基于线型双sink节点的高速铁路沿线WSN部署策略

A WSN Deployment Strategy for High-speed Railways Based on Linear Double sink Nodes

针对传统线型无线传感器网络单sink节点部署策略用于高速铁路沿线的问题,提出一种适用于高速铁路沿线的线型双sink节点无线传感器网络部署策略.通过一段轨道两端部署双sink节点并采用非均匀分组的线型无线传感器方式部署普通节点,同时引入改进后的蚁群算法服务路由协议,以解决高速铁路沿线环境下能耗均衡以及路由协议的建立等问题.理论分析和实验仿真结果表明,所用的部署策略节点能够均衡网络能耗,有效避免"能量空洞"引起的问题,可延长网络生命周期、提高算法收敛速度.

Aiming at the problem that the traditional single-sink node linear sensor network deployment strategy can not be applied to the high-speed railway,a new type of wireless sensor network deployment strategy for linear double sink nodes is proposed.This algorithm adopts the linear wireless sensor network structure and non-uniform grouping of nodes with two sink nodes at both ends of the track,and introduces the improved ant colony algorithm in the routing protocol to solve the problem how to ensure the energy consumption balance along the high-speed railway and how to establish routing protocols and other issues.The result of theoretical analysis and experimental simulation show that the deployment of nodes using this strategy can make the network energy consumption more balanced,effectively avoid the ＂energy hole＂ caused by the problem and optimize the network life cycle,algorithm convergence speed and other performance parameters.