A Proof of Convergence of the MAP Turbo-Detector to the AWGN Case

In this paper, we consider a coded transmission over a frequency-selective channel. We propose to study analytically the convergence of the turbo-detector using a maximum a posteriori (MAP) equalizer and a MAP decoder. We show that the densities of the extrinsic log likelihood ratios (LLRs) exchange...

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Veröffentlicht in:	IEEE transactions on signal processing 2008-04, Vol.56 (4), p.1548-1561
Hauptverfasser:	Sellami, N., Roumy, A., Fijalkow, I.
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Approximation AWGN Bit error rate Channels Coding, codes Convergence Convergence analysis Density density evolution Detection, estimation, filtering, equalization, prediction Equalizers Exact sciences and technology Exact solutions Frequency Gaussian Gaussian approximation Gaussian densities Information, signal and communications theory Iterative decoding Likelihood ratio MAP detection Mathematical analysis Performance analysis Signal analysis Signal and communications theory Signal to noise ratio Signal, noise symmetric densities Telecommunications and information theory turbo- detection
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