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Department of Communication Systems

The Department of Communication Systems (COS) focuses on education and research in the communication systems area in its widest sense. This includes, but is not limited to: technical and sustainability aspects of wireless and wired communication systems, as well as services such as high-speed data transfer, internet-of-things, sensing, localization, and intelligence at the edge. The technology focus lies on the antenna, physical, and Media Access and Control (MAC) layers as well as on implementation aspects across all layers.

Meet the department

News

Vitaly Petrov is appointed docent

Vitaly Petrov is appointed docent in communication systems

His docent lecture covered wireless communications in sub-THz and THz bands

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The Starlink satellite design being developed by SpaceX. Image: Wikimedia Commons.
The Starlink satellite design being developed by SpaceX. Image: Wikimedia Commons.

The students' report on Starlink has been downloaded over 7500 times

How is satellite-based internet affected by rain and time of day? KTH students Emil Fredriksson and Céline Careau investigated this in their thesis - and they got it right. Their report has now been d...

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Research behind the efficiency of mobile phone networks - one of the most highly cited

The research behind using mobile phone masts with many small electrically steerable antennas has been included in Clarivate's annual Clarivate Highly Cited Researchers 2023 list. ”This is of cours...

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Calendar

Recent publications

[1]
S. S. Sri Ganesh Seeram, "Non-Terrestrial Network Architecture and Design : Functional Splits, Handover Performance, and Service Availability," Licentiate thesis Stockholm : KTH Royal Institute of Technology, TRITA-EECS-AVL, 2025:98, 2026.
[2]
S. T. Islam et al., "Enhancing URLLC Availability in Multi-Connectivity Scenarios Using Deep Reinforcement Learning," in Proceedings 2025 Joint European Conference on Networks and Communications & 6G Summit (EuCNC/6G Summit), 2025, pp. 73-78.
[3]
H. Li et al., "AttentionGuard : Transformer-based Misbehavior Detection for Secure Vehicular Platoons," in PROCEEDINGS OF THE 2025 ACM WORKSHOP ON WIRELESS SECURITY AND MACHINE LEARNING, WISEML 2025, 2025, pp. 8-13.
[4]
X. Li et al., "Detecting Unauthorized Drones with Cell-Free Integrated Sensing and Communication," in 2025 IEEE WIRELESS COMMUNICATIONS AND NETWORKING CONFERENCE, WCNC, 2025.
[5]
A. Mahmoudi, M. Xiao and E. Björnson, "Accelerating Energy-Efficient Federated Learning in Cell-Free Networks With Adaptive Quantization," IEEE Transactions on Machine Learning in Communications and Networking, vol. 3, pp. 761-778, 2025.
Full list in the KTH publications portal