Performance analysis of integrated wireless mobile networks with queueing handoff scheme

We propose and analyze a handoff scheme for integrated real-time and non-real-time service in wireless mobile network. The channels are divided into three parts, one is for real-time service calls, another is for non real-time services calls, and the third part of channels are reserved for overflowed handoff requests, in which some number of channels are reserved exclusively for the real-time service handoff requests. Handoff requests also have their own queues. The system is modeled by a multidimensional Markov chain and the system performance in closed formula are obtained. The scheme is also simulated using extensive runs. Both simulation and analytical results are observed to agree fairly well. In the proposed scheme, forced termination probability of real-time service calls is seen to be significantly decreased. The probability of packet loss of non-real-time transmission is made to be negligibly small, as a non-real-time service handoff request in the queue can be transferred from the queue of the current base station to one of the target base station.