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On-the-Fly Routing and Traffic Self-Aggregation Towards Metro-Access Integration

Authors:
Rodolfo Enrique Alvizu Gómez
Mónica Karel Huerta
Ricardo Gonzales
Roger Clotet Martinez
Laura Vanessa Rodríguez Hernández
Idelfonso Tafur Monroy

Keywords: Future access network; on-the-fly Routing; Self-Aggregation; WDM PON; Metro-Access

Abstract:
The evolution and penetration of Optical Access Networks threatens to create a higher electronic bottleneck at Metro-Access interfaces caused by the ever increasing users’ bandwidth demand. Since most of the newest applications are dominated by video-related traffic, there is a pressing need to relieve the electronic bottleneck between Access and Metropolitan area networks. In this work we present an enhanced version of time-wavelength access architecture with on-the-fly routing and traffic self-aggregation. The purpose of this architecture is to allow for a transparent Metro-Access integration with low latency and reduced power consumption. A WDM PON (Passive Optical Network with Wavelength Division Multiple Access) architecture was used as reference for comparison. The results obtained by the simulation model developed in OPNET Modeler show that the WDM PON will tend to produce electronic bottleneck issues, even though delays and loss rates are not very different in both architectures. These bottleneck issues can be avoided by the use of on-the-fly routing and traffic self-aggregation, which allows traffic to cope with the strict requirements of delay sensible applications. The proposed architecture is an interesting useful approach for Metro-Access integration and future access networks.

Pages: 58 to 63

Copyright: Copyright (c) IARIA, 2011

Publication date: October 23, 2011

Published in: conference

ISSN: 2308-3484

ISBN: 978-1-61208-161-8

Location: Barcelona, Spain

Dates: from October 23, 2011 to October 29, 2011