ملخص: Packet reservation multiple sccess (PRMA) has been proposed for third-generation wireless information network by Goodman et al. The mobile initiated handoff has been proposed to disperse the burden of base station (BS) increased by small microcell radius. However, increased contentions due to handoff will affect the overall performance of PRMA, even though these frequent handoffs do not burden on BS. In this paper, we analyze the handoff effect on PRMA performance under a microcellular system, both voice-only and combined voice-and-data systems. Steady state voice-terminal model with handoff is proposed. System-equilibrium equations are derived using the proposed model. The system performance is evaluated by using a Markov analysis method in terms of packet-dropping probability, data-packet delay, and throughput. The changes of performance under handoff show the impact of handoff on PRMA.

لغة: إنجليزية