Abstract: The advent of spatial processing in multiantenna wireless communications has transformed the design of mobile networks allowing us to meet the tremendous demands for data and services in mobile applications. Signal processing techniques implemented in base-band transceivers enables the efficient exploitation of radio spectrum, increased gain to improve coverage, more reliable and secure transmissions and improved energy efficiency. We will focus on the challenges of spatial precoding techniques implemented on the transmit side of wireless systems. Early developments on transmit beamforming and spatial division multiple access will be reviewed as well as space-time coding and more recent developments on symbol-level precoding. The process from early results reported in the academic literature to experimental validation, standardization and commercialization will be emphasized.
Björn Ottersten received the Ph.D. degree in electrical engineering from Stanford University, Stanford, CA. In 1991 he was appointed Professor of Signal Processing at the Royal Institute of Technology (KTH), Stockholm. Currently, Dr. Ottersten is Director for the Interdisciplinary Centre for Security, Reliability and Trust at the University of Luxembourg. Dr. Ottersten has received the IEEE Signal Processing Society Technical Achievement Award, the IEEE Communications Society Satellite Communications Distinguished Service Award, the EURASIP Group Technical Achievement Award, and is a two time recipient of the European Research Council advanced research grant. His research interests include signal processing, wireless communications, radar systems, and computer vision.