New error resilience method for video transmission in DS-CDMA systems

Author

Hueda, Mario R.

Author_Institution

Digital Commun. Res. Lab., Univ. Nacional de Cordoba, Argentina

Volume

3

fYear

2002

fDate

27-30 Oct. 2002

Firstpage

1098

Abstract

This paper introduces a new error resilience method for reliable video transmission in DS-CDMA systems. The new scheme is designed to stop error propagation in the decoded video sequence originated by residual channel errors. Although our technique is general, we focus here on the problem of providing reliable video communication from wired users to mobile users in slow fading environments. This scenario has been shown to be the most critical due to long block error bursts present in the forward link of CDMA systems, and the inability of error resilience approaches incorporated in wired video codecs to guarantee an acceptable video quality in wireless transmissions. Numerical results show that our approach achieves important improvements in the quality of the decoded video.

Keywords

cellular radio; code division multiple access; data compression; decoding; fading channels; image sequences; interactive video; multiuser channels; radio links; spread spectrum communication; video coding; visual communication; DS-CDMA systems; block error bursts; cellular radio networks; decoded video quality; decoded video sequence; error propagation; error resilience method; forward link; interactive video transmission; residual channel errors; slow fading environments; video quality; wired video codecs; wireless transmissions; Bit rate; Decoding; Error correction; Fading; Mobile communication; Multiaccess communication; Protection; Resilience; Video codecs; Video compression;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Personal Multimedia Communications, 2002. The 5th International Symposium on

ISSN

1347-6890

Print_ISBN

0-7803-7442-8

Type

conf

DOI

10.1109/WPMC.2002.1088348

Filename

1088348