A Power-Scalable Reconfigurable FFT/IFFT IC Based on a Multi-Processor Ring
Guanwen Zhong, Fan Xu, Alan N. Willson · IEEE Journal of Solid-State Circuits · 2006
A single-chip reconfigurable FFT/IFFT processor that employs a ring-structured multiprocessor architecture is presented. Multi-level reconfigurability is realized by dynamically allocating computation resources needed by specific applications. The processor IC was fabricated in 0.25-/spl mu/m CMOS. It performs 8-point to 4096-point complex FFT/IFFT with power-consumption scalability and provides useful trade-offs between algorithm flexibility, implementation complexity and energy efficiency.