Defragmentation-Based Capacity Enhancement for Fixed to Flexible-Grid Migration Scenarios in DWDM Networks

نویسندگان

  • António Eira
  • João Pires
  • Daniel Fonseca
  • Juan Fernández-Palacios
  • Víctor López
  • Stefan Spaelter
چکیده

This paper investigates the most favorable conditions for a full defragmentation procedure when evolving from a fixed to a flexible-grid scenario. Results show that migrating legacy channels to flexible-grid formats can yield up to 50% more capacity for future traffic, provided these legacy channels are also spectrally re-planned.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Forecasting Capital Investment for Fixed-Telephony Network Switching Equipment in Tandem with NGN Migration Using Cobb-Douglas Model

This paper tries to estimate the capital investment required for the fixed-telephony network switching equipment as demanded by the fourth national development plan. As a first step, the Cobb-Douglas model is used as a successful demand forecasting model to estimate the demand over the target years. Then, an architectural plan is developed for the fixed-telephony switching network that takes in...

متن کامل

Forecasting Capital Investment for Fixed-Telephony Network Switching Equipment in Tandem with NGN Migration Using Cobb-Douglas Model

This paper tries to estimate the capital investment required for the fixed-telephony network switching equipment as demanded by the fourth national development plan. As a first step, the Cobb-Douglas model is used as a successful demand forecasting model to estimate the demand over the target years. Then, an architectural plan is developed for the fixed-telephony switching network that takes in...

متن کامل

An Analytical Approach to Computing Blocking Probabilities in Flexi-Grid Optical Networks

Due to the analytical complexity of routing and spectrum allocation policies – random-fit and first-fit, in flexigrid optical networks, it is necessary to analyze the approximate blocking probabilities. To this end, we present a novel model for reduced link state occupancy, whereby each state of a Markov chain represents the total occupied spectrum slices in a flexi-grid optical link. Using the...

متن کامل

Flexible Scheduling of Active Distribution Networks for Market Participation with Considering DGs Availability

The availability of sufficient and economic online capacity to support the network while encountering disturbances and failures leading to supply and demand imbalance has a crucial role in today distribution networks with high share of Distributed Energy Resources (DERs), especially Renewable Energy Resources (RESs). This paper proposes a two-stage decision making framework for the Distribution...

متن کامل

Software-Defined Fragmentation-Aware Elastic Optical Networks Enabled by OpenFlow

We present a software-defined fragmentation-aware elastic optical network, in which an extended OpenFlow-based control plane intelligently routes connection requests to avoid spectrum fragmentation. The overall feasibility and efficiency of the proposed scenario is validated by using both numerical simulation and experimental demonstration. Introduction Optical networks are evolving from a fixe...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2013