SWIM: A scheduler for unsolicited grant service (UGS) in IEEE 802.16e mobile WiMAX networks

Abstract

Most of the IEEE 802.16e Mobile WiMAX scheduling proposals for real-time traffic using Unsolicited Grant Service (UGS) focus on the throughput and guaranteed latency. The delay jitter and the effect of burst overhead have not yet been investigated. This paper introduces a new technique called Swapping Min-Max (SWIM) for UGS scheduling that not only meets the delay constraint with optimal throughput, but also minimizes the delay jitter and burst overhead. ©Institute for Computer Sciences, Social-Informatics and Telecommunications Engineering 2010.