Design and implementation of backscatter links with software defined radio for wireless sensor network applicationshttp://www.library.tuc.gr/artemis/DT2012-0211/DT2012-0211.pdfhttp://purl.tuc.gr/dl/dias/983DB788-1782-430E-9DD8-D0613AF5A5F3Design and implementation of backscatter links with software defined radio for wireless sensor network applicationsfree2014-03-24application/pdf