Advanced Connectivity

Communication systems are experiencing a major change being driven by their convergence on technologies drawn from information systems: Network programming, virtualization, and now cloudification, flexibility, and speed of deployment.

Labo bcom - Connectivite avancée
© Fred Pieau
To become proficient in high-quality end-to-end services, meet the needs of various industries, and offer a better user experience, it is necessary to find solutions for broadband mobile and IoT that are coordinated with access networks and core networks alike.

The Advanced Connectivity lab is helping this change come about by designing software and hardware solutions ranging from radio access (massive MIMO, millimeter waves, new FECs) to core network infrastructure (SDN architecture, CUPS, and micro-services) that can address these new needs. The lab relies on expanded areas of skill such as radio, signal processing, systems on-chip (SoC), Software-Defined Radio (SDR) platforms, software development, and cloud infrastructure. It handles these subjects by offering architecture upgrades that restructure the functions toward the Edge network.

Olivier Choisy - bcom
© Fred Pieau

Olivier Choisy

Advanced Connectivity lab Manager

Drawing on the findings of many mobile network research projects over the past 5 years, we have the ingredients to accelerate development for the xG plan and 5G sovereignty.
products & services
private 5G networks dome b<>com Dome

<la 5G privée antifragile>

Flexible Netlab - teaser produit - bcom b<>com *xG Testbed* services

Experience a full-scale 5G/IoT journey

Wireless Family - teaser produit - bcom Wireless family

A family of software radio products for developing your own transmitting/receiving channel

Spare Cloud Allocator - teaser produit - bcom b<>com Spare Cloud Allocator

A smart and private collaborative solution to get the best of unused IT resources.

scientific publications

09.06.2024

Spatial Precoding in Frequency Domain for Multi-User MIMO Affine Frequency Division Multiplexing

This paper deals with the potential of affine frequency division multiplexing (AFDM) to operate within a multi-user multi-input multi-output (MU-MIMO) system, facilitated by spatial precoding preformed in frequency domain. To this end, we take advantage of the fact that AFDM based on discrete affine Fourier transform (DAFT) can be rewritten as a discrete Fourier transform (DFT)-based precoded…

read the publication

07.22.2024

Special Cases of DFT-Based Modulation and Demodulation for Affine Frequency Division Multiplexing

This paper deals with discrete Fourier transform (DFT)-based modulation and demodulation techniques for affine frequency division multiplexing (AFDM), as opposed to using the discrete affine Fourier transform (DAFT). This allows for a simple (de)modulation process based on the usual DFT, enabling the interpretation of AFDM as a precoded orthogonal frequency division multiplexing (OFDM) waveform…

read the publication

11.13.2023

Flexible 5G gNB Implementation for Easy Tactical Deployment: a Focus on the Radio Unit

This paper deals with the implementation of a light fifth generation (5G) base station (gNB) intended for specific use cases requiring an airborne deployment of the network. We focus on the radio unit (RU) and give details on the components, the implementations, and the technical choices that have been made, driven by the strong constraints inherent to the considered use cases.

read the publication