How Neutral is a CDN? An economic approach

Maillé, Patrick; Pires, Karine; Simon, Gwendal; Tuffin, Bruno

doi:10.1109/cnsm.2014.7014188

Cited by 10 publications

(14 citation statements)

References 9 publications

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“…We focus on the management problems faced by a CDN having to dimension and optimally use its infrastructure, sharing it among its clients (content/service providers). The model that is presented here extends the work that was introduced in [15] by addressing the problem of infrastructure dimensioning, by extending the analysis to more than two CPs and general popularity distributions, and by providing new specific results for the case when popularities for the content from each CP follow power laws. Also, with the objective of investigating whether regulation is needed for CDNs, we discuss several definitions of fairness and analyze their impact.…”

Section: Introductionmentioning

confidence: 83%

“…Also, with the objective of investigating whether regulation is needed for CDNs, we discuss several definitions of fairness and analyze their impact. Finally, with respect to [15] the numerical experimentation is based on VoD traces instead of live streaming channels, a framework that is today the main usage of CDNs [16]. Based on our previous model, which considers several content providers in competition for the CDN service, we analyze the behavior of a profit-maximizing CDN, determine the optimal CDN policy, and assess its impact on the quality perceived by users and on the fairness among content providers.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

The Economics of CDNs and Their Impact on Service Fairness

Gourdin

Maillé

Simon

et al. 2017

IEEE Trans. Netw. Serv. Manage.

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Section: Introductionmentioning

confidence: 83%

Section: Introductionmentioning

confidence: 99%

The Economics of CDNs and Their Impact on Service Fairness

Gourdin

Maillé

Simon

et al. 2017

IEEE Trans. Netw. Serv. Manage.

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“…For example in [14] the traces were applied to conceive a scenario where two content providers deliver their contents through an unique Content Delivery Network (CDN). This work characterizes the impact of revenueoriented CDN management policies on the fairness of the competition among two content providers that use CDN services to deliver contents.…”

Section: Dataset Usagementioning

confidence: 99%

YouTube live and Twitch

Pires

Simon

2015

Proceedings of the 6th ACM Multimedia Systems Conference

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154

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User-Generated live video streaming systems are services that allow anybody to broadcast a video stream over the Internet. These Over-The-Top services have recently gained popularity, in particular with e-sport, and can now be seen as competitors of the traditional cable TV. In this paper, we present a dataset for further works on these systems. This dataset contains data on the two main user-generated live streaming systems: Twitch and the live service of YouTube. We got three months of traces of these services from January to April 2014. Our dataset includes, at every five minutes, the identifier of the online broadcaster, the number of people watching the stream, and various other media information. In this paper, we introduce the dataset and we make a preliminary study to show the size of the dataset and its potentials. We first show that both systems generate a significant traffic with frequent peaks at more than 1 Tbps. Thanks to more than a million unique uploaders, Twitch is in particular able to offer a rich service at anytime. Our second main observation is that the popularity of these channels is more heterogeneous than what have been observed in other services gathering user-generated content.

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“…The type of contracts between the CDN and its client CPs, and the resulting storage space management, can significantly impact user perceived quality, CDN service prices, and CDN revenues [2]. Also, the CDN position of intermediary player between the ISP and the CP raises a number of questions regarding the impact on the competition between ISPs [3] and between CPs [4], as well as possible breaches of the net neutrality principle [5].…”

Section: Introductionmentioning

confidence: 99%

Vertical Integration of CDN and Network Operator: Model and Analysis

Maillé

Simon

Tuffin³

2016

2016 IEEE 24th International Symposium on Modeling, Analysis and Simulation of Computer and Telecommunication Systems (MASCOTS)

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Content Delivery Network (CDN) services largely affect the delivery quality perceived by users. While those services were initially offered by independent entities, some large Internet Service Providers (ISPs) now develop their own CDN activities to control costs and delivery quality. But this new activity is also a new source of revenues for those vertically integrated ISP-CDNs, which can sell those services to content providers. In this paper, we investigate the impact of having an ISP and a vertically-integrated CDN, on the main actors of the ecosystem (users, competing ISPs). Our approach is based on an economic model of revenues and costs, and a multilevel game-theoretic formulation of the interactions among actors. Our model incorporates the possibility for the vertically-integrated ISP to partially offer CDN services to competitors in order to optimize the trade-off between CDN revenue (if fully offered) and competitive advantage on subscriptions at the ISP level (if not offered to competitors). Our results highlight two counterintuitive phenomena: an ISP may prefer an independent CDN over controlling (integrating) a CDN; and from the user point of view vertical integration is preferable to an independent CDN or a no-CDN configuration. Hence, a regulator may want to elicit such CDN-ISP vertical integrations rather than prevent them.

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How Neutral is a CDN? An economic approach

Cited by 10 publications

References 9 publications

The Economics of CDNs and Their Impact on Service Fairness

The Economics of CDNs and Their Impact on Service Fairness

YouTube live and Twitch

Vertical Integration of CDN and Network Operator: Model and Analysis

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