Abstrakti
This article studies advanced digital self-interference (SI) cancellation algorithms for wireless full-duplex (FD) transceivers. While the majority of works in this area consider linear SI models and corresponding cancellation algorithms, we take also both the transmitter (TX) and receiver (RX) nonlinearities into account. Specifically, we develop a Hammerstein-Wiener type of digital SI cancellation system where the two involved nonlinearities are efficiently implemented through spline-interpolated look-up tables (LUTs). Also, adaptive parameter estimation solutions are pursued and discussed, and comprehensive cancellation performance examples and processing complexity comparisons are provided. The obtained results show that taking both the TX and RX nonlinearities into account in the digital cancellation stage can be beneficial, particularly when the TX power amplifier is operating close to saturation and when the RF isolation and RF cancellation prior to the RX low-noise amplifier (LNA) is limited, such that also the LNA is distorting the SI waveform.
| Alkuperäiskieli | Englanti |
|---|---|
| Otsikko | Conference Record of the 54th Asilomar Conference on Signals, Systems and Computers, ACSSC 2020 |
| Toimittajat | Michael B. Matthews |
| Kustantaja | IEEE |
| Sivut | 1265-1271 |
| Sivumäärä | 7 |
| ISBN (elektroninen) | 9780738131269 |
| ISBN (painettu) | 9781665447072 |
| DOI - pysyväislinkit | |
| Tila | Julkaistu - 2020 |
| OKM-julkaisutyyppi | A4 Artikkeli konferenssijulkaisussa |
| Tapahtuma | Asilomar Conference on Signals, Systems and Computers - Pacific Grove, Yhdysvallat Kesto: 1 marrask. 2020 → 5 marrask. 2020 |
Julkaisusarja
| Nimi | Asilomar Conference on Signals, Systems, and Computers proceedings |
|---|---|
| ISSN (painettu) | 1058-6393 |
| ISSN (elektroninen) | 2576-2303 |
Conference
| Conference | Asilomar Conference on Signals, Systems and Computers |
|---|---|
| Maa/Alue | Yhdysvallat |
| Kaupunki | Pacific Grove |
| Ajanjakso | 1/11/20 → 5/11/20 |
Rahoitus
This work was financially supported by the Academy of Finland under the projects 301820, 323461 and 319994.
Julkaisufoorumi-taso
- Jufo-taso 1
!!ASJC Scopus subject areas
- Signal Processing
- Computer Networks and Communications
Sormenjälki
Sukella tutkimusaiheisiin 'Adaptive Cancellation of Nonlinear Self-Interference in Wireless Full-Duplex: Cascaded Spline-Interpolated Methods'. Ne muodostavat yhdessä ainutlaatuisen sormenjäljen.Siteeraa tätä
- APA
- Author
- BIBTEX
- Harvard
- Standard
- RIS
- Vancouver