Green Software De?ned Radios, the title of this book may have originated
from a lackofinspiration, andthecombinationofhardwork, jetlag,
anddrinkinggreentea. The message we want to convey however, is that SDRs
are a promising technology for the future, providing they are designed
for ef?cient usage of scarce resources: energy and spectrum. In the last
years, the R&D teams focusing on wireless c- munication (around the
world and at IMEC speci?cally), have realized great bre- throughs. It is
our honor, building on this knowledge, to bring a comprehensive overview
of the essential technologies. We are grateful that Springer is willing
to publish in their collection on radio technologies, a book on green
SDRs, a weird species still today, yet maybe the baseline for the day
after tomorrow. Dear reader, we wish that you ?nd in the following
pages, including the references, some int- esting insights, and that
this book may live more or less up to your expectations (and hopefully
more than less).
Thisbook'sclosingstatesthatthequestforGreenSDRshasnotended, thisisjust
the beginning. Concerning this book however, we are happy that today the
opposite is true. We want to acknowledge our colleagues at IMEC for
their great scienti?c contribution, and even more for the enjoyable
cooperation.