A medium access scheme for voice, self-similar traffic and data integration in DS-CDMA personal communication networks

Future CDMA personal communication systems will support a wide range of broadband services exhibiting self-similarity or long-range dependence. The long-tail property of the aggregate self-similar traffic makes it difficult for the system to predict future resource usage from current resource usage. The result is difficulty in efficient management and control of admitted traffic components. To address this problem, we propose a medium access scheme that guarantees Quality-of-Service (QoS) requirements for a DS-CDMA personal communication system that supports voice, delay-insensitive data and self-similar traffic. The performance of the scheme is analyzed in terms of outage probability, data packet delay and throughput of voice and self-similar traffic. Numerical results are calculated and compared with the performance of a system without control of data access.