Radio communications: components, systems, and networks

Summary form only given. In this issue of the series, our focus is back on the basic techniques and building blocks of communication systems such as transceivers and modulation. In addition, we provide a look into new standardization activity in the area of cognitive radios. The first article in the issue, "Single RF Front-End MIMO Transceivers", the second article, "Impact Superposition Modulation: Myths and Facts" and the third article, "IEEE 1900.6: Spectrum Sensing Interfaces and Data Structures for Dynamic Spectrum Access and Other Advanced Radio Communication Systems Standards: Technical Aspects and Future Outlook".