Error spreading: reducing bursty errors in continuous media streaming

Ngo, Hung Q.; Varadarajan, Srivatsan; Srivastava, Jaideep

doi:10.1109/mmcs.1999.779223

Cited by 7 publications

(20 citation statements)

References 25 publications

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“…Loss burstiness, having the greater impact, can reduce MOS in more than one grade (out of five) as shown in [12]. Perceptual studies, such as those referenced in [5], also support the fact that bursty losses may dramatically reduce perceptual quality, especially for audio.…”

Section: A Voice Quality the Factors Affecting It And Its Evaluationmentioning

confidence: 85%

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Packet dispersion and the quality of voice over IP applications in IP networks

Zlatokrilov

Levy

Ieee Infocom 2004

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Abstract-Next Generation Networks (NGN) and the migration towards IP networks is likely to make the IP technology the main vehicle for carrying voice and video calls on modern networks. Packet dispersion is a mechanism by which the packets of a certain session are dispersed over multiple paths, in contrast to the traditional approach by which they follow a single path most of the time. In this work we examine the quality of Voice over IP (VoIP) applications and the effects of packet dispersion on it. We focus on the effect of the network loss on the applications, where we propose to use Noticeable Loss Rate (NLR) as a measure correlated with the voice quality. We analyze the NLR for various packet dispersion strategies over paths experiencing memory-less (Bernoulli) or bursty (Gilbert model) losses, and compare them to each other. Our analysis reveals, that in many situations, in particular for most cases where losses are bursty, the use of packet dispersion reduces the NLR and thus improves session quality. The results suggest that the use of packet dispersion can be quite beneficial for these applications 1 .Keywords --Stochastic processes; packet dispersion; noticeable loss rate; voice over IP quality; bursty losses I.

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Section: A Voice Quality the Factors Affecting It And Its Evaluationmentioning

confidence: 85%

“…4 Note that the Consecutive Loss Factor (CLF), mentioned in [5], is a special case of the NLR metrics.…”

Section: ) a Definition Of Nlrmentioning

confidence: 99%

Packet dispersion and the quality of voice over IP applications in IP networks

Zlatokrilov

Levy

Ieee Infocom 2004

View full text Add to dashboard Cite

show abstract

“…Our earlier work [19,20] has proposed a new type of scheme for handling bursty errors called error spreading. The main idea is not to reduce overall error, but rather to tradeoff bursty error (the bad error) for average error (the good error).…”

Section: Introductionmentioning

confidence: 99%

“…However, the impact of packet scrambling on user perception or system resources was not investigated. In [19,20] we had established precisely the relationship between buffer requirement and user perceived quality in a bounded bursty network error scenario . A key advantage of this approach is that it requires no additional bandwidth for the spreading of errors.…”

Section: Introductionmentioning

confidence: 99%