Title :
Joint Optimization for PAPR Reduction and Opportunistic Beamforming (OBF) in OFDM Systems
Author :
Liu, Yanfei ; Zhang, Lei ; Lu, Guangyue
Author_Institution :
Dept. of Telecommun. Eng., Xi´´an Inst. of Posts & Telecommun., Xi´´an, China
Abstract :
Weighting vectors with periodical structure, which are used in opportunistic beamforming (OBF) OFDM system, are generated to reduce the PAPR of the OFDM signal and the complexities of the tradition OBF-OFDM system simultaneously. The simulation results show that with less complexities, the throughput, both in maximum throughput scheduling scheme and the proportional fairness (PF) scheduling scheme, can be improved using the proposed scheme as comparison with the OFDM without OBF.
Keywords :
OFDM modulation; array signal processing; optimisation; OBF-OFDM system; PAPR reduction; joint optimization; maximum throughput scheduling scheme; multiuser diversity; opportunistic beamforming; proportional fairness scheduling scheme; Array signal processing; Delay; Fading; Fluctuations; Frequency conversion; Multiuser detection; OFDM modulation; Peak to average power ratio; Throughput; Transmitting antennas;
Conference_Titel :
Wireless Communications, Networking and Mobile Computing, 2009. WiCom '09. 5th International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-3692-7
Electronic_ISBN :
978-1-4244-3693-4
DOI :
10.1109/WICOM.2009.5302535
