基于LEACH路由协议的混合光无线传感网络研究

分析了基于低功耗自适应分簇(LEACH)路由协议的无线传感网络(WSN)在不同拓扑形状下的生命周期,并改进了长方形拓扑形状的路由协议。进而针对WSN在某些场合能量有限、易受干扰和安全性差等缺点,在长方形区域中引入分布式光纤传感结构。将传感光纤铺设在环境复杂和外界电磁波干扰大的监测区域,从而提高整个传感网络的生命周期和可靠性。理论分析和仿真结果表明,改进的拓扑和协议在提高可靠性的同时,有效地延长了光WSN的生存时间,性能优于传统LEACH协议。

A hybrid optical and wireless sensor network based on LEACH routing protocol

Based on the low energy adaptie clustering hierarchy(LEACH) protocol, the wireless sensor network′s lifetime in different topologies is analyzed.Moreover, the routing protocol of the rectangular topology is improved.The distributed optical fiber sensor link located at the rectangular area to overcome shortcomings of wireless sensor network, such as limited power, sensitive to interference and poor security under certain situations.The lifetime and reliability of such a hybrid sensor network can be improved as distributed fiber sensors cover areas with harsh environments and strong electromagnetic interferences.Theoretical analyses and simulation results demonstrate that compared with the standard LEACH protocol, the improved topology and routing protocol can effectively prolong the lifetime of the hybrid sensor network, as well as increase the reliability.