Anders E. Kalør

About

I am a postdoctoral researcher in the Wireless@HKU research group at The University of Hong Kong, supported by an International Postdoc grant from the Independent Research Fund Denmark. Concurrently, I am affiliated with the Connectivity section at Aalborg University. I received the M.Sc. and the Ph.D. degrees from Aalborg University in 2017 and 2022, respectively. I was awarded the Spar Nord Foundation Research Award for my Ph.D. project (2023). In 2017 I visited Robert Bosch GmbH in Stuttgart, Germany, and in 2020 King’s College London, United Kingdom. I have an amateur radio license (OZ0AEK/VR2XAK) and, when time permits, I enjoy being practical with software-defined radio, antennas, channel/source coding, etc.

Research

My research interests are centered around communication theory and wireless communications for 6G and beyond. Recently, I have been focusing on timely communication, designing protocols for massive IoT, and providing ultra-reliable connectivity. My current activities lie in the intersection between wireless communications, machine learning and data mining for IoT.

News

Apr. 2023

I received the Spar Nord Foundation Research Award 2023 for my Ph.D. project (link in Danish).

Dec. 2022

I presented the work on Massive ARQ protocols at the Future of Communications Annual Workshop of the Villum Investigator Grant “WATER”.

Nov. 2022

I started as a visiting researcher in Kaibin Huang’s Wireless@HKU group at the University of Hong Kong, where I will spend one year.

May 2022

I successfully defended my Ph.D. thesis, “Methods for Massive, Reliable, and Timely Access for Wireless Internet of Things (IoT)”.

Feb. 2022

I gave a talk on Massive ARQ protocols to the German Aerospace Center (DLR).

Feb. 2022

Our article “Kan din IoT-enhed holde ti år på AA-batterier?” (“Can your IoT device last ten years on AA batteries?”) has been published in the Danish magazine Ingeniøren [paywall].

Nov. 2021

I gave a talk on edge computing at the DeiC Conference 2021 in Vejle, Denmark.

Publications

Journal papers

1. Delivering ultra-reliable low-latency communications via statistical radio maps

   T. Kallehauge, A. E. Kalør, P. Ramìrez-Espinosa, M. Guillaud, and P. Popovski.

   IEEE Wireless Communications, vol. 30, no. 2, pp. 14-20, 2023.

   DOI: 10.1109/MWC.002.2200372 Preprint

2. Query timing analysis for content-based wake-up realizing informative IoT data collection

   J. Shiraishi, A. E. Kalør, F. Chiariotti, I. Leyva-Mayorga, P. Popovski, and H. Yomo.

   IEEE Wireless Communications Letters, vol. 12, no. 2, pp. 327-331, 2023.

   DOI: 10.1109/LWC.2022.3225333 Preprint

3. Timely monitoring of dynamic sources with observations from multiple wireless sensors

   A. E. Kalør, and P. Popovski.

   IEEE/ACM Transactions on Networking, early access, 2022.

   DOI: 10.1109/TNET.2022.3212794 Preprint

4. Traffic prediction and fast uplink for hidden Markov IoT models

   E. Eldeeb, M. Shehab, A. E. Kalør, P. Popovski, and H. Alves.

   IEEE Internet of Things Journal, vol. 9, no. 18, pp. 17172-17184, 2022.

   DOI: 10.1109/JIOT.2022.3195067 Preprint

5. Common message acknowledgments: Massive ARQ protocols for wireless access

   A. E. Kalør, R. Kotaba, and P. Popovski.

   IEEE Transactions on Communications, vol. 70, no. 8, pp. 5258-5270, 2022.

   DOI: 10.1109/TCOMM.2022.3182398 Preprint

6. A perspective on time toward wireless 6G

   P. Popovski, F. Chiariotti, K. Huang, A. E. Kalør, M. Kountouris, N. Pappas, and B. Soret.

   Proceedings of the IEEE, vol. 110, pp. 1116-1146, 2022.

   DOI: 10.1109/JPROC.2022.3190205 Preprint

7. Scheduling of sensor transmissions based on value of information for summary statistics

   F. Chiariotti, A. E. Kalør, J. Holm, B. Soret, and P. Popovski.

   IEEE Networking Letters, vol. 4, no. 2, pp. 92-96, 2022.

   DOI: 10.1109/LNET.2022.3172591 Preprint

8. Query age of information: Freshness in pull-based communication

   F. Chiariotti, J. Holm, A. E. Kalør, B. Soret, S. Jensen, T. Pedersen, and P. Popovski.

   IEEE Transactions on Communications, vol. 70, no. 3, pp. 1606-1622, 2022.

