Title :
LDPC and turbo coding assisted space-time block coded OFDM for H.26L compressed wireless video telephony
Author :
Chung, J.Y. ; Alias, M.Y. ; Guo, F. ; Hanzo, L.
Author_Institution :
Dept. of Electr. & Comput. Sci., Southampton Univ., UK
Abstract :
In this contribution we propose an LDPC assisted space-time block coded OFDM transceiver designed for wireless video telephony and characterise its performance when communicating over the UTRA wideband vehicular fading channels. Low density parity check (LDPC) and turbo channel coding schemes are invoked. By concatenating a space-time block coded OFDM scheme with powerful channel codes, the performance of the system can be substantially enhanced. The LDPC codec outperformed the turbo codec in terms of both the achievable video and transmission frame error rate performance.
Keywords :
OFDM modulation; block codes; broadband networks; codecs; error statistics; fading channels; parity check codes; space-time codes; turbo codes; videotelephony; LDPC codec; UTRA wideband vehicular fading channels; low density parity check coding; space-time block coded OFDM; transmission frame error rate; turbo coding; wireless video telephony; Channel coding; Codecs; Fading; OFDM; Parity check codes; Telephony; Transceivers; Turbo codes; Video compression; Wideband;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 2003. PIMRC 2003. 14th IEEE Proceedings on
Print_ISBN :
0-7803-7822-9
DOI :
10.1109/PIMRC.2003.1259229
