Software Defined Wireless Backhaul for Small Cells



The forecasted traffic growth in mobile networks is one of the biggest challenges faced by the mobile industry. In addition, declining average revenues per user (ARPUs) and rising costs of ownership increase the difficulties for service providers to fulfill this upcoming demand. Densifying mobile networks by means of adding small cells, which have a limited footprint but high data rates, is seen as the most promising way to cope with this increasing demand. However, one of the biggest challenges to be solved for a successful deployment of such small cells is the question of backhauling, especially when in many cases the backhaul network is expected to be wireless. In delay tolerant mode the data is stored locally, to be delivered when a suitable network is reached. In cases of open data collection the devices in this Future Internet realm are targets of security attacks and might be vendor-locked with proprietary software stacks.

In the SESAME project, we plan to study how such a small cell wireless backhaul should be designed. In particular, SESAME proposes to apply software defined networking (SDN) techniques to the design of the wireless backhaul, which should allow service providers to:

  1. Have a common management framework for a potentially heterogeneous backhaul network.
  2. Allow a flexible and dynamic deployment of network services running on top of the backhaul network.
  3. Enable new business models such as those involving the sharing of the backhaul network among different service providers, hence reducing capital and operational expenditures. 

The work methodology followed in the SESAME project will be an experimental research approach, where the designed concepts and protocols will be evaluated by means of analysis, simulations and prototyping.  


-        Hurtado-Borras, A.; Pala-Sole, J.; Camps-Mur, D.; Sallent-Ribes, S., "SDN wireless backhauling for Small Cells," in Communications (ICC), 2015 IEEE International Conference on , vol., no., pp.3897-3902, 8-12 June 2015

-        Ferrandiz-Lahuerta, J.; Camps-Mur, D.; Paradells-Aspas, J; “A reliable asynchronous protocol for VLC communications based on the rolling shutter effect”, accepted for publication in Globecom 2015 (San Diego, USA, December 2015)

Este proyecto ha sido financiado por el Programa “Personas” (Acciones Marie Curie) del Séptimo Programa Marco de la Unión Europea (FP7/2007-2013) bajo el acuerdo de subvención de la REA nº 618098


The main innovation of SESAME is to bring together the areas of wireless backhauling and SDN, which have been so far disconnected, thus creating a homogeneous control plane for wired and wireless network agnostic to the specific hardware and access technology. Extending SDN into the wireless domain will be an emerging research area in the upcoming years, as already shown by early research works. 

Therefore, SESAME has the potential of impacting future research and even short to medium term network deployments due to the applicability of the proposed research.

De 10/2013 hasta 09/2017
Marie Curie Career Integration Grants (CIG)
Call: FP7-PEOPLE-2013-CIG
434.301 €