   DOI: 10.1109/TCOMM.2022.3141786 Preprint

9. RAN slicing performance tradeoffs: Timing versus throughput requirements

   F. Chiariotti, I. Leyva-Mayorga, Č. Stefanović, A. E. Kalør, and P. Popovski.

   IEEE Open Journal of the Communications Society, vol. 3, pp. 622-640, 2022.

   DOI: 10.1109/OJCOMS.2022.3164733 Preprint

10. How to identify and authenticate users in massive unsourced random access

    R. Kotaba, A. E. Kalør, P. Popovski, I. Leyva-Mayorga, B. Soret, M. Guillaud, and L. Ordóñez.

    IEEE Communications Letters, vol. 25, no. 12, pp. 3795-3799, 2021.

    DOI: 10.1109/LCOMM.2021.3118882 Preprint

11. Prediction of mmWave/THz link blockages through meta-learning and recurrent neural networks

    A. E. Kalør, O. Simeone, and P. Popovski.

    IEEE Wireless Communications Letters, vol. 10, no. 12, pp. 2815-2819, 2021.

    DOI: 10.1109/LWC.2021.3118269 Preprint

12. Inference over wireless IoT links with importance-filtered updates

    I. Nikoloska, J. Holm, A. E. Kalør, P. Popovski, and N. Zlatanov.

    IEEE Transactions on Cognitive Communications and Networking, 2021.

    DOI: 10.1109/TCCN.2021.3104287 Preprint

13. Stochastic resource optimization of random access for transmitters with correlated activation

    C. Zheng, M. Egan, L. Clavier, A. E. Kalør, and P. Popovski.

    IEEE Communications Letters, vol. 25, no. 9, pp. 3055-3059, 2021.

    DOI: 10.1109/LCOMM.2021.3090110 Preprint

14. Spectrum slicing for multiple access channels with heterogeneous services

    F. Chiariotti, I. Leyva-Mayorga, Č. Stefanović, A. E. Kalør, and P. Popovski.

    Entropy, no. 6, 2021.

    DOI: 10.3390/e23060686 Preprint

15. Trusted wireless monitoring based on distributed ledgers over NB-IoT connectivity

    L. Nguyen, A. E. Kalør, I. Leyva-Mayorga, and P. Popovski.

    IEEE Communications Magazine, vol. 58, no. 6, pp. 77-83, 2020.

    DOI: 10.1109/MCOM.001.2000116 Preprint

16. Communication aspects of the integration of wireless IoT devices with distributed ledger technology

    P. Danzi, A. E. Kalør, R. Sørensen, A. Hagelskjær, L. Nguyen, Č. Stefanović, and P. Popovski.

    IEEE Network, vol. 34, no. 1, pp. 47-53, 2020.

    DOI: 10.1109/MNET.001.1900180 Preprint

17. Minimizing the age of information from sensors with common observations

    A. E. Kalør, and P. Popovski.

    IEEE Wireless Communications Letters, vol. 8, no. 5, pp. 1390-1393, 2019.

    DOI: 10.1109/LWC.2019.2919528 Preprint

18. Delay and communication tradeoffs for blockchain systems with lightweight IoT clients

    P. Danzi, A. E. Kalør, Č. Stefanović, and P. Popovski.

    IEEE Internet of Things Journal, vol. 6, no. 2, pp. 2354-2365, 2019.

    DOI: 10.1109/JIOT.2019.2906615 Preprint

19. Network slicing in industry 4.0 applications: Abstraction methods and end-to-end analysis

    A. E. Kalør, R. Guillaume, J. Nielsen, A. Mueller, and P. Popovski.

    IEEE Transactions on Industrial Informatics, vol. 14, no. 12, pp. 5419-5427, 2018.

    DOI: 10.1109/TII.2018.2839721 Preprint

Conference papers

1. A decentralized policy for minimization of age of incorrect information in slotted ALOHA systems

   A. Nayak, A. E. Kalør, F. Chiariotti, and P. Popovski.

   Accepted to IEEE ICC, 2023.

   Preprint

2. Predictive rate selection for ultra-reliable communication using statistical radio maps

   T. Kallehauge, P. Ramìrez-Espinosa, A. E. Kalør, and P. Popovski.

   Proc. 2022 IEEE global communications conference (GLOBECOM), pp. 4989-4994, 2022.

   DOI: 10.1109/GLOBECOM48099.2022.10001531 Preprint

3. Unsourced multiple access for heterogeneous traffic requirements

   K. Ngo, G. Durisi, A. Amat, P. Popovski, A. E. Kalør, and B. Soret.

   Proc. 56th asilomar conference on signals, systems, and computers, pp. 687-691, 2022.

