WiBACK: a back-haul network architecture for 5G networks

Abstract

Abstract-Recently both academic and industry world has started to define the successor of Long Term Evolution (LTE), so-called 5G networks, which will most likely appear by the end of the decade. It is widely accepted that those 5G networks will have to deal with significantly more challenging requirements in terms of provided bandwidth, latency and supported services. This will lead to not only modifications in access and parts of core networks, but will trigger changes throughout the whole network, including the Back-haul segment. In this work we present our vision of a 5G Back-haul network and identify the associated challenges. We then describe our Wireless Back-haul (WiBACK) architecture, which implements Software Defined Network (SDN) concepts and further extends them into the wireless domain. Finally we present a brief overview of our pilot installations before we conclude.

SDN in the wireless context - Towards full programmability of wireless network elements

“…Most of these challenges are due to the nature of wireless propagation channel and additional required features such as radio resource management. Our reference to initial attempts to address these challenges [9], [13], [14], [19] indicates that they will not be a major barrier against its successful adoption.…”

“…The research community, operators as well as equipment vendors better understand the fundamental principle of SDN and its adoption in wireless networks. Software defined wireless networks will certainly create the required enablers for the next generation of wireless networks and our case study for wireless backhaul networks is presented in [13].…”

“…Based on the literature review and from experience during implementation of centrally managed wireless backhaul heterogeneous networks ( [13], [14], [15]), we identified the following challenges that have to be addressed in designing an efficient SDWN. The challenges listed are not exclusive to wireless networks or SDN but are even more critical when considering SDWN.…”

Diseño de una red backhaul autogestionable para conectividad rural en Sucre -Colombia

“…Recientemente, organizaciones como Google LLC. con su proyecto Loon [8], la empresa de comunicaciones One Web con su proyecto One Web Satellite Constellation [9] y el Instituto Alemán Fraunhofer-Gesellschaft con su tecnología WiBACK [4], han avanzado en el desarrollo de tecnologías que pueden facilitar el acceso a las TIC y reducir la brecha digital. La tecnología WiBACK ha mostrado grandes avances en cuanto a la conexión de áreas rurales alrededor del mundo, proporcionando Internet de buen rendimiento a un bajo costo.…”

“…El presente documento se enfoca en el diseño de una red de retorno para extender la conectividad a las zonas rurales de los municipios de Ovejas y Chalán en el departamento de Sucre en Colombia. La estrategia de backhauling estudiada llamada WiBACK [4] fue presentada en 2016 por el Instituto Fraunhofer de Tecnología de Información Aplicada FIT y tiene la ventaja de estar diseñada con características de Redes Definidas por Software (SDN) [4]. Además, WiBACK permite una instalación rápida incluso en entornos geográficos difíciles como las zonas rurales colombianas.…”