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.
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.
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.
11.19.2020
Low-complexity sub-optimal cell ID estimation in NB-IoT system
The cell identity (ID) estimation is one of the essential steps performed by the narrowband-internet of things (NB-IoT) user equipment (UE) during its initial access to the network. The cell ID value is carried by the narrowband secondary synchronisation signal (NSSS) that is periodically transmitted in even radio frames. In this study, the authors proposed a novel technique of cell ID estimation…
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04.07.2020
DFT-based low-complexity optimal cell ID estimation in NB-IoT
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04.27.2020
On the Computation of Integrals of Bivariate Gaussian Distribution
This paper deals with the computation of integrals of centred bivariate Gaussian densities over any domain defined as an angular sector of R 2. Based on an accessible geometrical approach of the problem, we suggest to transform the double integral into a single one, leading to a tractable closed-form expression only involving trigonometric functions. This solution can also be seen as the angular…
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09.29.2020
A Tutorial on NB-IoT Physical Layer Design
The Internet of things (IoT) is transforming the whole of society. It represents the next evolution of the Internet and will significantly improve the ability to gather and analyze data, as well as the ability to control devices remotely. In this respect, the usage of connected devices is continuously growing with the expansion of the applications being offered to individuals and industries. To…
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