Performance analysis and application of PMCAP/CDMA protocol in voice/data integration networks
PMCAP/CDMA协议在语音与数据混合业务中的应用研究

An MAC protocol named PMCAP/CDMA is introduced and utilized in voice/data integration network for uplink channel of CDMA mobile communication systems. Mathematical model is built and performance analysis is conducted. Three code sets for voice contention, data contention and voice/data reservation are adopted so that there are no contentions between voice and data users. Two adaptive code-set-assign methods are proposed. Simulation shows, compared with fixed assigned method, adaptive method can greatly improve the system performance. And the second adaptive code-set-assign method is a good trade off between voice drop rate and data delay.