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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。
The life cycle of wireless sensor networks (WSN) based on low power consumption adaptive clustering (LEACH) routing protocol under different topological shapes is analyzed and the routing protocol with rectangular topological shape is improved. In order to overcome the shortcomings of limited energy, vulnerable interference and poor security in some occasions, WSN introduces a distributed optical fiber sensing structure in a rectangular area. The sensing fiber laying in the complex environment and the external electromagnetic interference monitoring area, thereby enhancing the life of the sensor network and reliability. Theoretical analysis and simulation results show that the improved topology and protocol can effectively prolong the lifetime of optical WSN while improving the reliability, and outperform the traditional LEACH protocol.