DocumentCode :
1541894
Title :
OFDM PAPR Reduction by Shifting Null Subcarriers Among Data Subcarriers
Author :
Bo Wang ; Pin-Han Ho ; Chih-Hao Lin
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Waterloo, Waterloo, ON, Canada
Volume :
16
Issue :
9
fYear :
2012
fDate :
9/1/2012 12:00:00 AM
Firstpage :
1377
Lastpage :
1379
Abstract :
This proposed method reduces the peak-to-average power ratio (PAPR) of multi-carrier transmission, by exploiting null-subcarriers. Compared with the Partial Transmit Sequence Simulated Annealing (PTS-SA) method, the proposed method yields better PAPR reduction performance while consuming the same computation complexity and less channel side information (CSI). The proposed method also demonstrates better bit-error-rate (BER) performance and much lower computation complexity than Null-Switching when CSI is available. Meanwhile, our method is compatible with the current commercial systems and can incorporate with most other PAPR-reduction methods (such as partial transmit sequences, selective mapping, tone injection, trellis shaping).
Keywords :
OFDM modulation; computational complexity; error statistics; telecommunication switching; BER; CSI; OFDM PAPR reduction method; PTS-SA method; bit-error-rate; channel side information; computational complexity; data subcarriers; multicarrier transmission; null subcarrier shifting; null switching; partial transmit sequence simulated annealing method; peak-to-average power ratio; Bit error rate; Computational complexity; Partial transmit sequences; Peak to average power ratio; Receivers; Switches; Nonlinear distortion; intersymbol interference; null subcarriers; orthogonal frequency division multiplexing; peak-to-average power ratio;
fLanguage :
English
Journal_Title :
Communications Letters, IEEE
Publisher :
ieee
ISSN :
1089-7798
Type :
jour
DOI :
10.1109/LCOMM.2012.060812.120874
Filename :
6218676
Link To Document :
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