EXIT Chart-Based Power Allocation for Iterative Frequency Domain MIMO Detector
スポンサーリンク
概要
- 論文の詳細を見る
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.
論文 | ランダム
- 計画づくりのチェック・ポイント--ゴ-ルドプランと地域福祉計画 (ゴ-ルドプラン達成のために)
- 「同和」地区老人の生活実態と政策課題 (部落の高齢者)
- 1999RSNA Magna Cum Laudeを受賞して
- 新薬情報 高脂血症治療におけるセリバスタチンの有用性
- 57. 三次元動作解析装置のマーカ角度と実測角度との比較