Turbo-codes used for compressed image transmission over Rayleigh fading channel

Author

Fei, Xiaofan ; Ko, Tszmei

Author_Institution

Dept. of Electr. & Electron. Eng., Hong Kong Univ., Hong Kong

Volume

2

fYear

1997

fDate

12-16 Oct 1997

Firstpage

505

Abstract

Turbo-code is a newly developed channel coding technique with amazing error correcting capability. It has attracted lots of attention in recent years, In this paper, turbo-codes are applied to JPEG compressed images in a wireless environment. Different combinations of source and channel code rates are simulated for image transmission. In addition, unequal error protection for the header syntax of JPEG compressed images is considered. It is found that turbo-codes combined with unequal error protection give excellent performance for compressed image transmission, even at very low channel signal-to-noise ratio. The optimum joint source/channel coding schemes are given at different signal-to-noise ratios. The image qualities are compared both subjectively and objectively

Keywords

Rayleigh channels; channel coding; code standards; concatenated codes; convolutional codes; fading; image coding; land mobile radio; source coding; telecommunication standards; visual communication; JPEG compressed images; Rayleigh fading channel; channel code rate; compressed image transmission; error correcting codes; header syntax; image quality; noisy mobile radio; optimum joint source/channel coding; parallel concatenated convolutional codes; performance; signal-to-noise ratio; source code rate; turbo codes; unequal error protection; wireless environment; wireless multimedia; Channel coding; Decoding; Fading; Image coding; Image communication; Protection; Signal to noise ratio; Transform coding; Turbo codes; Videos;

fLanguage

English

Publisher

ieee

Conference_Titel

Universal Personal Communications Record, 1997. Conference Record., 1997 IEEE 6th International Conference on

Conference_Location

San Diego, CA

ISSN

1091-8442

Print_ISBN

0-7803-3777-8

Type

conf

DOI

10.1109/ICUPC.1997.627216

Filename

627216