移动通信2024，Vol.48Issue(11)：92-97,6.DOI:10.3969/j.issn.1006-1010.20240925-0005
面向大容量海洋移动通信的阵列级全双工自干扰抑制
Array-Level Full Duplex Self-Interference Suppression for High-Capacity Maritime Mobile Communication
摘要
Abstract
To increase the capacity of maritime mobile communication,extend communication coverage,and reduce transmission latency,an array-level full duplex architecture with dual-beam transmission is proposed.To address the significant self-interference from the transmit array to the receive array,a joint spatial-domain and digital-domain self-interference suppression algorithm is developed.In the spatial domain,an alternating iterative algorithm optimizes the transmit and receive beamforming weights.In the digital domain,reconstruction coefficients of a linear filter are calculated based on the least-squares criterion to reconstruct and cancel the self-interference signal,ultimately suppressing residual self-interference to the receiver noise floor.The theoretical analysis examines the maximum achievable effective isotropic isolation of the self-interference suppression algorithm.Both theoretical and simulation results demonstrate that the proposed self-interference suppression algorithm improves the isolation between transmit and receive arrays by 86.4 dB compared to conventional beamforming-based self-interference suppression techniques.关键词
阵列级全双工/双波束发射/自干扰抑制Key words
array-level full-duplex/dual-beam transmission/self-interference suppression分类
信息技术与安全科学引用本文复制引用
林钊希,赵宏志..面向大容量海洋移动通信的阵列级全双工自干扰抑制[J].移动通信,2024,48(11):92-97,6.基金项目
国家自然科学基金资助项目"大功率高速跳频信号非线性数字预校正理论","大功率高速跳频信号非线性数字预校正理论"(62071094,62471111) （62071094,62471111）
