Efficient techniques for energy saving in data center networks

Zina Chkirbene, Ala Gouissem, Rachid Hadjidj, Sebti Foufou, Ridha Hamila

Research output: Contribution to journalArticlepeer-review


Data centers are constructed with a huge number of network devices to support the expanding cloud based services. These devices are used to achieve the highest performance in case of full utilization of the network. However, the peak capacity of the network is rarely reached. Consequently, many devices are set into idle state and cause a huge energy waste leading to a non-proportionality between the network load and the energy consumed. In this paper, we propose a new approach to improve the efficiency of data centers in terms of energy consumption. Our approach exploits the correlation in time of the inter-node communication traffic and some topological features to maximize energy saving with only a minor increase in the average path length. Our approach dynamically controls the number of active communication links by turning off and on ports in the network (switches ports and nodes ports). Simulations results confirmed the energy saving gain procured by the proposed approach with a low impact on the average path length.

Original languageEnglish (US)
Pages (from-to)111-124
Number of pages14
JournalComputer Communications
StatePublished - Sep 2018


  • Average path length
  • Data center network
  • Energy consumption
  • Network topology
  • Scalability

ASJC Scopus subject areas

  • Computer Networks and Communications


Dive into the research topics of 'Efficient techniques for energy saving in data center networks'. Together they form a unique fingerprint.

Cite this