Title :
Modified clipping and filtering scheme for OFDM systems
Author :
Xiao, Vue ; Lei, Xia ; Li, Shaoqian
Author_Institution :
Nat. Key Lab. of Commun., Univ. of Electron. Sci. & Technol. of China, Chengdu, China
Abstract :
In this paper, a modified clipping and filtering scheme is proposed for improving the peak-to-average power ratio (PAPR) reduction performance of conventional repeated clipping and filtering (RCF) scheme in orthogonal frequency division multiplexing (OFDM) systems. The main idea is based on dividing the input OFDM symbol into even-index part and odd-index part for independent processing of clipping and filtering. Simulation results show that the proposed scheme can effectively improve the PAPR reduction performance of original RCF scheme with the same iteration numbers and computational complexity.
Keywords :
OFDM modulation; filtering theory; OFDM system; PAPR reduction; even-index part; modified clipping-filtering scheme; odd-index part; orthogonal frequency division multiplexing; peak-to-average power ratio; Broadband communication; Computational complexity; Computational modeling; Data communication; Information filtering; Information filters; OFDM modulation; Peak to average power ratio; Pulse amplifiers; Web and internet services;
Conference_Titel :
Communications, Circuits and Systems, 2009. ICCCAS 2009. International Conference on
Conference_Location :
Milpitas, CA
Print_ISBN :
978-1-4244-4886-9
Electronic_ISBN :
978-1-4244-4888-3
DOI :
10.1109/ICCCAS.2009.5250571
