ON THE CAPACITY OF PACKET RESERVATION MULTIPLE-ACCESS WITH CAPTURE INPERSONAL COMMUNICATION-SYSTEMS

In this paper, a new Markovian model is developed to analyze the Packe t Reservation Multiple Access (PRMA) protocol over Rician fading chann els with lognormal shadowing. The packet dropping probability and the voice user capacity are defined as the performance measures, A new for mula is derived to evaluate the dropping probability in the fading env ironment, The analytical results from our new formula show close agree ment with those from computer simulations, The capture effect on the P RMA system performance is also studied, We found that, with capture, t he user capacity will be improved and the service quality will degrade gracefully when the number of active users in the system increases, U sing the dropping probability as the criterion, we also determine the optimal permission probability in a microcellular environment.