External Funded Partner Professor Thomas Eriksson received a PhD degree in Information Theory in 1996, from Chalmers University of Technology, Gothenburg, Sweden. From 1990 to 1996, he was at Chalmers. In 1997 and 1998, he was at AT&T Labs – Research in Murray Hill, NJ, USA, and in 1998 and 1999 he was at Ericsson Radio Systems AB, Kista, Sweden. Since 1999, he has been at Chalmers University, where he is currently a professor in communication systems. His research interests include communication, data compression, and modeling and compensation of non-ideal hardware components (e.g. amplifiers and oscillators in communication transmitters and receivers). He is also responsible for massive MIMO testbed activities at Chalmers. Assistant Professor Mattias Thorsell received the Ph.D. degree in microwave electronics in 2011 from Chalmers University of Technology, Gothenburg, Sweden. He is currently an assistant professor in microwave electronics at Chalmers University. His research interests are nonlinear characterisation and modelling of microwave transistors, as well as nonlinear measurement systems. Assistant Professor Koen Buisman leads Work Package 2 on Traceability of MIMO measurements