Clustered Feedback with Proportional Fair Scheduling Algorithm for Multi-user OFDM Systems

Author

Lin Huang ; Nian-sheng Chen

Author_Institution

Coll. of Comput. Sci. & Technol., Hubei Normal Univ., Huangshi, China

fYear

2010

fDate

28-29 Oct. 2010

Firstpage

177

Lastpage

179

Abstract

In a downlink orthogonal frequency division multiple access (OFDMA) system, allocating sub-channels and power across multi-user can require excessive feedback of channel state information. An efficient proportional fair scheduling algorithm based on cluster feedback scheme is proposed in the paper. Simulation results show that the scheme needs only little feedback information while maintaining guaranteed various quality-of-service (QoS) demands.

Keywords

OFDM modulation; channel allocation; feedback; frequency division multiple access; multiuser channels; quality of service; channel state information feedback; cluster feedback scheme; downlink orthogonal frequency division multiple access system; multiuser OFDM system; proportional fair scheduling algorithm; quality-of-service demands; subchannel allocation; Clustering algorithms; Downlink; OFDM; Quality of service; Resource management; Scheduling algorithm; Throughput; OFDMA; QoS; cluster feedback; multi-user; resource scheduling;

fLanguage

English

Publisher

ieee

Conference_Titel

Intelligence Information Processing and Trusted Computing (IPTC), 2010 International Symposium on

Conference_Location

Huanggang

Print_ISBN

978-1-4244-8148-4

Electronic_ISBN

978-0-7695-4196-9

Type

conf

DOI

10.1109/IPTC.2010.108

Filename

5663050