Tutorial 8: Very Large MIMO Systems

Presented by

Erik G. Larsson and Fredrik Tufvesson


Very large MIMO (VLM) refers to using antenna arrays with an order of magnitude more elements than in systems being built today, say a hundred antennas or more. VLM is a new research field both in communication theory, propagation, and electronics. The ultimate vision of VLM is that the antenna array would consist of small active antenna units, each transmitting with a very low power. In cellular systems, VLM offers the prospect of increasing rates and reliability by an order of magnitude, and saving an order of magnitude in transmit power at the same time. In this tutorial we will examine the challenges and opportunities associated with scaling up MIMO technology to using very large antenna arrays, especially in the context of cellular communications.

Speaker Biography

Erik G. Larsson received his Ph.D. degree from Uppsala University, Sweden, in 2002. Since 2007, he is Professor and Head of the Division for Communication Systems in the Department of Electrical Engineering (ISY) at Linköping University (LiU) in Linköping, Sweden. He has previously been Associate Professor (Docent) at the Royal Institute of Technology (KTH) in Stockholm, Sweden, and Assistant Professor at the University of Florida and the George Washington University, USA.

His main professional interests are within the areas of wireless communications and signal processing. He has published some 70 journal papers on these topics, he is co-author of the textbook Space-Time Block Coding for Wireless Communications (Cambridge Univ. Press, 2003) and he holds 10 patents on wireless technology.

He is Associate Editor for the IEEE Transactions on Communications and he has previously been Associate Editor for several other IEEE journals. He is a member of the IEEE Signal Processing Society SAM and SPCOM technical committees. He is active in conference organization, most recently as the Technical Chair of the Asilomar Conference on Signals, Systems and Computers 2012 and Technical Program co-chair of the International Symposium on Turbo Codes and Iterative Information Processing 2012.

Fredrik Tufvesson received his Ph.D. in 2000 from Lund University in Sweden. After almost two years at a startup company, Fiberless Society, Fredrik is now associate professor at the department of Electrical and Information Technology. His main research interests are channel measurements and modeling for wireless communication, including channels for both MIMO and UWB systems. Beside this, he also works on distributed antenna systems, radio based positioning and with his company, Hepkie, on wireless search and rescue equipment.

Fredrik is currently associate editor for IEEE Transactions on Wireless Communications and has authored and co-authored around 30 journal papers, 90 conference papers and a few book chapters.