Presentation 2008-06-12
A Study on Frequency Domain Error Correction Scheme for MC-CDMA
Hirokazu TANAKA, Kyung Woon JANG, Shochiro YAMASAKI, Miki HASEYAMA,
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Abstract(in English) Recently, multi-code MC CDMA has a lot of attention in wireless multimedia communications because of its high bit rate performance. On the other hand, considering hardware implementation, it requires high power amplifier (HPA) with highly linear characteristics. HPA nonlinearity causes high out-of-band spurious emission and high peak to average power ration (PAPR). In order to solve these problems, employing bi-orthogonal modulation instead of multi-code modulation has been studied. As for the error correction coding of the MC-CDMA with bi-orthogonal modulation, the probability of the erroneous Hadamard code selection at receiver is critical for the BER performance compared to the sign bit error. In this paper, we propose an efficient error correcting scheme for the code selection error employing Reed-Solomon (RS) code. Additionally, an efficient decoding structure that can also correct the uncoded sign bit error using feed back RS decoded codeword is proposed. The basic performance of the proposed scheme was evaluated by both theoretical analysis and computer simulations.
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Keyword(in English) multi-carrier CDMA / OFDM / Reed-Solomon code / Frequency domain / error correction code
Paper # SIS2008-12
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Committee SIS
Conference Date 2008/6/5(1days)
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Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) A Study on Frequency Domain Error Correction Scheme for MC-CDMA
Sub Title (in English)
Keyword(1) multi-carrier CDMA
Keyword(2) OFDM
Keyword(3) Reed-Solomon code
Keyword(4) Frequency domain
Keyword(5) error correction code
1st Author's Name Hirokazu TANAKA
1st Author's Affiliation System LSI Division, Toshiba Corporation()
2nd Author's Name Kyung Woon JANG
2nd Author's Affiliation System LSI Division, Toshiba Corporation
3rd Author's Name Shochiro YAMASAKI
3rd Author's Affiliation Dep. of Communication Engineering, Polytechnic University
4th Author's Name Miki HASEYAMA
4th Author's Affiliation Graduate School of Information Science and Technology, Hokkaido University
Date 2008-06-12
Paper # SIS2008-12
Volume (vol) vol.108
Number (no) 85
Page pp.pp.-
#Pages 6
Date of Issue