Title :
An Opportunistic Channel Quality Feedback Scheme for Proportional Fair Scheduling
Author :
Kim, Hoon ; Han, Youngnam
Author_Institution :
Minist. of Inf. & Commun.(MIC), Jongno-gu
fDate :
6/1/2007 12:00:00 AM
Abstract :
In this paper, we propose a channel quality information (CQI) feedback load reduction scheme for proportional fair scheduling (PFS) in wireless systems. The proposed scheme induces select users to feed back CQI only when the probability of selection is high. It is shown that the proposed scheme achieves system throughput comparable to the conventional scheme, where each and every user feeds back its CQIs, with significant feedback load reduction for each of the users.
Keywords :
radio networks; scheduling; telecommunication channels; channel quality information feedback; feedback load reduction scheme; opportunistic channel quality feedback scheme; proportional fair scheduling; wireless systems; Bandwidth; Downlink; Electronic mail; Feedback; Feeds; Microwave integrated circuits; Scheduling algorithm; Telecommunication traffic; Throughput; Wireless networks;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2007.070106
