I. Introduction
Information and communication technologies are essentially facet of modern life. Today, there are billions of mobile phone subscribers and internet users. Mobile service providers and equipment vendors have to undertake abundant communication services that are demanded by this gigantic number of subscribers. Software defined radio (SDR) systems enable the convergence of different communication standards and switch between them through software programming without changing the hardware [1], [2]. The basic block diagram of SDR transmitter is depicted in Fig. 1. SDR transmitter comprises reconfigurable digital signal processing (DSP) unit followed by radio-frequency (RF) front end.
Basic block diagram of SDR transmitter.