无线传感器网络LEACH路由协议的改进

Improvement on LEACH Routing Protocol of Wireless Sensor Network

分布式无线传感器网络结合无线网络通信技术可实现煤矿采空区沉陷监测,而无线传感器网络的路由协议是研究重点,因此,基于无线传感器网络LEACH路由协议的设计思想,以增强网络通信能力,减少冗余数据传输为目标,针对已有的LEACH改进算法提出一种改进的分层路由协议算法。主要体现在被迫簇首的引入和根据连续时间内单位节点监测变量的数据相关性,减少冗余数据的传输量。对2种LEACH协议的改进算法的网络生存时间进行了对比仿真,证明该改进算法在延长网络生存期方面的有效性。

The distributed wireless sensor network and the technology of wireless communication could realize the subsidence monitoring and measuring in coal mine goaf. One of the important researches was routing protocol in wireless sensor networks. Based on the design idea of the LEACH routing protocol for the wireless sensor network, taking the network communication capacity to be increased and the redundant data transmission to be reduced as the target, according to the available LEACH improved calculation method, an improved layer routing protocol algorithm was provided. With the introduction of the forced cluster head and according to the data relativity of the monitoring and measuring variation for the unit pitch points within the continued time, the redundant data transmission quantity was reduced. A comparison simulation on the network existing time of the improved algorithm for the two LEACH protocols was conduced. The validity of the improved algorithm to extend the network life time was verified.