Integrated Sensing and Communication (ISAC) has attracted substantial attraction in recent years for spectral efficiency improvement, enabling hardware and spectrum sharing for simultaneous sensing and signaling operations. In-band Full Duplex (FD) is being considered as a key enabling technology for ISAC applications due to its simultaneous transmission and reception capability. In this paper, we present an FD-based ISAC system operating at millimeter Wave (mmWave) frequencies, where a massive Multiple-Input Multiple-Output (MIMO) Base Station (BS) node employing hybrid Analog and Digital (A/D) beamforming is communicating with a DownLink (DL) multi-antenna user and the same waveform is utilized at the BS receiver for sensing the radar targets in its coverage environment. We develop a sensing algorithm that is capable of estimating Direction of Arrival (DoA), range, and relative velocity of the radar targets. A joint optimization framework for designing the A/D transmit and receive beamformers as well as the Self-Interference (SI) cancellation is presented with the objective to maximize the achievable DL rate and the accuracy of the radar target sensing performance. Our simulation results, considering fifth Generation (5G) Orthogonal Frequency Division Multiplexing (OFDM) waveforms, verify our approach's high precision in estimating DoA, range, and velocity of multiple radar targets, while maximizing the DL communication rate.
翻译:近年来,综合遥感和通信(ISAC)在光谱效率的提高方面吸引了巨大的吸引力,使硬件和频谱共享成为同步感应和信号操作的辅助功能;由于同时传输和接收能力,在波段内全双面(FD)正被视为ISAC应用的关键赋能技术;在本文中,我们介绍了在毫米波(mmWave)频率上运行的基于FD的ISAC系统,在毫米波(mmWave)频率上运行的基于FD的ISAC系统,在那里,利用混合分析和数字(A/D)波束的大型多投入多输出(MIMO)基地节点与DownLink(DL)多安宁纳(DL)用户进行通信联系,而同一波表在BS接收器接收环境中的雷达目标感测;我们开发了一种感测算算法,能够估计雷达目标的抵达方向、射程和相对速度;设计A/DM传输和接收信号的联合优化框架,以及自我干涉(SI)与DLink(DL)多安纳(ODMA)目标的可实现的可达率率率和高分辨率的精确度的频率分析方法。