Millimeter Wave Communications in 5G and Towards 6G

This book explores different facets of millimeter wave systems, which form a central part of 5G systems. It explains how these systems serve as a foundational building block of 5G-Advanced/6G as these systems evolve.

Millimeter Wave Communications in 5G and Towards 6G focuses on millimeter wave channel modeling, radio frequency (RF) and antenna level constraints imposed on beamforming, beamforming design for link level incorporating the RF/antenna constraints and the channel structure, as well as system level deployment considerations. With significant academic and industrial experience, the authors are well-equipped in explaining how the millimeter wave research developed, the fundamental principles/math beneath the technology, and in explaining precisely the “Why?” behind the “What?” that make the 5G-NR specifications. The authors examine point-to-point systems at a single link level and show how the traditional sub-6 GHz-based beamforming procedures simplify to a simplistic signal processing approach of directional beam scanning. This book examines the foundational background that led to specific choices in the millimeter wave part of the 5G-NR spec as well as chart out the roadmap in terms of future research and development activities in this arena. The book ends by providing a scope of future research in this area.

This book is geared towards both introductory as well as advanced researchers in both industry and academia working in the areas of 5G, 5G-Advanced and 6G communications. It would also be useful for senior undergraduate and graduate students in universities focusing on wireless communications topics.

Vasanthan Raghavan is a Principal Engineer at Qualcomm Technologies. He received the B.Tech degree in electrical engineering from the Indian Institute of Technology at Madras, Chennai, India, in 2001, and the M.S. and Ph.D. degrees in electrical and computer engineering, in 2004 and 2006, respectively, and the M.A. degree in mathematics, in 2005, all from the University of Wisconsin, Madison, WI, USA.

Junyi Li is a Vice President, Engineering at Qualcomm Technologies. He is an IEEE Fellow and a Qualcomm Fellow. He received the Ph.D. degree in electrical engineer- ing from Purdue University, West Lafayette, IN, USA, and the MBA degree from the Wharton School, University of Pennsylvania, Philadelphia, PA, USA.

Ashwin Sampath was a Senior Director, Technology at Qualcomm Technologies. He is currently with Blue River Technology, Inc. He received the Ph.D. degree in electrical engineering from Rutgers University, New Brunswick, NJ, USA.

Ozge H. Koymen is a Senior Director, Technology at Qualcomm Technologies. He received the B.S. degree in electrical and computer engineering from Carnegie Mel- lon University, Pittsburgh, PA, USA, in 1996, and the M.S. and Ph.D. degrees in electrical engineering from Stanford University, Stanford, CA, USA, in 1997 and 2003, respectively.

Tao Luo is a Vice President, Engineering at Qualcomm Technologies. He received the B.S.E.E. degree from Shanghai Jiao Tong University, Shanghai, China, the M.Sc. degree from Queen’s University, Kingston, Ontario, Canada, and the Ph.D. degree in electrical engineering and computer science from the University of Toronto, Toronto, Ontario, Canada.

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