Kist, Alexander A. and Aldraho, Abdelnour (2011) Dynamic topologies for sustainable and energy efficient traffic routing. Computer Networks, 55 (9). pp. 2271-2288. ISSN 1389-1286
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Official URL: http://dx.doi.org/10.1016/j.comnet.2011.03.008
Identification Number or DOI: doi: 10.1016/j.comnet.2011.03.008
In light of the global focus on greenhouse gas emissions, energy consumption of communication networks has become an important research area. Networks are major energy consumers and are generally dimensioned for peak loads. For extended periods, resources consume power, but are lightly or unused. This research investigates the concept of dynamic topologies, i.e. networks that adapt their topology according to traffic volume. The key aim of this study is to investigate power reductions that can be achieved by dynamic topologies. It proposes a network transformation and introduces mathematical programming models that results in energy optimal topologies for given traffic loads. This paper focuses on the optimisation problems and investigates gains in static environments. Numerical results are presented for example networks using a large set of traffic matrices. For the test networks, dynamic topologies reduce the average network power consumption, depending on the network load, by approximately 12-52%.
|Item Type:||Article (Commonwealth Reporting Category C)|
|Additional Information:||Permanent restricted access to published version due to publisher copyright policy.|
|Uncontrolled Keywords:||energy efficient networking; network optimisation; network transformation; dynamic topologies|
|Fields of Research (FOR2008):||09 Engineering > 0906 Electrical and Electronic Engineering > 090609 Signal Processing|
10 Technology > 1005 Communications Technologies > 100503 Computer Communications Networks
01 Mathematical Sciences > 0101 Pure Mathematics > 010112 Topology
|Socio-Economic Objective (SEO2008):||B Ecomonic Development > 85 Energy > 8507 Energy Conservation and Efficiency > 850799 Energy Conservation and Efficiency not elsewhere classified|
|Deposited On:||21 Jun 2011 21:54|
|Last Modified:||14 Jun 2012 09:11|
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