy consumption signal conflict and Key words：