Nonredundant Precoding-Assisted Blind Channel Estimation for Single-Carrier Space-Time Block-Coded Transmission With Frequency-Domain Equalization

Relying on nonredundant diagonal precoding and independent and identically distributed (i.i.d.) source assumption, this paper proposes a blind channel estimation scheme for single-carrier frequency-domain equalization-based space-time block coded systems. The proposed method exploits the precoding-i...

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Vydáno v:	IEEE transactions on signal processing Ročník 55; číslo 3; s. 1062 - 1080
Hlavní autoři:	Wu, Jwo-Yuh, Lee, Ta-Sung
Médium:	Journal Article
Jazyk:	angličtina
Vydáno:	New York, NY IEEE 01.03.2007 Institute of Electrical and Electronics Engineers The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Témata:	Applied sciences Blind channel estimation Blind equalizers Blinds block-circulant matrix with circulant blocks (BCCB) Blocking Channel estimation Channels circulant matrix Coding, codes Construction Detection, estimation, filtering, equalization, prediction Equalization Equations Error analysis Exact sciences and technology Gaussian noise Information, signal and communications theory Mathematical analysis Mathematical models multiple input single output (MISO) Noise robustness nonredundant precoders Optimization Pairwise error probability Performance analysis Signal and communications theory Signal, noise single-carrier frequency-domain equalization space-time block code (STBC) Statistics Studies Telecommunications and information theory transmit diversity White noise Block code Space-time codes Parameter estimation Identifiability transmit diversity space-time block code (STBC) Optimal design Accuracy Gaussian noise Linear equation Pulse response Channel estimation MISO system Deterministic approach block-circulant matrix with circulant blocks (BCCB) Correlation matrix Matrix product Frequency domain method Blind identification Single carrier Equalization Channel coding Mismatching Exact solution nonredundant precoders Carrier frequency multiple input single output (MISO) Blind channel estimation Cross correlation Circulant matrix single-carrier frequency-domain equalization
ISSN:	1053-587X, 1941-0476
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Shrnutí:	Relying on nonredundant diagonal precoding and independent and identically distributed (i.i.d.) source assumption, this paper proposes a blind channel estimation scheme for single-carrier frequency-domain equalization-based space-time block coded systems. The proposed method exploits the precoding-induced linear signal structure in the conjugate cross correlation between the two temporal block received signals as well as the circulant channel matrix property and can yield exact solutions whenever the channel noise is circularly Gaussian and the receive data statistic is perfectly obtained. The channel estimation formulation builds on rearranging the set of linear equations relating the entries of conjugate cross-correlation matrix and products of channel impulse responses into one with a distinctive block-circulant with circulant-block (BCCB) structure. This allows a simple identifiability condition depending on precoder parameters alone and also provides a natural yet effective optimal precoder design framework for improving solution accuracy when imperfect data estimation occurs. We consider two models of data mismatch, from both deterministic and statistical points of view, and propose the associated design criteria. The optimization problems are formulated to take advantage of the BCCB system matrix property and are solved analytically. The proposed optimal precoder aims to optimize solution robustness against deterministic error perturbation and also minimize the mean-square error when the data mismatch is modeled as a white noise. Pairwise error probability analysis is conducted for investigating the equalization performance. Numerical examples are used to illustrate the performance of the proposed method
Bibliografie:	ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 14 ObjectType-Article-1 ObjectType-Feature-2 content type line 23
ISSN:	1053-587X 1941-0476
DOI:	10.1109/TSP.2006.887113