کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
446011 693287 2013 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Differentiated quality-of-protection in survivable WDM mesh networks using p-structures
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر شبکه های کامپیوتری و ارتباطات
پیش نمایش صفحه اول مقاله
Differentiated quality-of-protection in survivable WDM mesh networks using p-structures
چکیده انگلیسی

In this paper, we develop a design methodology of survivable Wavelength Division Multiplexing (WDM) networks based on pre-configured protection structures (p-structures) to support multiple classes of Quality-of-Protection (QoP). We elaborate a generic mathematical optimization method that could be used to provide n   QoP levels RiRi (i = 1, … , n  ) provided that the network topology is (n+1)-(n+1)-connected. The added value of the p-structure approach is studied through the analysis of the required protection capacity to efficiently meet the needs of the supported n QoP levels. Furthermore, the protection capabilities and shapes of the protection building blocks of the p-structure and p-cycle schemes are compared to each others in order to gain an insight into how the flexibility of the p-structure scheme helps in meeting the requirements of multiple QoP levels.The computation results show that, depending on the network connectivity, up to 150% of protection capacity can be saved if p-structures are used rather than p-cycles. The analysis of the shapes of the optimal p-structures shows that, depending on the targeted QoP levels, the optimal mix of p-structures is very often composed of large and small structures with high and low protection capabilities, respectively.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computer Communications - Volume 36, Issue 6, 15 March 2013, Pages 621–629
نویسندگان
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