Automatic generation of customized discrete fourier transform IPs
Proceedings of the 42nd annual Design Automation Conference
Hybrid Wordlength Optimization Methods of Pipelined FFT Processors
IEEE Transactions on Computers
Generating FPGA-Accelerated DFT Libraries
FCCM '07 Proceedings of the 15th Annual IEEE Symposium on Field-Programmable Custom Computing Machines
A High-Speed Two-Parallel Radix-24 FFT/IFFT Processor for MB-OFDM UWB Systems
IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences
Low-complexity FFT/IFFT IP hardware macrocells for OFDM and MIMO-OFDM CMOS transceivers
Microprocessors & Microsystems
An Area Efficient FFT/IFFT Processor for MIMO-OFDM WLAN 802.11n
Journal of Signal Processing Systems
Rapid design of application specific FFT cores
IEEE Transactions on Signal Processing
A low clock frequency FFT core implementation for multiband full-rate ultra-wideband (UWB) receivers
IEEE Transactions on Consumer Electronics
An approach to simplify the design of IFFT/FFT cores for OFDM systems
IEEE Transactions on Consumer Electronics
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A systematic approach is presented for automatically generating variable-size FFT/IFFT soft intellectual property (IP) cores for MIMO-OFDM systems. The finite-precision effect in an FFT processor is first analyzed, and then an effective word-length searching algorithm is proposed and incorporated in the proposed IP generator. From the comparison, we show that our analysis of the finite precision effect in FFT is much more accurate than the previous work. With the flexible architecture and the effective word-length searching techniques, we can strike a good balance for the performance and the hardware cost of the generated IP cores. The generated FFT soft IP cores are portable and independent of the silicon technology, which helps to greatly reduce the design time. Experimental results demonstrate that the proposed IP generator indeed provides FFT IPs which meet the requirements and are more suitable in recent MIMO-OFDM communication standards/drafts than some conventional FFT IP generators.