Table 2 Power consumptions (mW) and latencies of RX processing blocks
From: Energy efficiency analysis of hybrid-ARQ relay-assisted schemes in LTE-based systems
Block | N | Power P FFT (mW) | Latency T FFT |
|---|---|---|---|
FFT | 256 | 64.98 | 608 ×CLKperiod |
512 | 80.31 | 1130 ×CLKperiod | |
1024 | 86.9 | 2160 ×CLKperiod | |
2048 | 103.13 | 4218 ×CLKperiod | |
Block | Modulation | Power P DEMOD (mW) | Latency T DEMOD |
Demodulator | 4QAM | 1.9 | 1×CLKperiod |
16QAM | 2.88 | 1×CLKperiod | |
64QAM | 3.58 | 2×CLKperiod | |
Block | Size (bits) | PU | Power P DEC (mW) | Latency T DEC |
Turbo decoder | 40 | 1 | 98.16 | 2034 ×CLKperiod |
1024 | 2 | 149.5 | 4167 ×CLKperiod | |
2048 | 4 | 214.42 | 4643 ×CLKperiod | |
4096 | 8 | 373.52 | 7015 ×CLKperiod | |
6144 | 8 | 389.69 | 10154 ×CLKperiod |