Title :
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
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;
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
DOI :
10.1109/IPTC.2010.108
