基于SJ-RW算法的城市灾害应急无线mesh网构建  

Construction of a wireless mesh network for urban disaster emergency communication based on SJ-RW blind convergence

作　　者：安晶 张立宁 国蛟倩 庄鑫 AN Jing;ZHANG Lining;GUO Jiaoqian;ZHUANG Xin(School of Electronic and Information Engineering,North China Institute of Science and Technology,Yanjiao 065201,China;School of Civil Engineering,North China Institute of Science and Technology,Yanjiao 065201,China)

机构地区：[1]华北科技学院电子信息工程学院,北京东燕郊065201 [2]华北科技学院建筑工程学院,北京东燕郊065201

出　　处：《华北科技学院学报》2025年第1期11-17,共7页Journal of North China Institute of Science and Technology

基　　金：国家重点研发计划项目资助(2022YFC3005701);河北省高等教育教学改革研究项目资助(2021GJJG479)。

摘　　要：目前国内外城市自然灾害频发,应急无线mesh网络由于其优越性,非常适合应用于城市灾害应急通信中。但如何合理分割运用频谱资源,快速接入网络仍是亟待解决的难题。盲汇聚是一种基于信道跳变技术的信道汇聚方法,本研究引入一种快速汇聚全分集的SJ-RW(Sender jump-receiver wait)盲汇聚算法,构建了基于SJ-RW盲汇聚的城市灾害应急通信无线mesh网络。以某城市洪涝灾害下复杂环境应急无线通信为例,进行实证分析。研究结果表明,本研究构建的新型应急无线mesh网络在城市洪涝灾害应急通信应用中,在最大汇聚时间间隔和平均汇聚时间间隔等参数上,相对于传统网络,具有明显优越性,且能够更快实现信道汇聚,提高信道频率利用率。研究成果可为解决城市灾害应急通信问题提供一种新的思路和方法。At present,natural disasters occur frequently in cities both at home and abroad,and emergency wireless mesh networks have been valued and applied in urban disaster emergency communication due to their superiority.However,how to reasonably divide and utilize spectrum resources and quickly access the network is still an urgent problem to be solved.Blind convergence is a channel convergence method based on channel hopping technology,in this paper,the SJ-RW(send jump receiver wait)blind convergence algorithm with fast convergence and full diversity is introduced,and a wireless mesh network for urban disaster emergency communication based on SJ-RW blind convergence is constructed.And then a case study is carried out in the complex geographical environment of emergency wireless communication of a city flood disaster.The research results indicate that the new emergency wireless mesh network constructed in this study has significant advantages over traditional networks in parameters,such as maximum convergence time interval and average convergence time interval in urban flood disaster emergency communication applications,and can achieve channel convergence faster and improve channel frequency utilization.The research results can provide a new approach and method for solving urban disaster emergency communication problems.

关 键 词：城市灾害应急通信 SJ-RW盲汇聚算法 应急无线mesh网 实证分析 

分 类 号：TN92[电子电信—通信与信息系统]