Systematic Self-Interference Mitigation In Full Duplex Antenna Arrays Via Transmit Beamforming

被引：0

作者：

Ayebe, Mustafa ^{[1
]}

Malmstrom, Johan ^{[2
]}

Gunnarson, Sten E. ^{[2
]}

Holter, Henrik ^{[3
]}

Ivashina, Marianna ^{[1
]}

Bencivenni, Carlo ^{[4
]}

Maaskant, Rob ^{[1
]}

机构：

[1] Chalmers Univ Technol, Elect Engn Dept E2, Gothenburg, Sweden

[2] SAAB, Surveillance, Jarfalla, Sweden

[3] Ericsson AB, Hardware Res, Stockholm, Sweden

[4] Gapwaves AB, Dept Elect Engn, Gothenburg, Sweden

来源：

2023 INTERNATIONAL CONFERENCE ON ELECTROMAGNETICS IN ADVANCED APPLICATIONS, ICEAA | 2023年

关键词：

In-band full-duplex; Self-Interference Mitigation; Transmit Beamforming; WIRELESS;

D O I：

10.1109/ICEAA57318.2023.10297706

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The optimal antenna array excitation vector is derived that maximizes the (realized) array gain in a particular direction while preventing the coupled input power to the lownoise amplifiers on the receive side to exceed a certain maximum threshold level. This is very useful for in-band full-duplex systems where the hardware complexity for self-interference cancellation must be minimized. In this approach, the perfect nulling of interference on the RX side is not required, sparing degrees of freedom for the TX beamformer. We evaluate the performance of the proposed TX beamforming algorithm by showing numerical results of the 25 x-polarized TX and 25 RX with 0.5. element spacing and. gap distance between the TX and RX sub-array.

引用

页码：158 / 163

页数：6

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