Evaluation of V2X Communication Architecture Characteristics Based on Loss Queueing System with Bandwidth Sharing Discipline

The paper considers a loss multi-channel queueing system modeling a cell in a wireless network. The model may be applicable in 4G/5G networks. Calls of different classes are serviced in the cell under a bandwidth sharing algorithm called the multiple fractional channel reservational policy. According to this algorithm, a number of channels is reserved for calls of certain classes. An approach is known to compute an approximate value the loss probabilities for calls of each class. The approach is based on the formulas derived under the assumption that the service time of a call is distributed exponentially. We study by simulation the accuracy of the approach generalization for the case of general service distribution time. We proposes an approximate approach to evaluate the stationary state probabilities, the loss probability and the average number of serviced jobs for First Come First Displaced protocol. We estimate the accuracy of this approach.