Cost Benefit Analysis of Elastic and Mixed Line Rate Optical Network
Models
- Reinhardt Rading
Abstract
Network traffic continues to grow at more than 30 percent per year and
we either have to install new optical infrastructures or upgrade our
optical networks to meet the increasing demands. Installing new fibers
seems very costly the network operators considering the heterogeneity of
optical networks with some consumers requiring low bit rate and others
requiring high bit rate demands. As an alternative, we can use the
existing fiber infrastructure to meet the traffic demands by aggregating
both high and low bit rate demands or using a single type of
rate-tunable technology to handle the increasing demands. This paper
analyzes the two planning strategies-all period planning and incremental
planning- for allocating resources in an increasing traffic and shows
the pros and cons that a network operator may experience in case of
using either elastic or mixed line rate optical networks.