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

fYear

2009

fDate

24-26 Sept. 2009

Firstpage

1

Lastpage

4

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/WICOM.2009.5302535

Filename

5302535