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

Youngsoo Yuk, Kyunbyung Ko, Cheolwoo You, Hyunshik Na, Daesik Hong, Changeon Kang

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


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.

Original languageEnglish
Pages (from-to)2198-2202
Number of pages5
JournalIEICE Transactions on Communications
Issue number7
Publication statusPublished - 2003 Jul

All Science Journal Classification (ASJC) codes

  • Software
  • Computer Networks and Communications
  • Electrical and Electronic Engineering


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