By Topic

Online lightpath provisioning and critical services: New IA-RWA algorithms to assure QoT and survivability

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

4 Author(s)
Adami, D. ; Dept. of Inf. Eng., Univ. of Pisa, Pisa, Italy ; Giordano, S. ; Pagano, M. ; Zuliani, L.G.

Wavelength Routed Photonic (or all-optical) Networks (WRPNs) with an intelligent control plane will play a key role in providing the proper ground for future Internet applications. However, classic Routing and Wavelength Assignment (RWA) solutions are inadequate to be adopted by WRPNs. The main issues regard physical impairments and QoT, processing time and setup delay, lightpath (LP) survivability and minimization of resource allocation. In case of critical services provisioning, LPs must have tight QoT guarantees, even in case of network instability and failures. This work presents two new impairment-aware RWA (IA-RWA) algorithms, specifically tailored for the provisioning of critical services. These algorithms guarantee absolute bandwidth and Bit Error Rate (BER) for LPs, assuring survivability in case of single network failures. A high parallelizable, combined RWA engine minimizes resource utilization without increasing setup time. The performance of the proposed algorithms are evaluated with respect to a modified version of a previously proposed IA-RWA algorithm that takes into account QoT and survivability.

Published in:

High Performance Switching and Routing (HPSR), 2011 IEEE 12th International Conference on

Date of Conference:

4-6 July 2011