An Opportunistic Channel Quality Feedback Scheme for Proportional Fair Scheduling

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 achi...

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Veröffentlicht in:	IEEE communications letters 2007-06, Vol.11 (6), p.501-503
Hauptverfasser:	KIM, Hoon, HAN, Youngnam
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Bandwidth Channels Downlink Electronic mail Exact sciences and technology Feedback Feeds Microwave integrated circuits Reduction Scheduling Scheduling algorithm Systems, networks and services of telecommunications Telecommunication traffic Telecommunications Telecommunications and information theory Teletraffic Throughput Transmission and modulation (techniques and equipments) Wireless networks
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Beschreibung
Zusammenfassung:	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.
ISSN:	1089-7798 1558-2558
DOI:	10.1109/LCOMM.2007.070106