Energy-minimized design for IP over WDM networks under modular router line cards

Lui, Yunlei; Shen, Gangxiang; Shao, Weidong

doi:10.1109/iccchina.2012.6356890

Cited by 8 publications

(6 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In , the authors study the energy‐aware design of multi‐shelf IP over WDM networks, by analyzing the power consumption of different components, including multi‐shelf IP core routers, reconfigurable optical add drop multiplexer, and WDM line system; then, they propose a two‐step MILP design model, which provides sufficient design details for implementation. Moreover, in , the authors evaluate the energy consumption of an IP over WDM network assuming a router with modular ports and provide an MILP formulation for minimizing energy consumption utilizing the lightpath bypass (transparency) concept. Energy minimization in translucent WDM optical networks is addressed in , proposing an algorithm to reduce the energy‐consuming regenerators, amplifiers, add/drop terminals, and so on.…”

Section: Related Workmentioning

confidence: 99%

Energy‐minimized design of IP over flexible optical networks

Gkamas

Christodoulopoulos

Vergados

et al. 2015

Int J Communication

View full text Add to dashboard Cite

SUMMARYEnergy efficiency is an important desirable property for optical networks and a key parameter for the sustainability of the future Internet. In this work, we consider the energy-minimized design problem for IP over flexible optical networks. We provide an energy-aware multilayer network-planning algorithm, which takes as input the network topology, the IP end-to-end traffic matrix, the modular model of the IP/MPLS routers, and the feasible configurations of the flexible optical transponders. The algorithm serves the demands for their requested rates by placing router modules, selecting the paths in the IP topology, and the corresponding paths and spectrum slots in the underlying optical topology, together with the flexible optical transponders' transmission configurations. The algorithm's objective is to minimize the network's energy consumption, jointly accounting for the energy consumption of the routers' modules installed, the transponders used, and their configurations. Using realistic energy consumption and network traffic models, we evaluate the energy savings obtained when the proposed algorithm is applied to a flexible network, as opposed to a mixed-line-rate wavelength division multiplexing optical network. Moreover, we consider two optimization scenarios, comparing the joint energy consumption optimization of IP and optical layers to a sequential optimization of the energy consumed at these two layers.

show abstract

Section: Related Workmentioning

confidence: 99%

Energy‐minimized design of IP over flexible optical networks

Gkamas

Christodoulopoulos

Vergados

et al. 2015

Int J Communication

View full text Add to dashboard Cite

show abstract

“…The performance of these two scenarios in terms of energy consumption and bandwidth utilization will be investigated in later section. We have also included multi-hop opaque lightpath bypass scenario discussed in [5] where a combination of O-E-O transponders and DXCs allow for implementation of full wavelength conversion at each node. It relieves wavelength continuity constraint and reduces the complex RWA problem to a simple routing problem.…”

Section: Core Network Modelmentioning

confidence: 99%

Optimized Design of Energy-Efficient IP Over WDM Networks

Madani¹

2013

Proceedings of the 3rd International Conference on Electric and Electronics

View full text Add to dashboard Cite

A surge of interest toward design and implementation of green networks are emerging in recent years. One obvious trend to reduce energy consumption of major active network components is to craft backbone network architecture that takes into consideration traffic grooming of low-rate IP traffic as well as power-aware virtual topology design schemes and RWA. Previous research efforts developed design strategies which assumed digital processing of incoming traffic flows at ever node structure in the optical layer (DXCs). This architecture provides full wavelength conversion capability by the use of optical transponders (OEO convertors) thus reduces complicated RWA problem to a simple routing problem at the cost of sacrificing lightpath transparency. Moreover, introduction of transponders give rise to extra sources of power consumption which contrasts over goal. In this paper, energy-minimized design of IP over WDM networks based on optical cross connects (OXCs) is investigated. Integer linear programming formulation for two design strategies viz. multi-hop lightpath and direct lightpath have been developed and their performance with regard to power consumption and bandwidth utilization are compared with prior studies. Simulation results indicate superior performance of the proposed multi-hop transparent lightpath strategy.

show abstract

“…Increased demand for diversification also provides more intelligent requirements for system protection and control [5]. Therefore, the efficient fast voltage control method of DN has received more and more attention [6, 7].…”

Section: Introductionmentioning

confidence: 99%