Title :
A space-time coded OFDM based MPEG-4 audio transceiver
Author :
How, H.T. ; Liew, T.H. ; Hanzo, L.
Author_Institution :
Dept. of Electron. & Comput. Sci., Southampton Univ., UK
fDate :
6/23/1905 12:00:00 AM
Abstract :
An MPEG-4 based space-time (ST) coded orthogonal frequency division multiplexing (OFDM) audio transceiver is proposed. The high-quality MPEG-4 audio codec is operated at bit rates between 16 and 64 kbit/s per channel and combined with turbo channel codes as well as space-time codes. As expected, the space-time coding scheme, using two transmitters and one receiver, outperformed the conventional one transmitter, one receiver arrangement by about 4 dB in channel SNR terms, when maintaining an error-free audio quality
Keywords :
OFDM modulation; adaptive modulation; audio coding; cellular radio; channel coding; diversity reception; quadrature amplitude modulation; quadrature phase shift keying; radio receivers; radio transmitters; transceivers; turbo codes; vector quantisation; 16 to 64 kbit/s; 16QAM; BPSK; MPEG-4 audio transceiver; OFDM; QPSK; adaptive modulation; audio codec; cellular standards; diversity; error-free audio quality; orthogonal frequency division multiplexing; receiver; space-time codes; transmitters; turbo channel codes; vector quantization; 3G mobile communication; Codecs; Decoding; Frequency division multiplexing; MPEG 4 Standard; Multiaccess communication; OFDM modulation; Radio transmitters; Transceivers; Turbo codes;
Conference_Titel :
Vehicular Technology Conference, 2001. VTC 2001 Fall. IEEE VTS 54th
Conference_Location :
Atlantic City, NJ
Print_ISBN :
0-7803-7005-8
DOI :
10.1109/VTC.2001.956877
