机构地区: 北京邮电大学电信工程学院信息与通信工程学院
出 处: 《北京邮电大学学报》 2003年第2期18-22,共5页
摘 要: 针对分布式无线网络提出了一种支持语音/数据业务的多信道媒体接入控制协议.该协议基于竞争的CSMA/CA机制,具有动态的信道分配并且信道数目不依赖于网络拓扑结构的特点.协议改进了IEEE802.11标准中的退避算法,并采用不同的帧间隔以保证实时语音业务的性能. The design and performance of a multichannel MAC protocol for voice/data integrated traffic over IEEE 80211 mobile adhoc networks are presented. The proposed protocol is based on CSMA/CA basis. The dynamic channel selection scheme is implemented and the number of the data channel is independent of the network topology. The priority for realtime traffic is assured by improving back off arithmetic and different IFS.