Dedication. Preface. Acknowldgements. 1. 4G wireless terminals. 1.1 A Wireless-Centric World. 1.2 The Driving Forces Towards 4G Systems. 1.3 Basic Architecture For a 4G Terminal. 1.4 The Role of Analog Circuits. 1.5 Energy-Scalable Radio Front End. 1.6 Towards Cognitive Radios. 2. Software Defined Radio-Front End. 2.1 The Software Radio Architecture. 2.2 Candidate Architectures for SDR Front Ends. 2.3 SDR Front End Implementation. 2.4 Digital Calibration...