Title :
Burst-by-burst adaptive coded modulation-aided joint detection-based CDMA for wireless video telephony
Author :
Chung, J.Y. ; Ng, S.X. ; Kuan, E.L. ; Hanzo, L.
Author_Institution :
Dept. of Electron. & Comput. Sci., Southampton Univ., UK
fDate :
6/24/1905 12:00:00 AM
Abstract :
A burst-by-burst adaptive coded modulation-aided joint detection-based CDMA (ACM-JD-CDMA) scheme is proposed for wireless video telephony and we characterise its performance when communicating over the UTRA wideband vehicular fading channels. The coded modulation schemes invoked in our fixed modulation mode based systems are trellis coded modulation (TCM), turbo TCM (TTCM), bit-interleaved coded modulation (BICM) and iterative-decoding assisted BICM (BICM-ID). When comparing the four schemes at a given complexity, TTCM was found to be the best scheme and the performance of the TTCM-assisted ACM-JD-CDMA system was evaluated using a practical modem mode switching regime.
Keywords :
adaptive codes; adaptive modulation; cellular radio; channel coding; code division multiple access; convolutional codes; demodulation; fading channels; interleaved codes; iterative decoding; phase shift keying; quadrature amplitude modulation; transceivers; trellis coded modulation; turbo codes; videotelephony; CDMA; PSK; QAM; TTCM; UMTS terrestrial radio access; UTRA wideband channels; bit-interleaved coded modulation; burst-by-burst adaptive coded modulation; channel coding; convolutional codes; digital cellular system; fading channels; iterative-decoding assisted BICM; joint detection; trellis coded modulation; turbo TCM; vehicular channels; video transceivers; wireless video telephony; Fading; Interleaved codes; Labeling; Modems; Modulation coding; Multiaccess communication; Radio transmitters; Telephony; Transceivers; Wideband;
Conference_Titel :
Vehicular Technology Conference, 2002. VTC Spring 2002. IEEE 55th
Print_ISBN :
0-7803-7484-3
DOI :
10.1109/VTC.2002.1002829
