Prioritisation of data partitioned MPEG-4 video over mobile networks

Abstract

Despite much research in the field of mobile multimedia, delivery of real-time interactive video over noisy wireless channels remains a challenging problem. Two of the major issues in providing true end-to-end mobile multimedia capability are interoperability between platforms and networks and the poor performance of video compression algorithms in error-prone environments. This paper presents a method for prioritising data partitioned MPEG-4 video in a way suitable for transmission over a mobile network. The effectiveness of the technique is demonstrated by examining the performance when transmitted using the Real-Time Transport protocol over GPRS (General Packet Radio Service) data channels under varying channel conditions.