Reconfigurable DSP Architectures for SDR Applications

Addition of new bands, modes and services in mobile devices means the use of software defined radio (SDR) in the upcoming wireless devices is inevitable. To realize SDR, a common flexible hardware platform is required that supports transmission and reception of the existing radio access technologies. Air-interface and analog/digital conversions make a key part of SDR hardware both on transmitter and receiver. Front end processing block (FEP) of SDR consists of processing blocks required at the air-interface including Time/Frequency conversions, Dot-Products, Energy and Max calculations. We propose a flexible yet efficient hardware design for FEP that will furnish the front-end-functionality requirements of 2G, 3G, 4G, broadcast communication and wireless-LAN standards.