基于无冲突MAC的传感器网络节能技术研究

针对传统的无线传感器网络MAC层信道划分中节点为了避免碰撞而持续监听信道的状态发送大量的信道探测与控制信息而造成大量节点能量损耗的问题,提出了一种基于无冲突的MAC层控制信道技术。将无线传感器网络分为不同的簇集,簇间根据网络分布的优先级结合FDMA技术确定信道,簇内的传感器节点之间使用TDMA技术,使用pos技术结合传感器历史状态分配时间片以降低无效功耗。实验证明这种方法的MAC层算法信道控制可以有效地降低因为控制信息的传输而消耗的能量,使整个网络的节能性能明显提高。

Based on the Sensor Network without Conflict MAC Energy Saving Technology Study

In view of the traditional MAC protocol for wireless sensor network nodes in order to avoid collision in continuous monitoring channel state sent large channel detection and control information caused by the large number of nodes energy consumption problem,proposed one kind based on the conflict free MAC protocol control channel technology.Wireless sensor networks are divided into different clusters,the cluster according to the distribution network with FDMA technology to determine the priority channel,cluster within the sensor nodes using TDMA technology,using POS technique combined with sensor history state allocation of time slice to reduce ineffective power consumption.The experimental results show that this method of MAC layer protocol channel control can effectively reduce because the control information transmission and consumption of energy,so that the whole network energy saving properties are improved obviously.