کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5449418 1512527 2017 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Spectrum-space-divided spectrum allocation approaches in software-defined elastic optical networks
ترجمه فارسی عنوان
رویکردهای تخصیص طیف طیفی-فضایی در شبکه های نوری کشف شده توسط نرم افزار
کلمات کلیدی
شبکه های نوری الاستیسیته تعریف شده توسط نرم افزار، تخصیص طیف، فضای طیفی، اختصاص مسیر حفاظت،
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد مواد الکترونیکی، نوری و مغناطیسی
چکیده انگلیسی
Recently, the architecture of elastic optical network (EON) has been proposed as a candidate solution to accommodate both huge bandwidth requirements and flexible connections in next generation optical networks. In order to improve the spectrum efficiency, we propose different spectrum-space-divided approaches and develop two integer linear programming (ILP) models and several spectrum-space-divided spectrum allocation approaches with and without dedicated-path protection in software-defined elastic optical networks (SD-EONs). Simulation results show that the ILP models achieve better performance in terms of the number of frequency slots and hop counts than the proposed spectrum-space-divided spectrum allocation approaches with and without dedicated-path protection under the static scenario of connection requests. Furthermore, we apply the spectrum-space-divided spectrum allocation approaches with and without dedicated-path protection to reduce the blocking probability and to improve spectrum efficiency under the dynamic connection requests compared to the traditional first-fit spectrum allocation approach in SD-EONs.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optics Communications - Volume 396, 1 August 2017, Pages 228-238
نویسندگان
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