Recent advances in mobile video communications

Author

Girod, Bernd ; Younes, Khaled Ben ; Faerber, Niko ; Steinbach, Eckehard

Author_Institution

Lehrstuhl fur Nachrichtentech., Erlangen-Nurnberg Univ., Germany

fYear

1996

fDate

30 Oct-1 Nov 1996

Firstpage

3

Lastpage

12

Abstract

Mobile channels cannot provide guaranteed quality of service parameters. We illustrate this problem with a ray tracing simulation of an indoor DECT channel. Unreliable transmission poses severe problems for the transmission of motion video, using compression schemes such as described in the ITU-T H.263 international standard due to temporal error propagation. We discuss compatible extensions of H.263 that utilize a feedback channel for robust transmission. In conjunction with FEC and ARQ, an intelligent source coder control can provide excellent robustness at bit error rates worse than 10^-2

Keywords

automatic repeat request; code standards; cordless telephone systems; digital simulation; forward error correction; indoor radio; land mobile radio; multipath channels; ray tracing; simulation; source coding; telecommunication standards; video coding; videotelephony; ARQ; BER; FEC; ITU-T H.263 international standard; bit error rates; compression schemes; feedback channel; indoor DECT channel; intelligent source coder control; mobile channels; mobile video communications; motion video transmission; multipath reflections; quality of service parameters; ray tracing simulation; robust transmission; temporal error propagation; unreliable transmission; Automatic repeat request; Feedback; Forward error correction; Intelligent control; Mobile communication; Quality of service; Ray tracing; Robust control; Robustness; Video compression;

fLanguage

English

Publisher

ieee

Conference_Titel

VLSI Signal Processing, IX, 1996., [Workshop on]

Conference_Location

San Francisco, CA

Print_ISBN

0-7803-3134-6

Type

conf

DOI

10.1109/VLSISP.1996.558272

Filename

558272