Transitions in Live Video Streaming Services

Richerzhagen, Björn; Wilk, Stefan; Rückert, Julius; Stohr, Denny; Effelsberg, Wolfgang

doi:10.1145/2676652.2683466

Cited by 6 publications

(2 citation statements)

References 4 publications

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“…The idea of mechanism transitions origins from the collaborative research center MAKI, in which researchers investigate mechanism transitions for the Future Internet [29]. Within MAKI, mechanism transitions are investigated in the context of a wide range of communication mechanisms [15,[30][31][32][33]. For example in publish-subscribe systems, mechanism transitions between ltering schemes [30] and event dissemination mechanisms [31] are studied.…”

Section: Mechanism Transitionsmentioning

confidence: 99%

Tcep

Luthra

Koldehofe

Weisenburger

et al. 2018

Proceedings of the 12th ACM International Conference on Distributed and Event-Based Systems

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Operator placement has a profound impact on the performance of a distributed complex event processing system (DCEP). Since the behavior of a placement mechanism strongly depends on its environment; a single placement mechanism is often not enough to ful ll stringent performance requirements under environmental changes. In this paper, we show how DCEP can bene t from the adaptive use of multiple placement mechanisms. We propose T , a DCEP system to integrate multiple placement mechanisms. By enabling transitions, T can seamlessly exchange distinct operator mechanisms at runtime. We make two main contributions that are highly important for a cost-e cient transition: i) a transition strategy for e ciently scheduling state migrations and ii) a lightweight learning algorithm to adaptively select an appropriate placement mechanism as a consequence of a transition. Our evaluations for important decentralized placement mechanisms in the context of an IoT scenario show that transitions can better ful ll QoS demands in a dynamic environment. Thereby, e cient scheduling of state migrations can help to faster complete transitions by up to 94 %. CCS CONCEPTS• Computer systems organization → Distributed architectures; • Networks → Network dynamics;

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Section: Mechanism Transitionsmentioning

confidence: 99%

Tcep

Luthra

Koldehofe

Weisenburger

et al. 2018

Proceedings of the 12th ACM International Conference on Distributed and Event-Based Systems

View full text Add to dashboard Cite

show abstract

“…Here, the virtual video player was replaced by a real video player library as part of an Android application. This app is used for demonstration purposes [12] and was successfully shown at different occasions to demonstrate the adaptive behavior of the streaming system. For the demonstration, the focus is on small-scale scenarios and the user-centric view on the system.…”

Section: Live Video Streamingmentioning

confidence: 99%