Title :
Serial and parallel concatenated differential space-time coding
Author :
Yao, Yi ; Howlader, Mostofa
Author_Institution :
Wireless Commun. Res. Group, Tennessee Univ., Knoxville, TN, USA
Abstract :
We propose two types of turbo differential space-time coding, namely serial and parallel concatenated structures. In serial structure, a convolutional encoder is followed by a differential space-time encoder, while in parallel structure, two identical differential space-time encoders are concatenated in parallel. The encoding and iterative decoding process is thoroughly studied, and the improved performance at low SNR is demonstrated and compared via simulations.
Keywords :
concatenated codes; convolutional codes; iterative decoding; space-time codes; turbo codes; convolutional encoder; differential space-time encoders; encoding process; iterative decoding process; low SNR; parallel concatenated differential space-time coding; serial concatenated differential space-time coding; simulation results; turbo differential space-time coding; Block codes; Concatenated codes; Convolutional codes; Equations; Fading; Iterative decoding; Tin; Transmitters; Wireless communication; Yttrium;
Conference_Titel :
MILCOM 2002. Proceedings
Print_ISBN :
0-7803-7625-0
DOI :
10.1109/MILCOM.2002.1180534
