Implementation of FPGA Signal Processing In Software Defined Radios

FPGA based signal processors are employed in a diverse range of signal processing applications for reasons of performance, economics, flexibility and power consumption. Software defined radios (SDR) are highly configurable hardware platforms that provide the technology for realizing the rapidly expanding futuregeneration digital wire less communication infrastructure. Many sophisticated signal processing tasks are performed in a SDR, including advanced compression algorithms, power control, channel estimation, equalization, forward error control, adaptive antennas, rake processing in a WCDMA system and protocol management. Field-programmable gate arrays (FPGA) outpace digital signal processors (DSPs), through hardware execution of a wide range of parallelizable algorithms. FPGAs are especially suited for embedded systems because, beside an area of reconfigurable logical elements, they can also incorporate large amounts of memory, high-speed DSP blocks, clock management circuitry, high-speed input/output (I/O), as well as support for external memory and high speed networking and communications bus standards. Power consumed in embedded systems is very less