Channel-matched hierarchical table-lookup vector quantization for transmission of video over wireless channels

Author

Jafarkhani, Hamid ; Farvardin, Nariman

Author_Institution

Dept. of Electr. Eng., Maryland Univ., College Park, MD, USA

Volume

3

fYear

1996

fDate

16-19 Sep 1996

Firstpage

755

Abstract

We propose a channel-matched hierarchical table-lookup vector quantizer (CM-HTVQ) which provides some robustness against the channel noise. We use a finite-state channel to model slowly fading channels and propose an adaptive coding scheme to transmit a source over wireless channels. The performance of CM-HTVQ is in general slightly inferior to that of channel-optimized vector quantizer (COVQ) (the performances coincide at some cases); however, the encoder complexity of CM-HTVQ is much less than the encoder complexity of COVQ

Keywords

adaptive codes; channel coding; fading; table lookup; vector quantisation; video coding; CM-HTVQ; COVQ; adaptive coding; channel coding; channel noise robustness; channel-matched hierarchical table-lookup VQ; channel-optimized vector quantizer; encoder complexity; finite-state channel; performance; slowly fading channels; vector quantization; video transmission; wireless channels; Adaptive coding; Decoding; Discrete wavelet transforms; Educational institutions; Fading; Image coding; Noise robustness; Source coding; Speech coding; Vector quantization;

fLanguage

English

Publisher

ieee

Conference_Titel

Image Processing, 1996. Proceedings., International Conference on

Conference_Location

Lausanne

Print_ISBN

0-7803-3259-8

Type

conf

DOI

10.1109/ICIP.1996.560805

Filename

560805