Performance of Voice/Data Integration for Two MAC Protocols in DS-CDMA Wireless Networks

Code Division Multiple Access (CDMA) has become an attractive technique for media access control in Personal Communication Networks (PCN). In this paper, two MAC protocols, namely Preamble Signaling Access (PSA) and Minislot Signaling Access (MSA) are defined and evaluated for voice/data integration at the base station. It assumes that there are two types of mobile hosts, voice mobiles and data mobiles. The base station integrates the data and voice transmission access so that there are no contentions between voice and data users. An adaptive access control is proposed with parameters which affect the system performance. Markovian chain models have been developed to analyze the performance of PSA and MSA protocols. Performance results based upon simulations are also provided.