Title :
Combined source-channel coding using multicarrier modulation
Author :
Ho, Keang-Po ; Kahn, Joseph M.
Author_Institution :
Bellcore, Red Bank, NJ, USA
fDate :
Oct. 30 1995-Nov. 1 1995
Abstract :
We propose a combined source-channel coding scheme using multicarrier modulation to minimize the distortion in the transmission of analog sources Different degrees of error protection can be provided for different bits by changing the power modulation, and channel coding of the respective subchannels, such that the overall distortion of the source is minimized. For a Gaussian source quantized to 8 bits and transmitted over a AWGN channel, a 13-dB reduction in channel-induced distortion can be obtained.
Keywords :
Gaussian channels; channel coding; error correction codes; frequency division multiplexing; quantisation (signal); rate distortion theory; source coding; AWGN channel; Gaussian source; OFDM; analog sources; channel coding; channel induced distortion; error protection; multicarrier modulation; orthogonal frequency division multiplexing; power modulation; quantization; source-channel coding; subchannels; transmission distortion minimisation; AWGN channels; Analog computers; Bit error rate; Channel coding; Computer errors; Modulation coding; Power engineering computing; Power system protection; Springs; Transmitters;
Conference_Titel :
Signals, Systems and Computers, 1995. 1995 Conference Record of the Twenty-Ninth Asilomar Conference on
Conference_Location :
Pacific Grove, CA, USA
Print_ISBN :
0-8186-7370-2
DOI :
10.1109/ACSSC.1995.540505
