کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
10428505 909209 2016 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Spectrum and energy-efficient survivable routing algorithm in elastic optical network
ترجمه فارسی عنوان
طیف و الگوریتم مسیر یابی زنده ماندن در شبکه نوری الاستیک
کلمات کلیدی
شبکه های نوری انعطاف پذیر، ذخیره انرژی، تقلید کردن، زنده ماندن،
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی (عمومی)
چکیده انگلیسی
Traditional Wavelength-Division-Multiplexing (WDM) optical networks, which allocate spectrum resource in a fixed grid, may lead to inefficient resource utilization, low flexibility and high energy consumption. Therefore, by introducing the Orthogonal Frequency Division Multiplexing (OFDM) technology to the spectrum elastic optical networks could utilize spectrum resources efficiently. This paper established a power consumption model in spectrum elastic optical networks. Both dedicated and shared path protection were studied with static traffic demand under 6 different modulation modes. Considering the energy consumption of the network, a Routing and Modulation Level Spectrum Allocation (RMLSA) algorithm is proposed. In this algorithm, power saving can be achieved by dynamically adapting the number of bandwidth variable-transponders according to the chosen modulation level. Furthermore the paper proposed Spectrum Efficient RMLSA (SERMLSA) to make a trade-off between the energy consumption and the fragmentation. Based on the SERMLSA algorithm, we also proposed Allowing n fragments spectrum efficient RMLSA (AnSERMLSA) algorithm which allowed the fragments in certain limitation to save more energy. Simulation results showed that, in terms of energy saving and spectrum utilization, the proposed SERMLSA and AnSERMLSA heuristic algorithms reflected good performances in energy saving and defragmentation.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optik - Volume 127, Issue 20, October 2016, Pages 8795-8806
نویسندگان
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