On the Energy Efficiency of Content Delivery Architectures

Guan, Kyle; Atkinson, Gary; Kilper, Daniel C.; Gülşen, Ece

doi:10.1109/iccw.2011.5963557

Cited by 72 publications

(50 citation statements)

References 7 publications

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“…[14] claims that CCN is even more energy-efficient than a traditional CDN. [15] refines this claim by revealing the dependency on content popularity and catalog size. In this paper, we consider only the CDN architecture and don't take the location of the cache servers into account.…”

Section: Related Workmentioning

confidence: 86%

A Simulator to Assess Energy-Saving Techniques in Content Distribution Networks

Bostoen

Napper

Mullender

et al. 2014

Energy-Efficient Data Centers

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Abstract. The scalable and bandwidth-efficient delivery of IPTV services to an increasingly diverse set of screens requires the deployment of telco content distribution networks (CDNs). These CDNs are composed of cache servers located in the telco's data centers close to the end user. The additional cache servers need to be designed for energy efficiency to limit the increase of data-center energy consumption. We analyze real HTTP adaptive-streaming traces from an operational telco CDN delivering IPTV to mobile devices to identify workload characteristics that can be exploited to conserve energy. We also present a trace-driven simulator that models the energy consumption of such a CDN down to the level of the cache-server disk to evaluate potential energy-saving techniques. The traces reveal cyclic load fluctuations that can be exploited to save energy in CDNs by varying the number of powered cache servers and disks according to the load.

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Section: Related Workmentioning

confidence: 86%

A Simulator to Assess Energy-Saving Techniques in Content Distribution Networks

Bostoen

Napper

Mullender

et al. 2014

Energy-Efficient Data Centers

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show abstract

“…We assume that the number of different contents provided by a content provider is F, ranked from 1 (the most popular) to F (the least popular) based on its popularity [13,14]. By letting the total number of requests in a given time duration t be R, the number of requests to the content of popularity k, K r , follows a Zipf-like distribution as…”

Section: Content Popularity Modelmentioning

confidence: 99%

A novel energy efficiency algorithm in green mobile networks with cache

Qiu

Zhao

et al. 2015

J Wireless Com Network

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With more devices and emerging data-intensive services, mobile data traffic grows explosively, which makes the energy efficiency issue in current and future wireless networks be a growing concern. Recently, the advantages of bringing caching scheme in wireless networks have been widely investigated. Although additional power consumption is incurred by deploying caching equipments, the traffic loading balance of radio access network (RAN) and total network delay will be improved. In this paper, we study the energy efficiency problem in future wireless network. Particularly, we give an energy-delay tradeoff algorithm by using the sleeping control and power matching scheme. In the proposed algorithm, we consider a N-based sleeping control scheme, where the base station (BS) is in the sleep state whenever there is no arriving user, and works again when N users arrive. Moreover, the proposed algorithm is suitable for multi-BS scenario; to simplify the analysis, we mainly consider the single case. Simulation results shows that the proposed algorithm can obviously reduce the network power and delay in heterogeneous network conditions. Moreover, we find that a larger cache size does not always obtain a less network cost, because more cache power is consumed as cache size increases.

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“…Refs. [11] [12] show how a CCN approach can be energy-efficient, especially when popular contents are delivered. Though we do not focus on CCN, these works are relevant as we gather the assumption that every network equipment can be equipped with storage capabilities.…”

Section: A Related Workmentioning

confidence: 99%

Energy-efficient caching for Video-on-Demand in Fixed-Mobile Convergent networks

Savi

Ayoub

Musumeci

et al. 2015

2015 IEEE Online Conference on Green Communications (OnlineGreenComm)

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Abstract-The success of novel bandwidth-consuming multimedia services such as Video-on-Demand (VoD) is leading to a tremendous growth of the Internet traffic. Content caching can help to mitigate such uncontrolled growth by storing video content closer to the users in core, metro and access network nodes. So far, metro and especially access networks supporting mobile and fixed users have evolved independently, leveraging logically (and often also physically) separate infrastructures; this means that mobile users cannot access caches placed in the fixed access network (and vice-versa), even if they are geographically close to them, and energy consumption implications of such undesired effect must be investigated. We define an optimization problem modeling an energy-efficient placement of caches in core, metro and fixed/mobile access nodes of the network. Then, we show how the evolution towards a Fixed-Mobile Converged metro/access network, where fixed and mobile users can share caches, can reduce the energy consumed for VoD content delivery.

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On the Energy Efficiency of Content Delivery Architectures

Cited by 72 publications

References 7 publications

A Simulator to Assess Energy-Saving Techniques in Content Distribution Networks

A Simulator to Assess Energy-Saving Techniques in Content Distribution Networks

A novel energy efficiency algorithm in green mobile networks with cache

Energy-efficient caching for Video-on-Demand in Fixed-Mobile Convergent networks

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