Low delay, error robust wireless video transmission architecture for video communication

Author

Wang, Tu-Chih ; Fang, Hung-Chi ; Chen, Liang-Gee

Author_Institution

Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei, Taiwan

Volume

1

fYear

2002

fDate

2002

Firstpage

265

Abstract

In this paper, a novel video transmission architecture is proposed to meet the low-delay and error robust requirement of wireless video communications. This architecture uses FEC coding and ARQ protocol to provide efficient bandwidth access from wireless link. In order to reduce ARQ delay, a video proxy server is implemented at the base station. This video proxy not only reduces the ARQ response time but also provides error tracking functionality. We use H.263 as the experimental platform for our architecture. Experiments show that average luminance PSNR decreases only 0.35db for the "Foreman" sequence under a random error condition of 10^-3 error probability.

Keywords

automatic repeat request; code standards; error correction codes; error statistics; forward error correction; image sequences; mobile radio; video coding; video servers; ARQ protocol; FEC coding; Foreman sequence; H.263; average luminance PSNR; base station; delay reduction; error probability; error robust video transmission; error tracking; low delay video transmission; video communication; video proxy server; wireless video transmission architecture; Access protocols; Automatic repeat request; Bandwidth; Base stations; Delay; Forward error correction; PSNR; Robustness; Wireless application protocol; Wireless communication;

fLanguage

English

Publisher

ieee

Conference_Titel

Multimedia and Expo, 2002. ICME '02. Proceedings. 2002 IEEE International Conference on

Print_ISBN

0-7803-7304-9

Type

conf

DOI

10.1109/ICME.2002.1035769

Filename

1035769