TY - GEN
T1 - Alpha-rule scheduling for MIMO broadcast wireless channels with linear receivers
AU - Khan, M. Arif
AU - Vesilo, Rein
AU - Collings, Iain B.
AU - Davis, Linda M.
N1 - Copyright 2009 IEEE. Reprinted from Proceedings of the 2009 Australian Communications Theory Workshop : the University of New South Wales, Sydney, Australia, 4 - 7 February 2009. This material is posted here with permission of the IEEE. Such permission of the IEEE does not in any way imply IEEE endorsement of any of Macquarie University’s products or services. Internal or personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution must be obtained from the IEEE by writing to [email protected]. By choosing to view this document, you agree to all provisions of the copyright laws protecting it.
PY - 2009
Y1 - 2009
N2 - This paper considers a multi-user MIMO broadcast wireless channel where a MAC layer scheduler is used to improve system efficiency and provide quality of service improvements (fairness) to users. In particular, an alpha-rule scheduler is considered that uses rate estimates from users to make user selection decisions. The main challenge faced by the scheduler is that users need to estimate the interference caused by other users before transmit antenna allocation has been done. The paper examines two techniques for estimating data rates. The first technique assumes no interfering signals are present and the second technique includes the dominant interfering signal.We show that the scheduler can be tuned to significantly increase fairness with little reduction in mean sum rate to users and we show that both mean sum rate and fairness can be increased by including the dominant interfering signal to estimate data rates.
AB - This paper considers a multi-user MIMO broadcast wireless channel where a MAC layer scheduler is used to improve system efficiency and provide quality of service improvements (fairness) to users. In particular, an alpha-rule scheduler is considered that uses rate estimates from users to make user selection decisions. The main challenge faced by the scheduler is that users need to estimate the interference caused by other users before transmit antenna allocation has been done. The paper examines two techniques for estimating data rates. The first technique assumes no interfering signals are present and the second technique includes the dominant interfering signal.We show that the scheduler can be tuned to significantly increase fairness with little reduction in mean sum rate to users and we show that both mean sum rate and fairness can be increased by including the dominant interfering signal to estimate data rates.
UR - http://www.scopus.com/inward/record.url?scp=66249106738&partnerID=8YFLogxK
U2 - 10.1109/AUSCTW.2009.4805610
DO - 10.1109/AUSCTW.2009.4805610
M3 - Conference proceeding contribution
AN - SCOPUS:66249106738
SN - 9781424433568
SP - 110
EP - 115
BT - Proceedings of the 2009 Australian Communications Theory Workshop, AusCTW 2009
PB - Institute of Electrical and Electronics Engineers (IEEE)
CY - Pistacaway, NJ
T2 - 2009 Australian Communications Theory Workshop, AusCTW 2009
Y2 - 4 February 2009 through 7 February 2009
ER -