摘要
针对ＤＱＤＢ城域网的结构，在理论上对其公平性进行了分析，并介绍了改善ＤＱＤＢＭＡＣ协议公平性的２种方法：时隙重用（ＳｌｏｔＲｅｕｓｅ）和带宽平衡机制ＢＷＢＭ（ＢａｎｄｗｉｄｔｈＢａｌａｎｃｉｎｇＭｅｃｈａｎｉｓｍ），最后给出了采用这种协议的结点站状态机模型，并运用Ｍ／Ｇ／１排队模型分析了时隙重用对网络性能的影响．
Recently,researches on Local Area Networks (LANs) and Metropolitan Area Networks (MANs) have rapidly been advanced. This paper first analyses the fairness of basic DQDB MAC protocol after a brief introdUction of DQDB MAN architecture. Then it discusses two methods for improving the fair.ness of DQDB MAC protocol: slot reuse and bandwidth balancing mechanism (BWBM), a protocol state machine model is also given. Finally,this paper analyses the effect of slot reuse on the network performance using the M/G/1queueing model.
出处
《上海交通大学学报》
EI
CAS
CSCD
北大核心
1995年第6期73-78,共6页
Journal of Shanghai Jiaotong University
关键词
双总线城域网
带宽平衡机制
宽带综合业务
distributed queue dual bus metropolitan area network, slot reuse, band width balancing mechanism
