Estimation of soft decision channel gain for coded MIMO system 


Vol. 36,  No. 6, pp. 577-586, Jun.  2011


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  Abstract

Modern digital communication systems are required to use forward error correction (FEC) codes to combat inevitable channel impairment. Turbo codes or low density parity check (LDPC) codes, using iterative decoding with soft decision detection (SDD) information, are the most common examples. The excellent performance of these codes should be conditioned on accurate estimation of soft decision detection information. In order to use FEC codes with iterative decoding for Multi-Input Multi-Output (MIMO) system, reliable soft decision channel gain should be provided. In this paper, we investigate efficient SDD methods for turbo-coded MIMO system, and derive the corresponding formulas of SDD for various MIMO detection schemes. We present simulation results of the derived SDD schemes for turbo-coded MIMO systems, and show that the presented results almost approximate to maximum likelihood detection performance with much less computational load.

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  Cite this article

[IEEE Style]

Y. M. Kim, P. P. Shang, S. Kim, "Estimation of soft decision channel gain for coded MIMO system," The Journal of Korean Institute of Communications and Information Sciences, vol. 36, no. 6, pp. 577-586, 2011. DOI: .

[ACM Style]

Young Min Kim, Ping Ping Shang, and Sooyoung Kim. 2011. Estimation of soft decision channel gain for coded MIMO system. The Journal of Korean Institute of Communications and Information Sciences, 36, 6, (2011), 577-586. DOI: .

[KICS Style]

Young Min Kim, Ping Ping Shang, Sooyoung Kim, "Estimation of soft decision channel gain for coded MIMO system," The Journal of Korean Institute of Communications and Information Sciences, vol. 36, no. 6, pp. 577-586, 6. 2011.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880