r the authors or the editors give a warranty, expressed or implied, with respect to the material contained herein or for any errors or omissions that may have been made. The publisher remains neutral with regard to jurisdictional claims in published maps and institutional affiliations. This Springer imprint is published by the registered company Springer Nature Switzerland AG The registered company address is: Gewerbestrasse 11, 6330 Cham, Switzerland This one is for Zabeer Ahmed and Zawad Ahmed, My love, my heart, my light Preface Introduction The beyond 5G (B5G) technology is the successor of 5G with new user requirements that provide up to Tbit/s peak data rate, expected bandwidth efficiency of two to three times compared with 5G, user experienced data rate of 10-100 Gb/s, latency of less than 0.1 ms, and mobility support of higher than 1000 km/h [1]. It facilitates completely new applications/use cases such as haptics, telemedicine, brain-machine interfaces, mixed reality, virtual reality, and augmented reality. Such requirements are deemed beyond 5G capabilities as they do not belong to any of the three main use cases which are mMTC, URLLC, and eMBB [2]. B5G is expected to be on the verge of the all-pervasive wireless Internet of Everything, capable of supporting mobile traffic in diversified scenarios with mixed key performance indicators. There are many challenges that must be resolved to achieve the targeted speed, power effi- ciency, spectrum efficiency, reliability, and latency requirements of B5G. The aim of this book is to gather the latest research findings on emerging trends in wireless systems. It will present and assess different enabling technologies, capabilities, and anticipated communications and computing solutions for 5G and beyond 5G. Topics discussed include new frequency bands, new network deployment, "Deep Physical Layer" (DPL) located below the physical layer of the OSI model, multiuser massive MIMO, relay-based cooperative communication, NOMA for massive IoT (mIoT), vehicular communica