Practical experiences in interconnecting LANs via satellite
ACM SIGCOMM Computer Communication Review
Quality estimation of PSK modulated signals
IEEE Communications Magazine
DRS Compression Applied to MPEG-2 Video Data Transmitted over a Satellite Channel
ISCC '00 Proceedings of the Fifth IEEE Symposium on Computers and Communications (ISCC 2000)
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The literature is poor in the analyses of the effects produced bycorrupted bits in compressed video bitstreams. This paper presents theresults of a transmission experiment of MPEG-2 coded video data over asatellite link affected by noise, in order to investigate under whichconditions this type of transmission is economically feasible. Thesignal-to-noise ratio scalability feature of the MPEG-2 encoder wasused to produce different bitstreams of the same movie sequence. Thescope of the study was to verify which are the best combinations ofvideo and channel codings in the presence of attenuation on thesatellite link, in order to optimize the bandwidth utilisation for arequested image quality. The results obtained give indications aboutthe data channel codings to be used to counter the rain fade on thetransmission link, which is a non negligible problem especially whensatellite transmissions are in the Ka band. Moreover, the resultshighlight the flexibility of the scalable video coding in the examinedscenario.