Performance analysis and application of PMCAP/CDMA in voice/data integration networks

Preamble minislot channel access protocol (PMCAP/CDMA) is a receiver-oriented medium access protocol. PMCAP/CDMA is applied to voice and data integration networks in a single cell. A dynamic code-set assignment strategy is proposed to separate voice/data access contention and guarantee the QoS of these traffics. A PCAR (proposed code-pool assignment rule) is proposed to decrease the collision probability of the same type of traffic. The simulation shows that the dynamic code-set assignment strategy is more adaptive to the fluctuation of voice/data traffic. By using PCAR in PMCAP/CDMA, the performance of data traffic is significantly improved while the performance of voice traffic remains good.