Time Allocation for Integrated Bi-Static Radar and Communication Systems

Abstract

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Generalized Transceiver Beamforming for DFRC With MIMO Radar and MU-MIMO Communication

“…The performance of the MU-MIMO communication is determined by the constraint of the CU's SCNR. We define the optimized beampattern as P (θ) = |w * H A (θ) x| 2 , where w * is the receive beamforming vector of the MIMO radar for SCNR maximization in (9). The main beam is located at the target's spatial angle θ 0 = 0 • , and the nulls are placed at the clutters' spatial angles θ 1 = −30 • and θ 2 = 30 • .…”

“…The work of [8] exploited the constructive multi-user interference to achieve a better tradeoff between the performance of radar and communication. The time allocation was analyzed and optimized for an integrated bi-static radar and communications system in [9]. Compared to CRC, DFRC focuses on developing dual-functional systems that simultaneously perform radar and communication functions [10].…”

Radio Sensing Using 5G Signals: Concepts, State of the Art, and Challenges

“…This can be mitigated via beamforming [31] - [33] or null space projection [34]. If they integrate with each other, dual-functional [35] or duplexed waveforms [29], [30] are often used, which require changes to the 5G systems. For example, the same carrier could be modulated by both radar and communications signals, or waveform diversity could be used where the main lobe is used for radar and side-lobes are used for communications, or certain antennas in MIMO systems or certain subcarriers in OFDM systems are used for radar while others are used for communications.…”

QoS-Aware Precoder Optimization for Radar Sensing and Multiuser Communications Under Per-Antenna Power Constraints

“…CRC focuses on efficient management of the mutual interference between radar sensing and wireless communications [6], [7] and it dates back to 1960s [8]. To maximize the efficiency of coexistence, the CRC time allocation was studied in [9]. The work of [10] presented a spectral co-design for a statistical multipleinput multiple-output (MIMO) radar and full-duplex multiuser MIMO communications.…”