电子学报2017，Vol.45Issue(1)：8-15,8.DOI:10.3969/j.issn.0372-2112.2017.01.002
一种基于多天线波束成形的全双工自干扰抵消算法
A Novel Self-Interference Cancellation Algorithm Using Multi-Antenna Beamforming in Full-Duplex System
摘要
Abstract
The existing studies focus mainly on the zero forcing of self-interference without the suppression for the RF transmitter noise in the full-duplex base station with multiple transmit and receive antennas.Considering the suppression for the RF transmitter noise,this paper proposes a joint transmit and receive beamforming algorithm.First,we derive the analytical expression of the receiver beamforming vector based on the maximum signal-to-interference-noise ratio(SINR) criterion.The algorithm for designing the transmit beamforming vector is then given by minimizing self-interference.The simulation results show that when the signal-to-noise ratio (SNR) are 30dB and 60dB respectively,the values of the self-interference cancellation are 65.5dB and 89.8dB for the base station with three transmit and three receive antennas.Meanwhile,the corresponding improvement are 25.5dB and 19.8dB respectively compared to the SVD zero forcing scheme.关键词
无线通信/自干扰抵消/多天线/同时同频全双工/波束成形/信干噪比/发射机噪声Key words
wireless communication/self-interference cancellation/multi-antenna/co-time co-frequency full duplex (CCFD)/beamforming/signal-to-interference-noise ratio (SINR)/transmitter noise分类
信息技术与安全科学引用本文复制引用
吴飞,邵士海,唐友喜..一种基于多天线波束成形的全双工自干扰抵消算法[J].电子学报,2017,45(1):8-15,8.基金项目
国家自然科学基金(No.61501093,No.61531009,No.61271164,No.61471108,No.61201266) （No.61501093,No.61531009,No.61271164,No.61471108,No.61201266）
国家科技重大专项(No.2014ZX03003001-002) （No.2014ZX03003001-002）
国家863高技术研究发展计划(No.2014AA01A704,No.2014AA01A706,No.2015AA01A701) （No.2014AA01A704,No.2014AA01A706,No.2015AA01A701）
教育部与中移动研究基金(No.MCM20130111) （No.MCM20130111）
