Multibeam Joint Communication and Radar Sensing: Beamforming Design and Interference Cancellation

被引：10

作者：

Zhuo, Yinxiao ^{[1
]}

Sha, Ziyuan ^{[1
]}

Wang, Zhaocheng ^{[1
,2
]}

机构：

[1] Tsinghua Univ, Beijing Natl Res Ctr Informat Sci & Technol, Dept Elect Engn, Beijing 100084, Peoples R China

[2] Tsinghua Shenzhen Int Grad Sch, Shenzhen 518055, Peoples R China

来源：

IEEE COMMUNICATIONS LETTERS | 2022年 / 26卷 / 08期

基金：

国家重点研发计划;

关键词：

Sensors; Radar; Radio frequency; Array signal processing; Radar detection; Precoding; Interference cancellation; Joint communication and radar; multi-beam JCR; millimeter-wave communication; beamforming design; WAVE-FORM;

D O I：

10.1109/LCOMM.2022.3179687

中图分类号：

TN [电子技术、通信技术];

学科分类号：

0809 ;

摘要：

Multi-beam joint communication and radar (JCR) activates communication beam and sensing beam simultaneously to satisfy both communication and sensing requirements, where the sensing beam is supposed to scan a wide sensing field of view for target detection. However, the sensing beam with time-varying directions may cause severe interference on communication, especially in non-line-of-sight (NLoS) scenario. To address this problem, we propose a multi-beam JCR interference reduction methodology. Firstly, the communication receiver (CRx) utilizes the radar spreading sequences to estimate and eliminate the interference. Then, the transmitter adjusts the beamforming design according to CRx estimation to obtain higher communication beamforming gain. Our proposed methodology could improve the signal-to-interference ratio (SIR) at CRx without the sacrifice of radar detection ability. Simulation results are provided to demonstrate the superiority of the proposed scheme compared to its existing multi-beam JCR counterpart.

引用

页码：1888 / 1892

页数：5

共 15 条

[1] Full-Duplex OFDM Radar With LTE and 5G NR Waveforms: Challenges, Solutions, and Measurements [J].