Approximate discrete time analysis of the hybrid token-CDMA MAC system

In this paper a hybrid Token-CDMA based medium access control (MAC) protocol is considered. The MAC scheme is analytically modeled as a multiserver multiqueue (MSMQ) system in the case of a gated service discipline. We present an approximated discrete time analysis for the queue inside the system where the analysis is concerned with the general case in which the system accommodates several traffic classes. Each queue in the system is assumed to incorporate the input model, the vacation model and the buffer model. The packet arrival process is assumed to be a Poisson distribution, with the same rate for the queues in each traffic class, and data rate quality of service (c) is incorporated to regulate the input. Packet service time is modeled with independent, identically distributed random variables with geometric distributions. Moments of the packet delay are derived using the probability generating function approach.