000000057 001__ 57
000000057 005__ 20190316233045.0
000000057 037__ $$aARTICLE
000000057 245__ $$aNew Network and ATM Adaptation Layers for Interactive MPEG-2 Video Communications: A Performance Study Based on Psychophysics
000000057 269__ $$a1998
000000057 260__ $$c1998
000000057 336__ $$aJournal Articles
000000057 520__ $$aIn this paper, we present new Network and ATM Adaptation Layers for interactive MPEG-2 video communications. These layers provide reliable transmission by applying per-cell sequence numbering combined with a selective Forward Error Correction (FEC) mechanism based on Burst Erasure codes. We compare the performance of the proposed scheme with a transmission over AAL5 by simulating the transport of an MPEG-2 sequence over an ATM network. Performance is measured in terms of Cell Loss Ratio (CLR) and user perceived quality. The proposed layers achieve significant improvements on the cell loss figures obtained for AAL5 under the same traffic conditions. To evaluate the impact of cell losses at the user level, we apply a perceptual quality metric to the decoded MPEG-2 sequences. According to the computational metric and subjective rating, the proposed multimedia AAL (MAAL) achieves a graceful quality degradation. The application of a selective FEC achieves an even smoother image quality degradation with a low overhead
000000057 6531_ $$aATM Adaptation Layer
000000057 6531_ $$aNetwork Adaptation Layer
000000057 6531_ $$aForward Error Correction
000000057 6531_ $$aVBR
000000057 6531_ $$aMPEG-2
000000057 6531_ $$aPerceptual Quality
000000057 6531_ $$aInteractive Multimedia
000000057 6531_ $$aStatistical Multiplexing Metric
000000057 700__ $$aGarcia, X.
000000057 700__ $$aVerscheure, O.
000000057 773__ $$j1$$k1$$q145-178$$tInteroperable Communication Networks
000000057 8564_ $$s345050$$uhttps://infoscience.epfl.ch/record/57/files/GarciaV98.pdf$$zn/a
000000057 909C0 $$0252614$$pLCA$$xUS00024
000000057 909C0 $$0252452$$pLCA1$$xU10426
000000057 909CO $$ooai:infoscience.tind.io:57$$pIC$$particle$$qGLOBAL_SET
000000057 937__ $$aLCA-ARTICLE-1998-005
000000057 970__ $$a170/LCA
000000057 973__ $$aEPFL$$sPUBLISHED
000000057 980__ $$aARTICLE