   DOI: 10.1109/IEEECONF56349.2022.10051987

4. Stochastic resource allocation for outage minimization in random access with correlated activation

   C. Zheng, M. Egan, L. Clavier, A. E. Kalør, and P. Popovski.

   Proc. 2022 IEEE wireless communications and networking conference (WCNC), pp. 1635-1640, 2022.

   DOI: 10.1109/WCNC51071.2022.9771709 Preprint

5. Unsourced random access with authentication and joint downlink acknowledgements

   R. Kotaba, A. E. Kalør, P. Popovski, I. Leyva-Mayorga, B. Soret, M. Guillaud, and L. Ordóñez.

   Proc. 55th asilomar conference on signals, systems, and computers, pp. 1496-1501, 2021.

   DOI: 10.1109/IEEECONF53345.2021.9723269

6. Remote anomaly detection in industry 4.0 using resource-constrained devices

   A. E. Kalør, D. Michelsanti, F. Chiariotti, Z. Tan, and P. Popovski.

   Proc. 2021 IEEE 19th international workshop on signal processing advances in wireless communications (SPAWC), pp. 251-255, 2021.

   DOI: 10.1109/SPAWC51858.2021.9593188 Preprint

7. Freshness on demand: Optimizing age of information for the query process

   J. Holm, A. E. Kalør, F. Chiariotti, B. Soret, S. Jensen, T. Pedersen, and P. Popovski.

   Proc. 2021 IEEE international conference on communications (ICC), pp. 1-6, 2021.

   DOI: 10.1109/ICC42927.2021.9500894 Preprint

8. Slicing a single wireless collision channel among throughput- and timeliness-sensitive services

   I. Leyva-Mayorga, F. Chiariotti, Č. Stefanović, A. E. Kalør, and P. Popovski.

   Proc. 2021 IEEE international conference on communications (ICC), pp. 1-6, 2021.

   DOI: 10.1109/ICC42927.2021.9500253 Preprint

9. Traffic prediction based fast uplink grant for massive IoT

   M. Shehab, A. Hagelskjær, A. E. Kalør, P. Popovski, and H. Alves.

   Proc. 2020 IEEE annual international symposium on personal, indoor and mobile radio communications (PIMRC), pp. 1-6, 2020.

   DOI: 10.1109/PIMRC48278.2020.9217258 Preprint

10. Ultra-reliable communication for services with heterogeneous latency requirements

    A. E. Kalør, and P. Popovski.

    Proc. 2019 IEEE globecom workshops (GC wkshps), pp. 1-6, 2019.

    DOI: 10.1109/GCWkshps45667.2019.9024507 Preprint

11. Repeat-authenticate scheme for multicasting of blockchain information in IoT systems

    P. Danzi, A. E. Kalør, Č. Stefanović, and P. Popovski.

    Proc. 2019 IEEE globecom workshops (GC wkshps), pp. 1-7, 2019.

    DOI: 10.1109/GCWkshps45667.2019.9024468 Preprint

12. Massive random access with common alarm messages

    K. Stern, A. E. Kalør, B. Soret, and P. Popovski.

    Proc. 2019 IEEE international symposium on information theory (ISIT), pp. 1-5, 2019.

    DOI: 10.1109/ISIT.2019.8849678 Preprint

13. Random access schemes in wireless systems with correlated user activity

    A. E. Kalør, O. Hanna, and P. Popovski.

    Proc. 2018 IEEE 19th international workshop on signal processing advances in wireless communications (SPAWC), pp. 1-5, 2018.

    DOI: 10.1109/SPAWC.2018.8445866 Preprint

14. Analysis of the communication traffic for blockchain synchronization of IoT devices

    P. Danzi, A. E. Kalør, Č. Stefanović, and P. Popovski.

    Proc. 2018 IEEE international conference on communications (ICC), pp. 1-7, 2018.

    DOI: 10.1109/ICC.2018.8422485 Preprint

15. Statistical multiplexing of computations in C-RAN with tradeoffs in latency and energy

    A. E. Kalør, M. Agurto, N. Pratas, J. Nielsen, and P. Popovski.

    Proc. 2017 IEEE international conference on communications workshops (ICC workshops), pp. 772-777, 2017.

    DOI: 10.1109/ICCW.2017.7962752 Preprint

Book chapters

1. Statistical characterization of URLLC: Frequentist and bayesian approaches

   T. Kallehauge, P. Ramìrez-Espinosa, A. E. Kalør, and P. Popovski.

   Ultra-reliable and low-latency communications (URLLC) theory and practice: Advances in 5G and beyond, pp. 15-59, 2023.

   DOI: 10.1002/9781119818366.ch2