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Optimal packetisation of MPEG-4 using RTP over mobile networks

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4 Author(s)
Worrall, S.T. ; Centre for Commun. Syst. Res., Surrey Univ., Guildford, UK ; Sadka, A.H. ; Sweeney, P. ; Kondoz, A.M.

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

Published in:

Communications, IEE Proceedings-  (Volume:148 ,  Issue: 4 )