1 Introduction
2 Research method
3 System model and transceiver architecture
4 Self-interference channel model
5 SI cancelation
5.1 Control of the RF canceler
5.2 Digital baseband cancelation with PA non-linearity compensation
5.3 Baseband cancelation with the compensation of power amplifier non-linearity and receiver IQ imbalance
6 Effect of SI cancelation performance on the FD link sum rate
7 Numerical results
7.1 Transceiver and signal model
Freq. offset | Phase noise |
---|---|
1 kHz | − 87 dBc |
10 kHz | − 103 dBc |
100 kHz | − 99 dBc |
1 MHz | − 112 dBc |
10 MHz | − 125 dBc |
7.2 SI cancelation at RF
SIC1 | SIC2 | SIC3 | SIC4 | SIC5 | SIC6 | SIC7 | SIC8 | |
---|---|---|---|---|---|---|---|---|
Antenna only | 48.6 | 44.5 | 40.1 | 39.1 | 40.9 | 39.4 | 40.6 | 40.3 |
RF canceler | 34.2 | 31.0 | 31.0 | 32.1 | 28.6 | 34.2 | 25.4 | 22.3 |
Total | 82.8 | 75.5 | 71.1 | 71.2 | 69.5 | 73.6 | 66.0 | 62.6 |
SIC1a | SIC2a | SIC3a | SIC4a | SIC5a | SIC6a | SIC7a | SIC8a | |
---|---|---|---|---|---|---|---|---|
Antenna only | 41.4 | 41.9 | 38.6 | 37.7 | 39.2 | 38.0 | 38.9 | 38.7 |
RF canceler | 30.0 | 31.0 | 39.5 | 39.3 | 39.4 | 32.2 | 33.4 | 27.8 |
Total | 71.4 | 72.9 | 78.1 | 77.0 | 78.6 | 70.2 | 72.3 | 66.5 |