摘要
由于矿井无线Mesh网络(WMN)多媒体应急通信系统的多跳传输存在基准带宽较低、多跳传输带宽衰减率较大的问题,对其多跳传输性能进行改进。提出了一种矿井WMN多媒体应急通信系统骨干传输链路的网络结构,并建立了其传输模型,研究了对其传输性能产生影响的主要因素。提出了基于802.11n的多跳Mesh骨干传输网络的多模Mesh节点结构,解决了矿井WMN多媒体应急通信系统多跳传输的两个难题。实验结果表明其具有超过165 Mbps的基准带宽,并且在60 Mbps的限速应用环境下,每跳的带宽衰减小于1%,基本满足了矿井多媒体业务传输的应用需求。
The multi-hop transmission of multimedia emergency communication system based on Wireless Mesh Network（WMN） in underground mine have two problems： low basis bandwidth and high multi-hop transmission attenuation.This paper aimed to improve the multi-hop transmission performance for the system.In this paper,a trunk line network structure of multimedia emergency communication system based on WMN in under-ground mine was proposed.The authors established its transmission model,and then had a research on the main factors that affected the transmission performance.The multi-radio node structure of multi-hop mesh backbone network based on 802.11n was proposed and solved the two problems of multi-hop transmission.The experimental results show that it has more than 165 Mbps basis bandwidth,and under the limited 60 Mbps environment,the bandwidth attenuation of per hop is less than 1%,basically satisfying the application requirements of multimedia transmission in underground mine.
出处
《计算机应用》
CSCD
北大核心
2012年第3期800-803,共4页
journal of Computer Applications
基金
国家自然科学基金资助项目(61101139)
福建省杰出青年科技人才培养基金资助项目(JA10212)
关键词
802.11n
应急通信系统
多模
无线MESH网络
多跳传输性能
802.11n
emergency communication system
multi-radio
Wireless Mesh Network（WMN）
multi-hop transmission performance
