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
    Wireless Edge Factory - teaser produit - bcom b<>com Wireless Edge Factory

    Facilitateur de réseau mobile 5G privé

    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.

    our scientific publications

    17.06.2021

    A novel access control method via smart contracts for internet-based service provisioning

    The dramatic rise in internet-based service provisioning has highlighted the importance of deploying scalable access control methods, facilitating service authorization for eligible users. Existing centralized methods suffer from single-point-of-failure, low scalability, and high computational overhead. In addition, in these methods, users pay for the service provider as well as the network…

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    21.07.2021

    Efficient System Capacity User Selection Algorithm in MU-MIMO

    Radio resource allocation is a major research field in wireless networks. The main challenge is to find the most suitable user for each time and frequency resource to ensure the Quality of Service (QoS) requirements. The use of Massive Multiple-Input-Multiple-Output (MIMO) makes it possible to simultaneously schedule several users on the same time and frequency resources. This is a new paradigm…

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    20.04.2021

    Considering Sync Word and Header Error Rates for Performance Assessment in LoRa System

    This paper deals with a general and complete analysis of the frame error rate in LoRa system, not only considering the payload error rate, but also the sync word (carrying network information) and the header (carrying control information) error rates. It is proved that, in the high signal-to-noise ratio (SNR) range, it is more likely to reject a LoRa frame due to an erroneous sync word estimation…

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    20.04.2021

    Simple Asymptotic BER Expressions for LoRa System over Rice and Rayleigh Channels

    This paper deals with the bit error rate (BER) of LoRa signal over Rayleigh and Rice channels. Exact analytical expressions of the BER in LoRa systems have been proposed in the literature, but they are not tractable and raise problems of computation precision. This is mainly due to the fact that these expressions involve sums of binomial coefficients, leading to extremely large numbers and…

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