Table 3 Dynamic power scaling factor for different FPGA families and IPs
From: Energy efficiency analysis of hybrid-ARQ relay-assisted schemes in LTE-based systems
Scaling factors | Power estimations (mW) | ||||||
|---|---|---|---|---|---|---|---|
IP name | Virtex-4 (ref) | Virtex-5 | Virtex-6 | Virtex-4 | Virtex-5 | Virtex-6 | |
FIR Filter | 2 taps | 1 | 0.479 | 0.225 | 54.67 | 26.19 | 12.285 |
32 taps | 1 | 0.399 | 0.1015 | 1087 | 433.79 | 110.41 | |
62 taps | 1 | 0.391 | 0.104 | 1611 | 630.72 | 167.58 | |
112 taps | 1 | 0.414 | 0.1261 | 1850 | 767.14 | 233.42 | |
QAM Modulator | QPSK | 1 | 0.415 | 0.263 | 8.33 | 3.47 | 2.19 |
16QAM | 1 | 0.306 | 0.304 | 8.02 | 2.46 | 2.44 | |
64QAM | 1 | 0.317 | 0.23 | 12.44 | 3.94 | 2.88 | |
QAM Demodulator | QPSK | 1 | 0.368 | 0.266 | 7.15 | 2.63 | 1.9 |
16QAM | 1 | 0.259 | 0.212 | 13.56 | 3.51 | 2.88 | |
64QAM | 1 | 0.395 | 0.21 | 17.09 | 6.75 | 3.58 | |
IFFT | 128pts | 1 | 0.465 | 0.332 | 697 | 324 | 231 |
256pts | 1 | 0.438 | 0.303 | 846.7 | 370.6 | 256.52 | |
512pts | 1 | 0.393 | 0.277 | 1159 | 456 | 321 | |
1024pts | 1 | 0.363 | 0.258 | 1407 | 511 | 364 | |
2048pts1 | 1 | 0.478 | 0.293 | 1143 | 546.5 | 335.6 |