Wireless devices normally connect to a single access point, deployed at one location. The access points are deployed sparsely to create large cell regions, each controlled by the nearest access point. This architecture was conceived for mobile telephony and has been inherited by today’s networks, even if those mainly transfer wireless data. However, future wireless networks might be organized entirely differently. In this episode, Erik G. Larsson and Emil Björnson discuss how one can create cell-free networks consisting of distributed massive MIMO arrays. The vision is that each user will be surrounded by small access points that cooperate to provide uniformly high service quality. The conversation covers the key benefits, how the network architecture can be evolved to support the new technology, and what the main research challenges are. To learn more, they recommend the article “Ubiquitous Cell-Free Massive MIMO Communications” (https://jwcn-eurasipjournals.springeropen.com/track/pdf/10.1186/s13638-019-1507-0) and the new book “Foundations of User-Centric Cell-Free Massive MIMO” (https://www.nowpublishers.com/article/Details/SIG-109). Music: On the Verge by Joseph McDade. Visit Erik’s website https://liu.se/en/employee/erila39 and Emil’s website https://ebjornson.com/
20. Wireless Solutions for the Internet of Things (With Liesbet Van der Perre)
19. Future of Multi-Antenna Technology and Spectrum (With Thomas Marzetta)
18. Ever-Present Intelligent 6G Communications (With Magnus Frodigh)
17. Energy-Efficient Communications
16. 6G and the Physical Layer (with Angel Lozano)
15. Wireless for Machine Learning (with Carlo Fischione)
14. Q/A on MIMO, NOMA, and THz Communications
12. Privacy and Security in Connectivity (with Panos Papadimitratos)
11. Non-Orthogonal Multiple Access
10. Reaching the Terabit/s Goal
9. Q/A on Reconfigurable Intelligent Surfaces
8. Analog versus Digital Beamforming (with Bengt Lindoff)
7. Machine Learning for Wireless
6. Q/A on Massive MIMO
5. Millimeter Wave Communication
4. Is Wireless Technology Secure?
3. Reconfigurable Intelligent Surfaces
2. Myths About Massive MIMO
1. Massive MIMO: Where Do We Stand?
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