Title :
Image and video transmission over wireless channel: a subband modulation approach
Author :
Zheng, H. ; Liu, K.J.R.
Author_Institution :
Dept. of Electr. Eng., Maryland Univ., College Park, MD, USA
Abstract :
A new approach to reliable image and video transmission over a noisy channel is proposed. The proposed subband modulation scheme combines source coding and a channel modulation scheme to achieve high compression efficiency and preferable quality. Further performance gain is obtained by multiresolution modulation and bits re-mapping scheme that assign efficient mapping from source codeword to channel modulation points. The bits re-mapping scheme performs nearly the same as the optimal mapping design scheme (Lervik and Ramstad, 1996) but with much lower complexity. The simulation is carried out on an additive white Gaussian noise (AWGN) channel, and extended to the slow Rayleigh fading channel
Keywords :
AWGN channels; Rayleigh channels; combined source-channel coding; computational complexity; image coding; modulation coding; multimedia communication; noise; video coding; visual communication; AWGN channel; additive white Gaussian noise channel; bits re-mapping scheme; channel modulation points; channel modulation scheme; complexity; compression; image transmission; multiresolution modulation; noisy channel; quality; slow Rayleigh fading channel; source codeword; source coding; subband modulation; video transmission; wireless channel; AWGN; Additive white noise; Bandwidth; Binary phase shift keying; Channel coding; Gaussian noise; Modulation coding; Quantization; Source coding; Videoconference;
Conference_Titel :
Image Processing, 1998. ICIP 98. Proceedings. 1998 International Conference on
Conference_Location :
Chicago, IL
Print_ISBN :
0-8186-8821-1
DOI :
10.1109/ICIP.1998.723332
