A compression-efficient forward error control mechanism for image transmission over ATM networks

摘要

Multimedia services over lossy networks have triggered the development of robust error control and recovery techniques. The main attributes of these techniques include time efficient processing, low amount of additional data overhead, and high resilience to errors in order to efficiently deliver these services. We propose a Dynamic-Selective FEC with Independent Triangular Interleaving scheme (DS-ITRII) that provides several advantages for multimedia transmission, including efficient compression, fast channel decoding, and low FEC overhead. The proposed scheme is analyzed by simulating a lossy image transmission over an ATM network. We show that for high compression ratios (/spl les/0.5 bpp) our scheme after data interleaving and channel encoding performs much better than the Baseline JPEG. It also provides high probability for the protected information reaching the receiver error free.