March 15, 2017

Can Metro Networks Be the Next Playground for (True) Elastic Optical Networks

  • Bigo S.
  • Dupas A.
  • Layec P.
  • Verchere D.

Metro networks, being at the meeting point between telecom operators and over-the-top service providers, are particularly well-suited to the introduction of some level of dynamics in the optical networks, leveraging elastic building blocks such as transponders and optical nodes. We review some metro networks challenges appealing for innovative solutions in the short-medium term. Today elastic optical networks are first overviewed with the most deployed application examples. We then highlight a few features of next generation of optical networks and outline the main road towards this next generation with network experiments and associated use cases.

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Recent Publications

May 22, 2017

Multidimensional Resource Allocation in NFV Cloud

  • Goldstein M.
  • Raz D.
  • Segall I.

Network Function Virtualization (NFV) is a new networking paradigm in which network functionality is implemented on top of virtual infrastructure deployed over COTS servers. One of the main motivations for the shift of telco operators into this paradigm is cost reduction, thus the efficient use of resources is an important ...

May 20, 2017

The Actual Cost of Software Switching for NFV Chaining

  • Caggiani Luizelli M.
  • Raz D.
  • Saar Y.
  • Yallouz J.

Network Function Virtualization (NFV) is a novel paradigm allowing flexible and scalable implementation of network services on cloud infrastructure. An important enabler for the NFV paradigm is software switching, which needs to satisfy rigid network requirements such as high throughput and low latency. Despite recent research activities in the field ...

May 08, 2017

Coexistence-aware dynamic channel allocation for 3.5 GHz shared spectrum systems

The paradigm of shared spectrum allows secondary devices to opportunistically access spectrum bands underutilized by primary owners. As the first step, the FCC targeted sharing the 3.5 GHz (3550–3700 MHz) federal spectrum with commercial systems. The proposed rules require a Spectrum Access System to implement a three-tiered spectrum management framework, ...