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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/10119/9814
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| タイトル: | EXIT Chart-Based Power Allocation for Iterative Frequency Domain MIMO Detector |
| 著者: | Karjalainen, Juha
Codreanu, Marian
Tolli, Antti
Juntti, Markku
Matsumoto, Tad |
| キーワード: | EXIT Chart
Power Allocation
Turbo Equalization
Multiuser Detection
Precoding
MIMO
MMSE |
| 発行日: | 2011-04 |
| 出版者: | Institute of Electrical and Electronics Engineers (IEEE) |
| 誌名: | IEEE Transactions on Signal Processing |
| 巻: | 59 |
| 号: | 4 |
| 開始ページ: | 1624 |
| 終了ページ: | 1641 |
| DOI: | 10.1109/TSP.2010.2104143 |
| 抄録: | Transmission power allocation in single-carrier multiple-input multiple-output (MIMO) systems with iterative frequency-domain (FD) soft cancellation (SC) minimum mean-squared error (MMSE) equalization is considered. A novel framework for transmission power minimization subject to equalizer convergence constraints, referred as convergence constrained power allocation (CCPA) method, is proposed based on extrinsic information transfer (EXIT) chart analysis. The proposed method decouples the spatial interference between the streams using singular value decomposition (SVD), and minimizes the transmission power while achieving the target mutual information for each stream after iterations at the receiver. We show that the transmission power optimization can be formulated as a convex optimization problem. Three CCPA methods, one approximately optimal, and other two heuristic methods inspired by the Lagrange duality are derived. The numerical results demonstrate that the proposed scheme outperforms the existing linear precoding schemes. Moreover, the proposed heuristic schemes can achieve performance close with that of the approximately optimal method in terms of the equalizer convergence properties as well as transmission power. |
| Rights: | Copyright (C) 2011 IEEE. [Full-text of this paper is not available in JAIST Repository.]
The original publication can be found at:
http://dx.doi.org/10.1109/TSP.2010.2104143 |
| URI: | http://hdl.handle.net/10119/9814 |
| 資料タイプ: | none |
| 出現コレクション: | b10-1. 雑誌掲載論文 (Journal Articles)
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