Abstract
A simple analytical model is presented to evaluate the effective multicast capacity of unidirectional multi-channel slotted ring networks where each node is equipped with one fixed or tuned transmitter and an array of fixed receivers (i.e., FT-FR w and TT-FR w systems). Furthermore, an approximate approach is developed to compare the mean access delay of a multicast packet between these networks and the TT-FR system [1]. The approach is based on the discrete Geom/Geom/1 queue [2] and on the computation of blocking probabilities. Moreover, the analysis is validated by simulations and the impact of self-similar traffic is shown. The presented methodology enables the comparison of performance of future wavelength division multiplexing (WDM) multicast-capable medium access (MAC) protocols, allowing destination stripping, in terms of effective transmission, and multicast throughput capacity in addition to the access delay.
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