Many textbook models of communication systems assume that the transmitter and receiver are synchronized in time, frequency, and phase. Achieving and maintaining such synchronization is an often-overlooked practical challenge. However, the importance of synchronization grows as we plan to use larger antenna arrays and distributed MIMO in 6G. In this episode, Emil Björnson and Erik G. Larsson discuss some fundamental principles of synchronization, including the underlying physical phenomena, pilot signaling for phase synchronization, and reciprocity calibration. We especially discuss how the seemingly simplest angular beamforming can be among the hardest features to support from a synchronization perspective, with a digital array. More technical details in the papers https://arxiv.org/abs/2304.05144 and
https://arxiv.org/abs/2401.11730
Music: On the Verge by Joseph McDade. Visit Erik’s website https://liu.se/en/employee/erila39 and Emil’s website https://ebjornson.com/
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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