Efficient maximum likelihood decoding of peak power limiting codes for OFDM

Author

Grant, Alex J. ; Van Nee, Richard

Author_Institution

Inst. for Signal & Inf. Process., Swiss Federal Inst. of Technol., Zurich, Switzerland

Volume

3

fYear

1998

fDate

18-21 May 1998

Firstpage

2081

Abstract

We derive an efficient maximum likelihood soft decision decoding method for peak-to-mean power ratio limiting codes, of interest in OFDM transmission schemes. We extend the well known method of decoding first order Reed-Muller codes to the case of Q-ary information vectors and Q-PSK modulation. In addition we describe reduced-complexity methods of decoding, which simulations show to lose only fractions of a dB compared to the maximum-likelihood method

Keywords

Hadamard transforms; OFDM modulation; Reed-Muller codes; computational complexity; maximum likelihood decoding; quadrature phase shift keying; OFDM; OFDM transmission; Q-PSK modulation; Q-ary information vectors; efficient decoding method; fast Hadamard transform decoding; first order Reed-Muller codes; maximum likelihood soft decision decoding; peak power limiting codes; peak-to-mean power ratio limiting codes; reduced-complexity methods; simulations; Block codes; Frequency conversion; Frequency modulation; Information processing; Laboratories; Limiting; Maximum likelihood decoding; Modulation coding; OFDM; Signal processing;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 1998. VTC 98. 48th IEEE

Conference_Location

Ottawa, Ont.

ISSN

1090-3038

Print_ISBN

0-7803-4320-4

Type

conf

DOI

10.1109/VETEC.1998.686123

Filename

686123