Table 4 Complexity performance of RNS-FFT and TCS-FFT for 2048-point FFT
From: A PAPR reduction scheme with residue number system for OFDM
| Â | RNS-FFT | TCS-FFT |
|---|---|---|
Combinational ALUT (used/total) | 9,925/182,400 (5%) | 13,294/182,400 (7%) |
Memory ALUT (used/total) | 162/91,200 ( 1%) | 0/91,200 (0%) |
Registers (used/total) | 3,101/182,400 (2%) | 1,361/182,400 ( 1%) |
Frequency of critical path (MHz) | 114.08 | 106.09 |