Research Article
A Traffic Load Adaptive Fair Scheduler for MIMO Systems
@INPROCEEDINGS{10.1109/BROADNETS.2007.4550423, author={Masoomeh Torabzadeh and Yusheng Ji}, title={A Traffic Load Adaptive Fair Scheduler for MIMO Systems}, proceedings={4th International IEEE Conference on Broadband Communications, Networks, Systems}, publisher={IEEE}, proceedings_a={BROADNETS}, year={2010}, month={5}, keywords={wireless scheduling; traffic load; fairness; MIMO.}, doi={10.1109/BROADNETS.2007.4550423} }- Masoomeh Torabzadeh
Yusheng Ji
Year: 2010
A Traffic Load Adaptive Fair Scheduler for MIMO Systems
BROADNETS
IEEE
DOI: 10.1109/BROADNETS.2007.4550423
Abstract
In this paper, we address the problem of cross layer scheduling for the downlinks of multiple-input multiple-output (MIMO) cellular systems. Previously proposed MIMO schedulers have problems such as ignoring traffic arrival process or complexity. We focus on designing an adaptive fair scheduling algorithm to traffic load changes. We propose a load adaptive multi-output fair queueing (LA-MO-FQ) scheduler, which is based on a fair queueing algorithm with mechanisms for rate selection, compensation of lagging users, and virtual time system. Since some of the scheduler’s system parameters are sensitive to the traffic load, it dynamically adjusts them in a way with low complexity so the system performs better. Furthermore, we also propose in this paper some formulae for the time and service fairness comparisons of MIMO schedulers. Intensive simulation studies considering the mobility of users and the traffic characteristics demonstrate the good performance of LA-MOFQ. Finally, we compare both the performance and fairness of our scheduler with some famous existing schedulers.