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Communications
About Domain
<p>In this domain, we bring together advanced expertise that enables us to develop faster, more secure, and adaptable networks – essential for ensuring future connectivity and accelerating digital transformation across strategic sectors. Our core areas of expertise include:</p>
Communications Technologies
Mobile Communications
Intelligent Communication Systems
Internet of Things
Challenges
<p>The forthcoming wave of mobile and wireless communications will revolutionise the landscape through ubiquitous multimodal sensing and localisation, service-oriented software architectures, the deployment of autonomous systems, including drones and high-altitude platforms, pervasive artificial intelligence, and the integration of edge and cloud computing. These technologies are key to facilitating on-demand virtual and physical networks, thus enabling a seamless, interconnected world. Our team is driven by the dual goals of addressing the need for bandwidth-intensive and latency-sensitive applications and bridging the connectivity gap for the unconnected, whether machines or humans.</p>
Main achievements
<p>Our research in Communications is driving the future of wireless networks; INESC TEC advancements are making communications faster, more reliable, and efficient – both on land and in space – positioning us at the forefront of 6G networks. Some of our key achievements include:</p>
Advanced algorithms for intelligent aerial networks
<p>We develop innovative algorithms for aerial communication networks, with advancements in positioning control, routing, and active queue management. These solutions optimise throughput, latency, and resource allocation, surpassing the state of the art. They include traffic- and energy-sensitive approaches, promoting more efficient, reliable, and sustainable networks, even in extreme environments.</p>
Advances in ultra-wideband communications
<p>We created innovative solutions for ultra-high-frequency communication systems: a transceiver with a novel architecture (<a href="https://www.sciencedirect.com/science/article/abs/pii/S143484111930370X" target="_blank">publication</a>), optical modulation of a resonant tunnelling diode at 79 GHz (<a href="https://opg.optica.org/oe/fulltext.cfm?uri=oe-27-12-16791&id=413242" target="_blank">publication</a>), and a new method for designing planar antennas at 300 GHz (<a href="https://www.researchgate.net/publication/352814443_Design_of_Passive_Components_for_Microwave_Photonics-based_Millimetre_Wave_Systems" target="_blank">publication</a>), introducing new possibilities for mmWave communications.</p>
Digital Twins for wireless networks
<p>We created advanced simulation models based on real data and artificial intelligence, enabling the reproduction of real-world communication scenarios and testing solutions in both terrestrial and non-terrestrial environments. These tools include <i>trace-driven</i> and <i>machine learning</i>-based models in the ns-3 simulator (more <a href="https://ieeexplore.ieee.org/document/8923120" target="_blank">here</a>, <a href="https://dl.acm.org/doi/10.1145/3532577.3532607" target="_blank">here</a>, and <a href="https://dl.acm.org/doi/10.1145/3592149.3592150" target="_blank">here</a>).</p>
Compact and Efficient Antennas
<p>We contribute to the miniaturization and efficiency of antennas used in Bluetooth Low Energy (BLE) systems and beam-steering. We developed a compact and optimised antenna for BLE, based on an inductively loaded meander line (<a href="file:///C:/MeusDocumentos/CTM/coordenacao/gestao-ciencia/SD-Communications/conteudos-website/10.1109/IMOC43827.2019.9317657%5d" target="_blank">publication</a>). We also created a beam-steering antenna design methodology that reduces the number of components required for active reflector antennas by 25% (<a href="https://ieeexplore.ieee.org/document/9711512" target="_blank">publication</a>).</p>