Title :
Improved algorithm for low cost lightpath assignment in mixed line rates WDM networks
Author :
Skovajsa, D. ; Beghelli, A.
Author_Institution :
Electron. Eng. Dept., Univ. Tec. Federico Santa Maria, Valparaiso, Chile
Abstract :
In this paper a new heuristic algorithm for cost-effective lightpath assignment in mixed line rates WDM networks based on a light trail architecture is proposed. The algorithm improves the performance of a previous heuristic by exploiting the volume discount provided by high-rate lightpaths and the ability of longer paths to groom future traffic demands. Results show that the proposed algorithm is able to achieve a network cost as low as 52% of the cost of the previous proposal.
Keywords :
optical fibre networks; telecommunication traffic; wavelength division multiplexing; cost-effective lightpath assignment; heuristic algorithm; high-rate lightpath; light trail architecture; low cost lightpath assignment; mixed line rates WDM network; network cost; optical WDM network; traffic demand; Algorithm design and analysis; Bit rate; Heuristic algorithms; Resource management; Telecommunication traffic; Topology; WDM networks; Optical WDM networks; light trail networks; lightpath allocation; mixed line rates networks;
Conference_Titel :
Networks and Optical Communications (NOC), 2012 17th European Conference on
Conference_Location :
Vilanova i la Geltru
Print_ISBN :
978-1-4673-0949-3
Electronic_ISBN :
978-1-4673-0950-9
DOI :
10.1109/NOC.2012.6249947
