info:eu-repo/grantAgreement/FCT/Projectos de IC&DT em Linhas de Investigação de Excelência - 2012/EXCL%2FEEI-TEL%2F0067%2F2012/PTCREaTION - Cognitive Radio Transceiver Design for Energy Efficient Data Transmission [EXCL/EEI-TEL/0067/2012]CREaTION