Search Results for author: Erika Fonseca

Found 4 papers, 0 papers with code

Mobility for Cellular-Connected UAVs: challenges for the network provider

no code implementations25 Feb 2021 Erika Fonseca, Boris Galkin, Marvin Kelly, Luiz A. DaSilva, Ivana Dusparic

Unmanned Aerial Vehicle (UAV) technology is becoming more prevalent and more diverse in its application.

Networking and Internet Architecture

Experimental Evaluation of a UAV User QoS from a Two-Tier 3.6GHz Spectrum Network

no code implementations6 Nov 2020 Boris Galkin, Erika Fonseca, Gavin Lee, Conor Duff, Marvin Kelly, Edward Emmanuel, Ivana Dusparic

Our results show that increasing the UAV height reduces the performance in both tiers, due to issues such as antenna misalignment.

Networking and Internet Architecture

Radio Access Technology Characterisation Through Object Detection

no code implementations27 Jul 2020 Erika Fonseca, Joao F. Santos, Francisco Paisana, Luiz A. DaSilva

In contrast to other \ac{ML} methods that can only provide the class of the monitored \acp{RAT}, the solution we propose can recognise not only different \acp{RAT} in shared spectrum, but also identify critical parameters such as inter-frame duration, frame duration, centre frequency, and signal bandwidth by using object detection and a feature extraction module to extract features from spectrograms.

General Classification Object +2

Adaptive Height Optimisation for Cellular-Connected UAVs using Reinforcement Learning

no code implementations27 Jul 2020 Erika Fonseca, Boris Galkin, Ramy Amer, Luiz A. DaSilva, Ivana Dusparic

On the other hand, BS density can negatively impact UAV QoS, with higher numbers of BSs generating more interference and deteriorating UAV performance.

reinforcement-learning Reinforcement Learning (RL)

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