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Efficient Detection Scheme for Turbo Coded QO-STBC Schemes  

Park, Un-Hee (한국전자통신연구원 위성휴대전송연구팀)
Oh, Dae-Sub (한국전자통신연구원 위성휴대전송연구팀)
Kim, Young-Min (전북대학교 전자공학부 디지털통신시스템 연구실)
Kim, Soo-Young (전북대학교 전자공학부 디지털통신시스템 연구실)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.35, no.5A, 2010 , pp. 423-430 More about this Journal
Abstract
The performances of turbo-coded space-time block coding (STBC) schemes are subject to how soft decision detection (SDD) information are generated from the STBC decoder. For this reason, we have to pay particular attention to estimation of SDD. In this paper, we evaluate the performance of a turbo coded STBC scheme depending on the accuracy of the SDD. Recently, a new quasi orthogonal STBC (QO-STBC) scheme using a noise whitened filter was proposed in order to reduce noise enhancing effect of zero forcing detection process. This QO-STBC scheme was proven to be efficient in computational complexity compared to the other conventional QO-STBC schemes. In this paper, we first present detailed mathematical analysis on the noise whitened QO-STBC scheme, and by using the result we propose the optimum SDD method.
Keywords
Space-time Block Code(STBC); Forward Error Correction(FEC); Soft-onput Soft-output(SISO); Soft Decision Detection; Turbo Codes;
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Times Cited By KSCI : 1  (Citation Analysis)
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