A forward error recovery technique for MPEG-II video transport
MULTIMEDIA '99 Proceedings of the seventh ACM international conference on Multimedia (Part 2)
MPEG 2 video services for wireless ATM networks
IEEE Journal on Selected Areas in Communications
The EREC: an error-resilient technique for coding variable-length blocks of data
IEEE Transactions on Image Processing
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It is important that applications deployed in wireless networks be robust enough to accommodate different kinds of data losses due to link errors, connection re-routing, and network congestion. A scheme to improve the robustness of MPEG based video applications is proposed. Under this scheme, the packet size at the sender is optimized to the MPEG system layer unit size to enable fast recovery of the time stamps. The receiver buffers the data packets for re-playing during packet losses, preserves useful time stamps for synchronisation, and re-synchronises the decoder when packet loss occurs. This involves no feedback and results in faster recovery of critical timing information for video decoding. The proposed method has been implemented on a video application based on MPEG-I over an Asynchronous Transfer Mode (ATM) network. The experiments show that the proposed technique is very effective when there is deterministic/random packet losses with burst size less than 21. The method is equally applicable to video applications based on MPEG-II program stream and, to wireless Internet.