TY - GEN
T1 - Rate-optimal multiuser scheduling with reduced feedback load and analysis of delay effects
AU - Hassel, Vegard
AU - Alouini, Mohamed-Slim
AU - Øien, Geir E.
AU - Gesbert, David
PY - 2005/12/1
Y1 - 2005/12/1
N2 - In this paper we propose a multiuser scheduling algorithm that has the maximum average system spectral efficiency, but obtains a significant reduction in feedback load compared to full feedback by using a feedback threshold. An expression for the threshold value that minimizes the feedback load is found. Novel closed-form expressions are also found for the system spectral efficiency when using M-ary quadrature amplitude modulation. Finally, we analyze the impact of scheduling delay and outdated channel estimates.
AB - In this paper we propose a multiuser scheduling algorithm that has the maximum average system spectral efficiency, but obtains a significant reduction in feedback load compared to full feedback by using a feedback threshold. An expression for the threshold value that minimizes the feedback load is found. Novel closed-form expressions are also found for the system spectral efficiency when using M-ary quadrature amplitude modulation. Finally, we analyze the impact of scheduling delay and outdated channel estimates.
UR - http://www.scopus.com/inward/record.url?scp=84863698659&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:84863698659
SN - 1604238216
SN - 9781604238211
T3 - 13th European Signal Processing Conference, EUSIPCO 2005
SP - 33
EP - 36
BT - 13th European Signal Processing Conference, EUSIPCO 2005
T2 - 13th European Signal Processing Conference, EUSIPCO 2005
Y2 - 4 September 2005 through 8 September 2005
ER -