A weighting factor estimation scheme for phase-control based peak power reduction of turbo-coded OFDM signal

Osamu Muta, Yoshihiko Akaiwa

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

In this paper, we propose a weighting factor (WF) estimation scheme for phase-control based peak power reduction (PPR) of turbo-coded OFDM signal. In this PPR scheme, the peak power of OFDM signal is reduced by adjusting the phase of parity-carriers by multiplying WFs. At the receiver, WFs are estimated at turbo-decoder without using any side-information. The proposed WF estimation scheme is based on an iterative decoding of turbo-code, i.e. the turbo decoder provides not only error correction capability but also WF estimation function. When a turbo-code of the constraint length of K = 4 and the code rate of R = 1/2 is employed, PAPR of OFDM signal at the CCDF of 10-4 can be reduced by about 2.1dB by applying the PPR scheme. The proposed scheme achieves good BER performance comparable to the case of perfect WF estimation in attenuated 12-path Rayleigh fading condition. The degradation in BER performance is about 1.0dB, 0.4dB and 0.2dB at BER=10-4 for turbo-coded OFDM signals using QPSK, 16QAM and 64QAM, respectively.

Original languageEnglish
Title of host publication2006 IEEE 63rd Vehicular Technology Conference, VTC 2006-Spring - Proceedings
Pages1477-1481
Number of pages5
Publication statusPublished - Dec 1 2006
Event2006 IEEE 63rd Vehicular Technology Conference, VTC 2006-Spring - Melbourne, Australia
Duration: May 7 2006Jul 10 2006

Publication series

NameIEEE Vehicular Technology Conference
Volume3
ISSN (Print)1550-2252

Other

Other2006 IEEE 63rd Vehicular Technology Conference, VTC 2006-Spring
CountryAustralia
CityMelbourne
Period5/7/067/10/06

All Science Journal Classification (ASJC) codes

  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Applied Mathematics

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    Muta, O., & Akaiwa, Y. (2006). A weighting factor estimation scheme for phase-control based peak power reduction of turbo-coded OFDM signal. In 2006 IEEE 63rd Vehicular Technology Conference, VTC 2006-Spring - Proceedings (pp. 1477-1481). [1683081] (IEEE Vehicular Technology Conference; Vol. 3).