摘要
提出了一种新型矿井无线Mesh网络(WMN)多媒体应急通信系统,并针对改善早期WMN多跳带宽下降难题做了全面深入的调研。详细阐述了WMN体系结构及其多跳传输技术。分析和提出了矿井WMN多跳传输性能优化策略,如采用多出入口的WMN拓扑结构、多射频(或多模)路由器/网关设计和非对称业务带宽分配机制。实验结果表明,基于第2代WMN的矿井多媒体应急系统不仅解决多跳传输难题,而且大幅提高了回传干线链路的业务通信带宽。
A novel multimedia emergency communication system based on WMN（Wireless Mesh Network） in underground mine was proposed,and a comprehensive investigation was also conducted to solve the dilemma of bandwidth degradation due to the increase of hops in early WMN.The network architecture and multi-hop technologies were elaborateed.Multi-hop performance optimization solutions in WMN of underground mine were given and analyzed,such as implementing WMN using multi-portals network topology,designing multi-RF（or multi-radio） routers/gateways and asymmetric bandwidth allocation scheme for services.Experimental results show that the system based on the 2nd WMN technology not only solves the multi-hop dilema,but greatly increases the communication bandwidth for services in backbaul links.
出处
《煤炭学报》
EI
CAS
CSCD
北大核心
2011年第4期706-710,共5页
Journal of China Coal Society
基金
煤炭科学研究总院国际合作基金资助项目(2008GJ01)
