We propose a new metric called hubbedness to describe traffic flow in modern optical
networks. We compare theoretical savings of point-to-multipoint vs point-to-point …

Optical and mobile broadband services have been widely adopted to support various
applications including center-to-end and end-to-end communications. This raises further …

In an evolutionary metro network scenario, it is proposed to adopt flexi-grid technologies and
centralize the IP functionality, locating the Broadband Remote Access Servers (BRASes) in …

Hierarchical metro and core network designs, which dominate today's networks, become
increasingly cost-inefficient as traffic grows. In this paper we show that flat architectures are …

Abstract SOA-based O, S, C and L-band OADMs are experimentally verified for providing
optical transparency between metro aggregation nodes and far-edge OLTs. Results with 28 …

Ultra-Dense Wavelength Division Multiplexing (UDWDM) is a candidate for future Passive
Optical Networks (PONs) to sustain the increase of access traffic, providing enhanced …

This article introduces a modified version of clustering techniques that can be applied in
traffic aggregation for point-to-multipoint optical network architectures employing digital …

Coherent optical communication has been well established as the technology of choice for
long haul and high bit rate communication systems since a decade ago. Recent technology …

This work elaborates on: i) why the sliceable bandwidth variable transceiver (S-BVT)
represents a key enabler for next-generation optical metro networks; ii) how it should be …