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A resource-efficient FFT/IFFT architecture for PRIME PLC systems

This paper presents a resource-efficient real-valued fast Fourier transform (RFFT) and Hermitian symmetric inverse fast Fourier transform (HSIFFT) architecture for narrowband power line communication (N-PLC) systems. The proposed architecture has high flexibility and low complexity in control, and can be easily extended to different radices and points. Based on the structure, a novel FFT/IFFT processor is designed for PRIME (PoweRline Intelligent Metering Evolution) N-PLC systems.