Adaptive Qos-Aware Wireless Packet Scheduling in OFDMA Broadband Wireless Systems

Abstract

In this paper, we propose the urgency and efficiency based wireless packet scheduling (UEPS) algorithm designed not only to support multiple users simultaneously but also to serve real time (RT) and non-real time (NRT) traffics for a user at the same time. The design goal of the UEPS algorithm is to maximize throughput of NRT traffics with satisfying QoS requirements of RT traffics. We also developed two packet loading methods, an optimized and a fast implementation-based methods. Simulation study shows that there is no significant difference on performance of the UEPS algorithm under two packet loading methods.