TY - GEN
T1 - Optimization of sliding window algorithm for space-time turbo trellis codes
AU - Nguyen, Kim Chi
AU - Gunawardana, Upul
AU - Liyana-Pathirana, Ranjith
PY - 2007
Y1 - 2007
N2 - The design of space-time turbo trellis codes (ST Turbo TC) for improving the bandwidth efficiency and the reliability of wireless data networks, which is based on the turbo structure, has been proposed in the literature. However, like other turbo based coding schemes, the fundamental problems with the ST Turbo TC decoder are its complexity and decoding delay. In some cases the decoding delay may be so long that the use of ST Turbo TC system is unattractive for time sensitive applications. The aim of this paper is to propose a simplified ST Turbo TC decoder using the sliding window technique in order to achieve memory savings and reduce decoding delay. In particular, we consider the performance of QPSK ST Turbo TC schemes on fast fading channels for various system parameters. Different window sizes are employed and investigated. Through computer simulation, the optimum window sizes are defined for different system parameters.
AB - The design of space-time turbo trellis codes (ST Turbo TC) for improving the bandwidth efficiency and the reliability of wireless data networks, which is based on the turbo structure, has been proposed in the literature. However, like other turbo based coding schemes, the fundamental problems with the ST Turbo TC decoder are its complexity and decoding delay. In some cases the decoding delay may be so long that the use of ST Turbo TC system is unattractive for time sensitive applications. The aim of this paper is to propose a simplified ST Turbo TC decoder using the sliding window technique in order to achieve memory savings and reduce decoding delay. In particular, we consider the performance of QPSK ST Turbo TC schemes on fast fading channels for various system parameters. Different window sizes are employed and investigated. Through computer simulation, the optimum window sizes are defined for different system parameters.
UR - http://www.scopus.com/inward/record.url?scp=46749158391&partnerID=8YFLogxK
U2 - 10.1109/ISCIT.2007.4392196
DO - 10.1109/ISCIT.2007.4392196
M3 - Conference Paper
AN - SCOPUS:46749158391
SN - 1424409772
SN - 9781424409778
T3 - ISCIT 2007 - 2007 International Symposium on Communications and Information Technologies Proceedings
SP - 1182
EP - 1186
BT - ISCIT 2007 - 2007 International Symposium on Communications and Information Technologies Proceedings
T2 - ISCIT 2007 - 2007 International Symposium on Communications and Information Technologies
Y2 - 16 October 2007 through 19 October 2007
ER -