Optimal packetisation of MPEG-4 using RTP over mobile networks

Author

Worrall, S.T. ; Sadka, A.H. ; Sweeney, P. ; Kondoz, A.M.

Author_Institution

Centre for Commun. Syst. Res., Surrey Univ., Guildford, UK

Volume

148

Issue

4

fYear

2001

fDate

8/1/2001 12:00:00 AM

Firstpage

197

Lastpage

201

Abstract

The introduction of third-generation wireless networks should result in real-time mobile video communications becoming a reality. Delivery of such video is likely to be facilitated by the real-time transport protocol (RTP). Careful packetisation of the video data is necessary to ensure the optimal trade-off between channel utilisation and error robustness. Theoretical analyses for two basic schemes of MPEG-4 data encapsulation within RTP packets are presented. Simulations over a GPRS (General Packet Radio Service) network are used to validate the analysis of the most efficient scheme. Finally, a motion adaptive system for deriving MPEG-4 video packet sizes is presented. Further simulations demonstrate the benefits of the adaptive system

Keywords

cellular radio; data encapsulation; packet radio networks; transport protocols; visual communication; GPRS; General Packet Radio Service; MPEG-4; RTP; adaptive system; channel utilisation; data encapsulation; error robustness; mobile networks; motion adaptive system; optimal packetisation; packetisation; real-time mobile video communications; real-time transport protocol; third-generation wireless networks; video packet sizes;

fLanguage

English

Journal_Title

Communications, IEE Proceedings-

Publisher

iet

ISSN

1350-2425

Type

jour

DOI

10.1049/ip-com:20010398

Filename

954626