无线Mesh网络中使用双收发器的多信道MAC协议研究  

Research on multi-channel MAC protocols using dual transreceivers in wireless Mesh networks

作　　者：何萍实[1] 徐子平[2] 

机构地区：[1]解放军理工大学指挥自动化学院 [2]解放军理工大学通信工程学院

出　　处：《计算机应用研究》2010年第1期327-329,共3页Application Research of Computers

摘　　要：在无线Mesh网络中,当底层有多个可用的物理信道时,必须设计高效的媒体访问控制协议(MAC)才能充分利用所有可用信道,克服多信道的隐终端和显终端问题。三类多信道MAC协议都只使用了两个无线收发器,却能够在保持经济性的同时最大限度地利用多个信道,并解决多信道环境下广播消息发送和信道切换等问题。分析比较表明,该MAC协议能够在一定程度上利用多个信道增加网络的有效吞吐量,但在保证网络负载均衡上还存在不足,需要进一步研究。In wireless Mesh networks （WMNs）, when multiple physical channels are available, high efficient media access control （MAC） protocols must be designed in order to fully exploit all the available channels and resolve the hidden and exposed terminal problems. This paper introduced three classes of multi-channel MAC protocol using dual transreceivers. Multiple channels could be maximally utilized with little cost. The difficulties of broadcast messaged sending and channel switching could also be resolved. Conclusions were drawn through comparison that the protocols can utilize multiple channels in some extent to improve the total throughput, but cannot guarantee the load balancing of the networks and should be further studied.

关 键 词：无线MESH网络 多信道 媒体访问控制协议 信道切换 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]