Home // AICT 2017, The Thirteenth Advanced International Conference on Telecommunications // View article
Authors:
Yuki Sato
Tomotaka Kimura
Kouji Hirata
Masahiro Muraguchi
Keywords: Dynamic Lightpath Establishment, Spectrum Alloca- tion Method, Elastic Optical Path Networks
Abstract:
In this paper, we propose a dynamic lightpath establish method for elastic optical path networks (EONs). EONs provide flexible frequency slot allocation and signal modulation. In EONs, a routing, modulation level, and spectrum allocation (RMLSA) problem is one of the most important technical issues. If routes, modulation formats, and frequency slots are appropriately determined for lightpaths, the spectrum efficiency is enhanced and the blocking probability of connection requests are reduced. To solve the RMLSA problem quickly and effectively, our proposed method focuses on the maximum spectrum utilization. The proposed method aims at smoothing the spectrum utilization of each link and alleviating the fragmentation of frequency slots by selecting routes, modulation formats, and frequency slots for new connections based on the maximum spectrum utilization. Through simulation experiments, we show that the proposed method effectively reduces the blocking probability of connection requests under the dynamic situations where connection requests dynamically are generated and released.
Pages: 19 to 24
Copyright: Copyright (c) IARIA, 2017
Publication date: June 25, 2017
Published in: conference
ISSN: 2308-4030
ISBN: 978-1-61208-562-3
Location: Venice, Italy
Dates: from June 25, 2017 to June 29, 2017