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IEICE TRANSACTIONS on Communications

Turbo Coded Iterative V-BLAST System Using Maximum a Posteriori Criterion

Youngsoo YUK, Kyunbyung KO, Cheolwoo YOU, Hyunshik NA, Daesik HONG, Changeon KANG

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Summary :

This letter contains our proposal for a new iterative decoding algorithm for Turbo coded V-BLAST system. The proposed algorithm is based on maximum a posteriori (MAP) decision criterion. In a V-BLAST system concatenated with Turbo codes, the extrinsic information from the soft output channel decoder can be utilized as a priori probability, making it possible to apply MAP decision criteria to the V-BLAST decoding process. The MAP decision criterion is applied to the V-BLAST ordering and slicing procedure, resulting in a considerable gain in bit error performance. As the iteration rate increases, the proposed system exhibits performance similar to that of system with ideal sliced.

Publication
IEICE TRANSACTIONS on Communications Vol.E86-B No.7 pp.2198-2202
Publication Date
2003/07/01
Publicized
Online ISSN
DOI
Type of Manuscript
LETTER
Category
Wireless Communication Technology

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