Scheduled uplink packet transmission schemes for voice traffic in OFDMA-based wireless communication systems

Abstract

In this paper diverse uplink packet scheduling algorithms for voice traffic which can be assumed as CBR were proposed and their performance analyzed. Based on voice traffic model analysis, four types of uplink packet scheduling algorithms, BUS, G-PUS, PUS-PLF and PUS-AMC, were proposed. From simulation results, it was verified that the PUS-AMC algorithm can increase channel capacity up to about 5.7 times compared to other algorithms. Superior performance of the PUS-AMC algorithm was also demonstrated by average packet delay time performance analysis. © 2008 Springer Berlin Heidelberg.