Guest Editorial for the Special Issue on Software-Defined Radio Transceivers and Circuits for 5G Wireless Communications

The aim of this Special Issue is to publish, in a single source, technical papers reflecting the most recent research and application results in software-defined radio architectures, circuits, and systems for wireless and mobile communications and identify new challenges in software-defined radio research for 5G communications. The response to our call for papers was enthusiastic, with some 80 submissions received. After rigorous review, 23 papers were selected for publication in this Special Issue. These papers cover a very wide range of software-defined radio systems and techniques,