QoS-Aware Multichannel Random Access in CDMA2000 Nx EV-DO Systems

CDMA2000 Nx EV-DO, also known as DO-REV. B, is a third generation (3G) wireless solution providing high-speed mobile Internet access. In this paper we describe the design of the access channel MAC protocol considering the QoS of traffic. A QoS-aware multichannel random access based on slotted ALOHA scheme was proposed. Through the theoretical model and simulation results, we confirm that the proposed algorithm has the advantage of giving high throughput to high priority service.