Efficient high speed lattice-CORDIC IFFT architecture for DMT transmitter
The Discrete MultiTone (DMT) modulation/demodulation technique plays an important role in data transmission. The main bottleneck of the DMT scheme is its high computational complexity due to the large block size of the IFFT/FFT. In this paper an efficient fast IFFT architecture is proposed to accelerate the operation of the DMT technique. The proposed architecture achieves approximately 58%, 39%, and 50% reductions in gate count, power consumption, and area compared to the conventional state of the art pipelined IFFT generators. Implementation and Simulation results project that the proposed IFFT architecture can perform data transmission at 118 MHz.