Considering transmission impairments in Routing Wavelength Assignment algorithms

نویسندگان

  • R. Cardillo
  • V. Curri
  • M. Mellia
چکیده

We face the Routing and Wavelength Assignment problem considering as constraints the physical impairments that arise in all-optical networks. We propose a simple model for the physical layer considering both static and dynamic impairments. It is based on simulation of signal propagation in order to characterize each lightpath with a reliability parameter.

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

A Novel Protection Guaranteed, Quality of Transmission Aware Routing and Wavelength Assignment Algorithm for All-optical Networks

Transparent All Optical Networks carry huge traffic and any link failure can cause the loss of gigabits of data; hence protection and its guarantee becomes necessary at the time of failure. Many protection schemes were presented in the literature, but none of them speaks about protection guarantee. Also, in all optical networks, due to absence of  regeneration capabilities, the physical layer i...

متن کامل

Impairment Aware Based Routing and Wavelength Assignment in Transparent Long Haul Networks

We investigate new routing and wavelength assignment algorithms considering as constraints physical impairments that arise in transparent networks. Accounting both linear and nonlinear impairments we propose a scheme that integrates the routing and wavelength assignment to achieve an optimal combination of physical and networking performance. Through simulations of a typical long haul network t...

متن کامل

Signal-Quality Consideration for Dynamic Connection Provisioning in All- Optical Wavelength-Routed Networks

We investigate new connection-provisioning algorithms to efficiently provide signal-quality-guaranteed connections in an all-optical WDM mesh network. In the all-optical network, signal degradations incurred by nonideal transmission medium accumulate along a lightpath. When the signal degradation reaches a certain level, the connection is not usable and is blocked due to transmission impairment...

متن کامل

A Survey on Static Routing Wavelength Assignment Considering Physical Layer Impairments in Wavelength Divison Multiplexing Optical Networks

Imagine a world of people who are connected through networks either they are far or close to each other and they could communicate in just “planks time”(that is believed to be the possible shortest duration) by paying less and obtaining great speed to communicate, this is just what the researchers are trying to obtain these days. One of the major problems facing optical networks is Routing and ...

متن کامل

Quality of Transmission and Protection Schemes in Hybrid WDM Optical Networks Qualité de transmission et protection dans les réseaux WDM hybrides

Many investigations have been carried out in the field of path protection and restoration in WDM optical networks. Most of these studies neglect the impact of physical layer impairments on routing and wavelength assignment strategies, and more specifically on protection strategies. Actually, an optical signal undergoes throughout its route many transmission impairments. In the absence of 3R reg...

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 2005