'Software-Defined Radio' (SDR) is a new approach for mobile communication architectures. The general idea is to replace special analog hardware components by FPGAs, DSPs and 'general purpose processors' (GPPs), and therefore allow fast-prototyping on a flexible platform. SDR is the enabling technology for Green IT, supporting multiple radio standards in a flexible and energy efficient manner. SDR based systems are reconfigurable and reduce developing time and costs in comparison with special purpose processors.
