Title :
A new result on turbo coded QO-STBC schemes
Author :
Park, Unhee ; Kim, Youngmin ; Kim, Sooyoung
Author_Institution :
Div. of Electron. & Inf. Eng., Chonbuk Nat. Univ., Jeonju, South Korea
fDate :
3/1/2010 12:00:00 AM
Abstract :
In this letter, we present a new result on turbo coded quasi orthogonal space time block coding (QO-STBC) schemes. Proper utilization of soft decision information is one of the important factors affecting the performance of turbo codes. If a space time block coding (STBC) scheme is used with turbo codes, the output of the STBC decoder must be fed into a turbo code decoder as soft decision information. Therefore, the performance of turbo codes depends on how the STBC scheme generates soft decision information from its detection process. In this letter, we investigate the performance of turbo coded QO-STBC schemes, and present the optimum soft decision metrics.
Keywords :
block codes; decision theory; decoding; error statistics; space-time codes; turbo codes; BER; QO-STBC scheme; quasiorthogonal space time block coding; soft decision information; turbo code; AWGN; Additive white noise; Bit error rate; Block codes; Diversity methods; Forward error correction; Iterative decoding; Maximum likelihood decoding; Maximum likelihood detection; Turbo codes; QO-STBC; Space-time block coding; soft decision; turbo codes;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2010.03.092404
