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 language | English |
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| Pages (from-to) | 1911-1915 |
| Number of pages | 5 |
| Journal | IEEE Vehicular Technology Conference |
| Volume | 59 |
| Issue number | 4 |
| Publication status | Published - Dec 1 2004 |
| Event | 2004 IEEE 59th Vehicular Technology Conference, VTC2004-Spring: Towards a Global Wireless World - Milan, Italy Duration: May 17 2004 → May 19 2004 |
All Science Journal Classification (ASJC) codes
- Computer Science Applications
- Electrical and Electronic Engineering
- Applied Mathematics