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このアイテムの引用には次の識別子を使用してください:
http://hdl.handle.net/10119/10572
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| タイトル: | Spatially Concatenated Codes with Turbo Equalization for Correlated Sources |
| 著者: | Anwar, Khoirul
Matsumoto, Tad |
| キーワード: | Convolutional codes
Slepian-Wolf coding
Source correlation
Turbo equalization |
| 発行日: | 2012-06-11 |
| 出版者: | Institute of Electrical and Electronics Engineers (IEEE) |
| 誌名: | IEEE Transactions on Signal Processing |
| 巻: | 60 |
| 号: | 10 |
| 開始ページ: | 5572 |
| 終了ページ: | 5577 |
| DOI: | 10.1109/TSP.2012.2204259 |
| 抄録: | This paper proposes for single carrier signaling a simple structure that combines turbo equalization and decoding of correlated sources in multipath-rich multiuser Rayleigh fading multiple access channels (MAC), where the correlation between the sources is exploited by vertical iterations (VI) between the decoders. The bit-flipping model with a flipping probability p_e is used to express the ρ correlation between the sources as ρ = 1 - 2p_e. The proposed simple structure, spatially concatenated codes (SpCC), can achieve turbo-like performance over MAC channels suffering from severe inter-symbol interference (ISI), even though it uses short memory convolutional codes. First of all, to achieve turbo-like performance we introduce VIs to exploit the knowledge about the source correlation by exchanging extrinsic log-likelihood ratio (LLR) between the two decoders. We then add a rate-1 doped accumulator (D-ACC) to flexibly adapt for the variation of correlations between the sources. The results of computer simulations and extrinsic information transfer (EXIT) analysis confirm that in multipath-rich environments the proposed structure can achieve excellent performances, 1.02.1.28 dB away from the Slepian-Wolf-Shannon limit, at 1% outage probability for 0 <= 1. |
| Rights: | This is the author's version of the work. Copyright (C) 2012 IEEE. IEEE Transactions on Signal Processing, 60(10), 2012, 5572-5577. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. |
| URI: | http://hdl.handle.net/10119/10572 |
| 資料タイプ: | author |
| 出現コレクション: | b10-1. 雑誌掲載論文 (Journal Articles)
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