一种复杂环境下的无线应急通信中继节点快速布点方法

A Rapid Deployment Method for Wireless Emergency Communication Relay Nodes in Complex Environment

无线应急通信作为综合应急保障体系的重要组成部分,在应对洪水、地震、海啸等自然灾害时有着传统网络无可比拟的便捷性和经济型。中继节点作为无线中继网络的关键环节,其选址将直接影响整个应急通信网络的性能。复杂环境无线应急通信中继节点选址依靠现场实地调查和测量,但会存在选址速度慢、中继节点冗余和通信链路质量差等问题。针对以往这些问题,使用站点间传播路径损耗作为评价站点品质的依据,在使用射线跟踪方法建模及仿真的基础上进行算法研究,实现了复杂环境下无线应急中继节点的快速、精确选址,并在与传统选址方法的对比实验中验证了本文所提方法的有效性。

As an important part of the comprehensive emergency support system,wireless emergency communication has incomparable convenience and economy in dealing with natural disasters such as flood,earthquake and tsunami.As the key link of wireless relay network,the location of relay node will directly affect the performance of the whole emergency communication network.The site of wireless emergency communication relay node in complex environment depends on field investigation and measurement,but there could be some problems,such as poor speed of siting,redundant relay nodes and poor communication link quality.Aiming at these existed problems,the propagation path loss between nodes is used as the basis to evaluate the quality of nodes.Based on the modeling and simulation of ray tracing method,the algorithm is studied to realize the fast and accurate siting of wireless emergency relay nodes in complex environment.The effectiveness of the proposed method is verified in the comparative experiment with the traditional siting method.