Delay-Doppler Communications: Principles and Applications.

This book for the first time overviews the field of delay-Doppler communications with the systematic and expansive descriptions that an authored book can provide. The book consists of nine chapters, which can be roughly grouped into background, fundamental modulation and detection of orthogonal time frequency space (OTFS) modulation, and advanced aspects. The book is written in a very clear style, and allows somebody not familiar with OTFS to quickly understand the essentials of this exciting new topic. Even active researchers in the field will appreciate the clear and consistent description and the extensive intuitive explanations of the finer points of OTFS. The authors have done an excellent job in focusing on the key formulations and their interpretations, and making the book concise (some 250 pages), while also providing extensive references that enable looking up specialized developments. This valuable book will certainly benefit anyone working in the vibrant area of waveform design for 6G mobile communication.