Title :
Flexible Bandwidth Allocation in Filterless Optical Networks
Author :
Zhenyu Xu ; Tremblay, Christine ; Archambault, Emile ; Furdek, Marija ; Jiajia Chen ; Wosinska, Lena ; Belanger, Michel P. ; Littlewood, Paul
Author_Institution :
Dept. of Electr. Eng., Ecole de Technol. Super., Montréal, QC, Canada
Abstract :
We introduce the new concept of an elastic filterless optical network and propose an efficient heuristic algorithm for solving the static routing and spectrum assignment problem. Our simulation results obtained for different network topologies under multi-period traffic show increasing bandwidth savings with the growth of traffic load compared to a fixed-grid scenario. We also show the benefits of periodical spectrum defragmentation.
Keywords :
bandwidth allocation; optical communication; telecommunication network topology; elastic filterless optical network; flexible bandwidth allocation; multiperiod traffic; network topologies; periodical spectrum defragmentation; spectrum assignment problem; static routing problem; Bandwidth; Network topology; Optical fiber networks; Optical filters; Optical transmitters; Routing; Transponders; Elastic optical networking; WDM; filterless networks; flex-grid; flexible grid; routing and spectrum assignment (RSA);
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2015.2394401
