دانلود رایگان مقاله طراحی توپولوژی مجازی صرفه جویی در انرژی در IP در شبکه های مش WDM

عنوان فارسی
طراحی توپولوژی مجازی صرفه جویی در انرژی در IP در شبکه های مش WDM
عنوان انگلیسی
Energy-efficient virtual topology design in IP over WDM mesh networks
صفحات مقاله فارسی
0
صفحات مقاله انگلیسی
14
سال انتشار
2016
نشریه
الزویر - Elsevier
فرمت مقاله انگلیسی
PDF
کد محصول
E834
رشته های مرتبط با این مقاله
مهندسی کامپیوتر و مهندسی فناوری اطلاعات
گرایش های مرتبط با این مقاله
شبکه های کامپیوتری
مجله
شبکه های کامپیوتر - Computer Networks
دانشگاه
دانشگاه علم و فناوری الکترونیکی چین، چنگدو، روابط چین
کلمات کلیدی
IP بر WDM، بهره وری انرژی، توپولوژی مجازی
۰.۰ (بدون امتیاز)
امتیاز دهید
چکیده

Abstract


Energy efficiency has been well recognized as an important objective in design of IP over WDM mesh networks. While previous works always focus on energy minimization through green routing and resource provisioning, the comprehensive performances of the two-layer network cannot be guaranteed. This would be not good for realization of energy-efficient networking methods. In this paper, we first study the problem of getting a good tradeoff between the three-part network comprehensive performances: energy efficiency, resource efficiency and cross-layer survivability efficiency for IP over WDM mesh networks under the static traffic demand. We present the virtual-link energy model for two-layer networks. The energy model is computed from the power consumption value of commercial network devices. Based on the energy-aware two-layer auxiliary graph, we propose a new Energy-Efficient Virtual Topology Design (E2VTD) scheme. The novelty of our proposed E2VTD scheme is mainly twofold as following: the first is the energy-efficient virtual link direct mapping and rerouting and the second is the cross-layer survivability improvement for energy-efficient virtual topology. We use extensive simulations to demonstrate the efficiency of our proposed E2VTD scheme. It is shown that the network comprehensive performances are significantly improved for two-layer networks. Compared with the previous algorithms, network energy consumption is reduced by about 39.8%, network resource is reduced by about 28.2%, and cross-layer topology survivability can be enhanced by about 35.7% in average.

نتیجه گیری

6. Conclusion


In this paper, we have investigated the problem of energyefficient topology design for IP over WDM mesh networks. In particular, we propose a novel scheme, namely, E2VTD, for getting a good tradeoff between energy efficiency, resource efficiency and cross-layer survivability efficiency. Our proposed scheme includes two main algorithms. The VLDMR algorithm first initializes the energy-efficient virtual topology by establishing direct virtual links for multi-granularity connections, then reroutes the connections on low-utilization virtual links to further diminish network energy. The ECSI algorithm improves cross-layer survivability of virtual topology by remapping virtual links onto physical links. Simulation results demonstrate the good performance of the E2VTD scheme. Compared with the previous algorithms, network energy consumption is reduced by about 39.8%, network resource is reduced by about 28.2%, and cross-layer topology survivability can be enhanced by about 35.7% in average.


بدون دیدگاه