DocumentCode :
2470423
Title :
Performance of optimal and suboptimal detection for uncoded OFDM system with deliberate clipping and filtering
Author :
Ochiai, Hideki
Author_Institution :
Div. of Phys., Electr. & Comput. Eng., Yokohama Nat. Univ., Japan
Volume :
3
fYear :
2003
fDate :
1-5 Dec. 2003
Firstpage :
1618
Abstract :
The performance of optimal detection based on maximum-likelihood criterion is analyzed for the uncoded OFDM system with the deliberate clipping and filtering. Since the maximum-likelihood detector is difficult to implement, a low-complexity suboptimal detection method is also developed for the system. The analysis based on the truncated union bound and simulation results show that one can achieve clipping gain if the system is appropriately designed. Furthermore, the performance improvement due to the frequency diversity effect is also achieved with moderate clipping and suboptimal detection over frequency-selective Rayleigh fading channels, even without any channel coding.
Keywords :
OFDM modulation; Rayleigh channels; diversity reception; error statistics; maximum likelihood detection; phase shift keying; deliberate clipping; filtering process; frequency diversity effect; frequency-selective Rayleigh fading channel; maximum-likelihood detector; optimal detection; orthogonal frequency division multiplexing; truncated union bound; uncoded OFDM system; AWGN; Channel coding; Fading; Filtering; Frequency diversity; Maximum likelihood detection; Nonlinear distortion; OFDM; Performance analysis; Power amplifiers;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Global Telecommunications Conference, 2003. GLOBECOM '03. IEEE
Print_ISBN :
0-7803-7974-8
Type :
conf
DOI :
10.1109/GLOCOM.2003.1258511
Filename :
1258511
Link To Document :
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