A peak power reduction scheme based on reversal of parity-bits for a block-coded OFDM signal

Osamu Muta, Yoshihiko Akaiwa

Research output: Contribution to journalConference article

7 Citations (Scopus)

Abstract

In this paper, we propose a peak power reduction (PPR) scheme based on reversal of parity-bits for a block-coded OFDM signal. In our PPR scheme, the entire parity-check block of codeword is adaptively reversed symbol-by-symbol, so as to minimize PAPR of the OFDM-signal. At the receiver, the original codeword can be restored with sufficient accuracy by checking the Syndrome of received codeword and protecting a significant-bit of code-word from transmission error. When (7,4), (31,21) and (31,26) BCH code are employed, PAPR of the OFDM signal at the CCDF (Complementary Cumulative Distribution Function) of 10-4 can be reduced by about 2.8, 2.5 and 2.0dB by applying PPR scheme while achieving approximately the same BER performance as the case without PPR in exponentially decaying 6-path Rayleigh fading condition.

Original languageEnglish
Pages (from-to)1911-1915
Number of pages5
JournalIEEE Vehicular Technology Conference
Volume59
Issue number4
Publication statusPublished - Dec 1 2004
Event2004 IEEE 59th Vehicular Technology Conference, VTC2004-Spring: Towards a Global Wireless World - Milan, Italy
Duration: May 17 2004May 19 2004

All Science Journal Classification (ASJC) codes

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

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