EXIT Chart-Based Power Allocation for Iterative Frequency Domain MIMO Detector

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 convergen...

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Veröffentlicht in:IEEE transactions on signal processing Jg. 59; H. 4; S. 1624 - 1641
Hauptverfasser: Karjalainen, J, Codreanu, M, Tolli, A, Juntti, M, Matsumoto, T
Format: Journal Article
Sprache:Englisch
Veröffentlicht: New York, NY IEEE 01.04.2011
Institute of Electrical and Electronics Engineers
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Schlagworte:
Allocations
Applied sciences
Coding, codes
Convergence
Decoding
Detection, estimation, filtering, equalization, prediction
Detectors
Equalizers
Exact sciences and technology
Extrinsic information transfer (EXIT) chart analysis
frequency domain equalization
Frequency domains
Information, signal and communications theory
Iterative methods
iterative processing
Mathematical models
MIMO
Optimization
power allocation
Receivers
repeat accumulate coding
Resource management
Signal and communications theory
Signal, noise
single carrier
singular value decomposition
Streams
Studies
Telecommunications and information theory
Performance evaluation
MIMO system
repeat accumulate coding
Frequency domain method
Iterative method
iterative processing
Equalizer
Frequency measurement
Single carrier
Equalization
Power allocation
Convex programming
Information transmission
Optimization
Mean square error
Coding
Heuristic method
Signal processing
Extrinsic information transfer (EXIT) chart analysis
Numerical simulation
Pretreatment
Mutual information
Singular value decomposition
frequency domain equalization
ISSN:1053-587X, 1941-0476
Online-Zugang:Volltext
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Beschreibung
Zusammenfassung: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.
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ISSN:1053-587X
1941-0476
DOI:10.1109/TSP.2010.2104143