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/
40. Synchronization of Massive Antenna Arrays
39. Radio Stripes at Terahertz (With Parisa Aghdam)
38. Things We Learned at the 6G Symposium
37. Wireless Future Panel Discussion (Live Podcast)
36. 6G from an Operator Perspective
35. Ten Challenges on the Road to 6G
34. How to Achieve 1 Terabit/s over Wireless?
33. Reproducible Wireless Research
32. Information-Theoretic Foundations of 6G (With Giuseppe Caire)
31. Analog Modulation and Over-the-Air Aggregation
30. The Sionna Library for Link-Level Simulations (With Jakob Hoydis)
29. Six 6G Technologies: The cases for and against
28. Ultra-Reliable Low-Latency Communication (With Petar Popovski)
27. Open Air Interface (With Florian Kaltenberger)
26. Network Slicing
25. What Models are Useful?
24. Q&A With 5G and 6G Predictions
23. Wireless Localization and Sensing (With Henk Wymeersch)
22. Being Near or Far in Wireless
21. Wireless Coverage Without Beamforming
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