Energy Efficient Content Distribution

Araújo, Júlio; Giroire, Frédéric; Mouliérac, Joanna; Liu, Yaning; Modrzejewski, Remigiusz

doi:10.1093/comjnl/bxv095

Cited by 14 publications

(22 citation statements)

References 39 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Also Ref. [9] exploits caching in core nodes, focusing on the definition of efficient strategies to switch off caches and links. We adopt similar approaches, but focus especially on caching in metro and access nodes, and investigate on the impact of FMC in reducing the network energy consumption.…”

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)

View full text Add to dashboard Cite

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.

show abstract

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)

View full text Add to dashboard Cite

show abstract

“…[8][9] [10] are among the first works showing how replicating contents towards the users can help in jointly reducing the latency for content retrieval and improving the energy efficiency of VoD delivery. All these works refer to solutions in which contents are moved closer to the users but still replicated in the core segment of the network.…”

Section: Related Workmentioning

confidence: 99%

“…With respect to Refs. [8][9] [10], our work mainly focus on the core-traffic offloading (by moving contents even closer to the users in the metro and access networks) and latency aspects while only partially focusing on energy efficiency.…”

Section: Related Workmentioning

confidence: 99%

Performance evaluation of video server replication in metro/access networks

et al. 2015

View full text Add to dashboard Cite

Internet traffic is increasingly becoming a media-streaming traffic. Especially, Video-on-Demand (VoD) services are pushing the demand for broadband connectivity to the Internet, and optical fiber technology is being deployed in the access network to keep up with such increasing demand. To provide a more scalable network architecture for video delivery, network operators are currently considering novel metro/access network architectures which can accommodate replicated video servers directly in their infrastructure. When servers for VoD delivery are placed nearer to the end users, part of the traffic can be offloaded from the core segment of the network, and the end users can experience better Quality of Service (QoS). While the deployment of caching systems for traffic offloading has been studied in the core network, no work has already investigated the potential performance gains by replicating the content in the metro/access segment of the network, even closer to the users. In our work, we will compare the performance of video server replication in different metro/access network architectures, i.e. a metro ring architecture and a tree-based architecture, by considering both active and passive technologies. We will evaluate using both simulative and analytical methodologies how content providers could benefit from the deployment of replicas of video servers in terms of blocking probability of the VoD requests.

show abstract

“…Ref. [8] propone un ILP para la distribución de contenido eficiente enérgicamente: en este caso, todos los nodos del backbone disponen de algunas capacidades de almacenamiento caché y el modelo identifica la solución con mayor eficiencia energética, que permite ahorrar energía apagando algunos enlaces y algunos caches. Incluso en este trabajo (como en Ref.…”

Section: Trabajos Relacionadosunclassified

An Energy-Efficient Strategy for VoD Content Replication in Integrated Metro/Access Networks

Savi

Verticale

Tornatore

et al. 2015

IEEE Latin Am. Trans.

View full text Add to dashboard Cite

Abstract-The Video-on-Demand (VoD) service is becoming one the most popular Internet services. Due to its bandwidthconsuming nature and thanks to the efforts made by telecom operators to provide the users with higher access rates, an huge amount of VoD traffic is expected to flood the core segment of the network, potentially leading to congestion and Quality of Experience degradation issues. A growing body of research is studying how to alleviate such traffic explosion. One of the most promising solutions consists in migrating the content in the metro and access segments of the network by deploying a system of Metro Servers (MSes) for VoD delivery. This way, the VoD traffic is kept as local as possible and the core network is trafficoffloaded. This paper investigates one of the most prominent risks by adopting this solution: in fact, if not carefully managed, a massive deployment of MSes in the network can lead to a significant increase of the overall energy consumption of the network. We first identify a consistent power model for the MSes and the network equipment in an integrated metro/access architecture scenario, then we define a strategy to switch on and off the network interfaces and the MSes depending on the VoD traffic load variation during the day. We show by means of simulations how our strategy always strikes the best trade-off between the energy consumption for content transport through the network and the energy consumption for processing and storage in the MSes.

show abstract

Energy Efficient Content Distribution

Cited by 14 publications

References 39 publications

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

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

Performance evaluation of video server replication in metro/access networks

An Energy-Efficient Strategy for VoD Content Replication in Integrated Metro/Access Networks

Contact Info

Product

Resources

About