The guaranteed bandwidth and balancing mechanism for high speed metropolitan area networks

The bandwidth balancing (BWB DQDB) and guaranteed bandwidth (GBW DQDB) mechanisms have been recently proposed for addressing the issue of channel bandwidth allocation on DQDB type networks. BWB DQDB can introduce fairness into a DQDB network while GBW DQDB can guarantee the bandwidth of certain high priority stations. We introduce the guaranteed bandwidth and balancing mechanism (GBWB DQDB) which aims at combining the advantages of BWB DQDB and GBW DQDB. That is, it can guarantee the bandwidth of high priority stations and at the same time, enables them to compete for the remaining channel bandwidth. We provide a detailed description of the new mechanism and investigate its performance through simulation results. Furthermore, we compare GBWB DQDB with BWB DQDB and GBW DQDB.<
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