Robustness and energy efficiency – a logical multi‐topology scheme for time‐varying traffic in IP networks. Issue 3 (1st May 2015)

• Record Type: Journal Article
• Authors: Wang, Jin; Wang, Sheng; Xu, Shizhong
• Is Part Of: IET networks. Volume 4:Issue 3(2015)
• Page Start: 169
• Page End: 174
• Publication Date: 2015-05-01
• Subjects: telecommunication network topology -- telecommunication traffic -- IP networks -- matrix algebra -- optimisation -- energy conservation; three‐phase algorithm -- IP links -- robust Internet protocol networks -- actual IP networks -- synthetic network -- logical topologies -- critical traffic matrices -- energy saving optimisation -- link weight setting -- local search heuristic algorithm -- time‐varying critical traffic matrices -- different traffic periods -- sleep mode -- time‐varying traffic -- energy efficient -- logical multitopology scheme; Computer network architectures -- Periodicals; Computer network protocols -- Periodicals; Information networks -- Periodicals; Telecommunication systems -- Periodicals; 004.605
• DOI: 10.1049/iet-net.2014.0005
• Languages: English
• ISSNs: 2047-4954

Abstract

Abstract : This study deals with a strategy to save energy in an Internet protocol (IP) network allowing different subsets of IP links to be put in the sleep mode during different traffic periods. The proposed solution involves a three‐phase algorithm. In the first phase, time‐varying critical traffic matrices from a large collection of real traffic matrices are obtained. In the second phase, a local search heuristic algorithm is utilised that is based on the link weight setting for the energy‐saving optimisation corresponding to the critical traffic matrices. In the last phase, the real traffic flows are routed with the corresponding logical topologies. According to the performance studies that are conducted in a synthetic network and actual IP networks, this approach can achieve significantly improved energy efficiency while certain max link utilisation performance specifications and requirements are satisfied.