Table 1 Link budget calculation (most numbers are per BB channel)
From: Channel-bonding CMOS transceiver for 100 Gbps wireless point-to-point links
| Element | 64QAM | 16QAM | QPSK | BPSK |
|---|---|---|---|---|
| Emitter | ||||
| RF BW (GHz) | 32 | 32 | 32 | 32 |
| Number of bonded channels | 16 | 16 | 16 | 16 |
| Single channel BW (GHz) | 1.6 | 1.6 | 1.6 | 1.6 |
| Per PA OCP1B (dBm) | 10.5 | 10.5 | 10.5 | 10.5 |
| Per ch. OCP1 dB (dBm) | 4.5 | 4.5 | 4.5 | 4.5 |
| Back off (dB) | 7 | 5 | 3 | 3 |
| Average power @PA out (dBm) | 3.5 | 5.5 | 7.5 | 7.5 |
| Per channel Tx av. Pout (dBm) | -2.5 | -0.5 | 1.5 | 1.5 |
| Interconnection losses (dB) | 2 | 2 | 2 | 2 |
| Antenna gain (dBi) | 33 | 33 | 33 | 33 |
| EIRP (dBm) | 28.5 | 30.5 | 32.5 | 32.5 |
| Channel | ||||
| Range (m) | 25 | 50 | 120 | 150 |
| Attenuation coefficient | 2 | 2 | 2 | 2 |
| Carrier frequency (GHz) | 156 | 156 | 156 | 156 |
| O2 & rain attenuation (dB) | 0.80 | 1.60 | 3.84 | 4.80 |
| Path loss (dB) | -105.06 | -111.88 | -121.73 | 124.63 |
| Receiver | ||||
| Antenna gain (dBi) | 33 | 33 | 33 | 33 |
| Interconnection losses (dB) | 2 | 2 | 2 | 2 |
| Power per channel (dBm) | -44.6 | -49.5 | -57.3 | -60.2 |
| Power at LNA input (dBm) | -32.6 | -37.5 | -42.3 | -48.2 |
| NF (dB) | 12 | 12 | 12 | 12 |
| Implementation loss margin (dB) | 4.2 | 2.5 | 1.2 | 1.3 |
| SNR @ ADC in (dB) | 25.3 | 20.5 | 12.7 | 9.8 |
| SNR for PER 10-5 (dB) | 21 | 18 | 11.5 | 8.5 |
| Raw data-rate (Gbps) | 153.6 | 102.4 | 51.2 | 25.6 |