Visual communication via trellis coding and transmission energy allocation

Author

Alajaji, Fady I. ; Al-Semari, Saud A. ; Burlina, Philippe

Author_Institution

Dept. of Math. & Stat., Queen´´s Univ., Kingston, Ont., Canada

Volume

47

Issue

11

fYear

1999

fDate

11/1/1999 12:00:00 AM

Firstpage

1722

Lastpage

1728

Abstract

An unequal error protection approach for the reliable communication of visual information over additive white Gaussian noise channels is proposed and studied. This method relies on a bandwidth-efficient coded modulation scheme that employs selective channel coding and transmission energy allocation in conjunction with sequence maximum a posteriori soft-decision detection. Experimental results indicate that this scheme exhibits graceful performance degradation as the channel conditions deteriorate and provides substantial objective and subjective improvements over uncoded and equal-error protection systems. Coding gains of up to 4 dB in E_b/N_o are achieved

Keywords

AWGN channels; combined source-channel coding; maximum likelihood detection; telecommunication network reliability; trellis coded modulation; video coding; visual communication; 4 dB; additive white Gaussian noise channels; bandwidth-efficient coded modulation scheme; channel coding; channel conditions; coding gains; degradation; reliable communication; sequence maximum a posteriori soft-decision detection; transmission energy allocation; trellis coding; unequal error protection approach; visual communication; Additive white noise; Channel coding; Delay; Error correction codes; Gaussian noise; Image coding; Modulation coding; Phase shift keying; Video compression; Visual communication;

fLanguage

English

Journal_Title

Communications, IEEE Transactions on

Publisher

ieee

ISSN

0090-6778

Type

jour

DOI

10.1109/26.803507

Filename

803507