Performance analysis of a new bandwidth balancing mechanism under the presence of erasure nodes

The no-slot-wasting bandwidth balancing (NSW BWB) recently proposed for dual-bus architectures provides throughput fairness and arbitrary bandwidth distribution without wasting channel slots. The performance of two variations of NSW BWB in the presence of erasure nodes and under one or multiple priority classes of traffic is studied by simulation. For both variations, the effect of the erasure mode locations on the throughputs of the various stations, as well as priority classes of traffic, is examined, and the performance of NSW BWB is compared with the corresponding performance of the bandwidth-balancing mechanism of the distributed queue dual bus. The simulation results reveal some very interesting properties for the first of the two NSW BWB variations that are used to derive analytic estimates of its throughput performance in the general case of arbitrary number of stations and arbitrary location of erasure nodes