Multiple description trellis-coded vector quantization

Author

Zhou, Guangcai ; Zhang, Zhen

Author_Institution

RadioCosm, Inc., Mountain View, CA, USA

Volume

2

fYear

2001

fDate

2001

Firstpage

1414

Abstract

Multiple description schemes for trellis coded vector quantizers are introduced. For these schemes, the Viterbi algorithm provides an optimal path for encoding and the design procedure utilizes the generalized Lloyd algorithm for suboptimal codebooks. The schemes are generalization of Jafarkhani and Throkh (see ICIP ´98, Proceedings. of International Conference on Image Processing, vol.1, p.669-673,1998 and IEEE Transactions on Communications, vol.47, no.6, p.799-803, 1999) method in both temporal and spatial senses. A lower bound on rate-distortion region for more than three descriptions is given. The lower bound is a generalization of Ozarow´s (1980) achievable region for a two channel and three description scheme

Keywords

Gaussian processes; memoryless systems; rate distortion theory; source coding; trellis codes; vector quantisation; Ozarow´s achievable region; Viterbi algorithm; asymptotic performance; design procedure; diversity-based communication system; generalized Lloyd algorithm; lower bound; memoryless Gaussian sources; multiple description trellis-coded VQ; multiple description trellis-coded vector quantization; optimal encoding path; rate-distortion region; simulation results; source coding; spatial MD-TCQ; suboptimal codebooks; Algorithm design and analysis; Communication systems; Distortion measurement; Optical fiber communication; Radio transmitters; Rate-distortion; Source coding; Spatial resolution; Vector quantization; Viterbi algorithm;

fLanguage

English

Publisher

ieee

Conference_Titel

Global Telecommunications Conference, 2001. GLOBECOM '01. IEEE

Conference_Location

San Antonio, TX

Print_ISBN

0-7803-7206-9

Type

conf

DOI

10.1109/GLOCOM.2001.965728

Filename

965728