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Posts

Future Blog Post

less than 1 minute read

Published: January 01, 2199

This post will show up by default. To disable scheduling of future posts, edit config.yml and set future: false.

Blog Post number 4

less than 1 minute read

Published: August 14, 2015

This is a sample blog post. Lorem ipsum I can’t remember the rest of lorem ipsum and don’t have an internet connection right now. Testing testing testing this blog post. Blog posts are cool.

Blog Post number 3

less than 1 minute read

Published: August 14, 2014

This is a sample blog post. Lorem ipsum I can’t remember the rest of lorem ipsum and don’t have an internet connection right now. Testing testing testing this blog post. Blog posts are cool.

Blog Post number 2

less than 1 minute read

Published: August 14, 2013

This is a sample blog post. Lorem ipsum I can’t remember the rest of lorem ipsum and don’t have an internet connection right now. Testing testing testing this blog post. Blog posts are cool.

Blog Post number 1

less than 1 minute read

Published: August 14, 2012

This is a sample blog post. Lorem ipsum I can’t remember the rest of lorem ipsum and don’t have an internet connection right now. Testing testing testing this blog post. Blog posts are cool.

portfolio

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publications

Interference mitigation based on precoded SRS

Published in IEEE Sensor Array and Multichannel Signal Processing Workshop (SAM), 2016

Recommended citation: L. R. Costa, D. C. Moreira, S. Sandberg, A. Simonsson and Y. C. B. Silva, "Interference mitigation based on precoded SRS," 2016 IEEE Sensor Array and Multichannel Signal Processing Workshop (SAM), Rio de Janeiro, Brazil, 2016, pp. 1-5, doi: 10.1109/SAM.2016.7569712.
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Radio resource allocation in multi-cell and multi-service mobile network based on QoS requirements.

Published in Computer Communications, 2019

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User Grouping Based on Spatial Compatibility for Dynamic-TDD Cooperative Networks

Published in 2018 IEEE Global Communications Conference (GLOBECOM), 2019

Recommended citation: L. R. Costa, D. C. Moreira, Y. C. B. Silva, W. C. Freitas and F. R. M. Lima, "User Grouping Based on Spatial Compatibility for Dynamic-TDD Cooperative Networks," 2018 IEEE Global Communications Conference (GLOBECOM), Abu Dhabi, United Arab Emirates, 2018, pp. 1-6, doi: 10.1109/GLOCOM.2018.8647677.
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Beam Allocation based on Spatial Compatibility for Hybrid Beamforming C-RAN Networks

Published in Beam Allocation based on Spatial Compatibility for Hybrid Beamforming C-RAN Networks,, 2019

Recommended citation: L. R. Costa, Y. C. B. Silva, F. R. M. Lima and A. Klein, "Beam Allocation based on Spatial Compatibility for Hybrid Beamforming C-RAN Networks," WSA 2019; 23rd International ITG Workshop on Smart Antennas, Vienna, Austria, 2019, pp. 1-6.
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Interference Mitigation for Dynamic TDD Networks Employing Sounding Signals

Published in Journal of Communication and Information Systems, 2020

Recommended citation: Moreira, D. C., Costa, L. R., Silva, Y. C. B., & Guerreiro, I. M. (2020). Interference Mitigation for Dynamic TDD Networks Employing Sounding Signals. Journal of Communication and Information Systems, 35(1), 320–332. https://doi.org/10.14209/jcis.2020.32
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UE-SIDE BEAM SELECTION PROCEDURE (WO2023113666A1)

Published in WIPO (PCT), 2021

There is provided mechanisms for assisting a UE-side beam selection procedure. A method is performed by a network node. The method comprises estimating TRP-side angular information of a UE from uplink signalling received from the UE at a TRP of the network node. The method comprises reporting the TRP-side angular 5 information towards the UE and configuring the UE to perform a UE-side beam selection procedure based on the TRP-side angular information.

ANGLE OF ARRIVAL ESTIMATION IN A WIRELESS COMMUNICATION SYSTEM (WO2025080175)

Published in WIPO (PCT), 2023

There is provided techniques for angle of arrival estimation. A method is performed by a first transceiver device. The first transceiver device comprises a dual-polarization physical antenna array. The method comprises receiving a first reference signal from a second transceiver device. The method comprises estimating channel gains for each polarization of the dual-polarization physical antenna array. The method comprises receiving a second reference signal from the second transceiver device. The method comprises estimating the angle of arrival of the second reference signal from two measurements of the second reference signal and based on a cross-polarization ratio of channel components as estimated from the channel gains.

Network performance evaluation of a sub-THz downlink system operating under dynamic DTX

Published in IEEE Transactions on Vehicular Technology, 2025

Recommended citation: E. M. S. de Santana, I. M. Guerreiro, L. R. Costa, A. Landström and A. Simonsson, "Network Performance Evaluation of a Sub-THz Downlink System Operating Under Dynamic DTX," in IEEE Transactions on Vehicular Technology, vol. 74, no. 7, pp. 11132-11142, July 2025, doi: 10.1109/TVT.2025.3545277.
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