煤矿应急无线网格网宽带无线信道及NS仿真

随着现代化煤矿的要求及无线通信技术的发展,地面现代无线通信技术(如PHS)已经开始应用于煤矿井下通信。本文通过分析煤矿井下无线传播环境特性,提出一种采用基于W iFi的混合型无线网格网络宽带无线通信技术,快速建立煤矿井下应急救援无线通信信道,并使用NS进行了系统仿真,结果表明该信道在延时、抖动率和稳定性等方面的性能较好,理论上适合于井下灾变后应急通信需要。

NS simulation of broadband wireless emergency communication system based on WiFi wireless mesh network

Along with the requirement of the modern mine and the development of the wireless technology,many ground modern radio communication technology(eg PHS) has been introduced into the mine.A kind of hybrid wireless mesh network broadband wireless communication technology on the basis of WiFi is introduced in this paper by analyzing the environmental characters of wireless transmission in mine,built mine emergency wireless communication channel rapidly,and simulated used NS.The result indicates that the system performs well on delay time,jitter and stability.And it is suitable for the need of emergency communication after underwell disaster.