An Overview of Signal Processing Techniques for Joint Communication and Radar Sensing

By J. Andrew Zhang, Fan Liu, Christos Masouros, Robert W. Heath, Zhiyong Feng, Le Zheng, Athina P. Petropulu. IEEE Journal on Selected Topics in Signal Processing, 2021

1,156 citations recorded by the source corpus.

Joint communication and radar sensing (JCR) represents an emerging research field aiming to integrate the above two functionalities into a single system, by sharing the majority of hardware, signal processing modules and, in a typical case, the transmitted signal. The close cooperation of the communication and sensing functions can enable significant improvement of spectrum efficiency, reduction of device size, cost and power consumption, and improvement of performance of both functions. Advanced signal processing techniques are critical for making the integration efficient, from transmission signal design to receiver processing. This paper provides a comprehensive overview of the state-of-the-art on JCR systems from the signal processing perspective. A balanced coverage on both transmitter and receiver is provided for three types of JCR systems, namely, communication-centric, radar-centric, and joint design and optimization.

Subfields: Aerospace Engineering

View Paper: https://www.semanticscholar.org/paper/6e445400471d1b336df53d327e5eb87db9521c37

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Citations in the corpus

Integrated Sensing and Communication Signals Toward 5G-A and 6G: A Survey (2023, background): “Due to the high spectrum efficiency and low hardware cost, academia and industry both pay extensive attention to ISAC technology [3], [4], [5], [6].”
Full-Duplex Communication for ISAC: Joint Beamforming and Power Optimization (2022, background): “It has been shown in the literature [4]–[6] that ISAC signiﬁcantly enhances the spectral efﬁciency and reduces implemental cost by sharing spectral resources and reusing expensive hardware architectures.”
A Tutorial on Fluid Antenna System for 6G Networks: Encompassing Communication Theory, Optimization Methods and Hardware Designs (2024, background): “Finally, ISAC makes up the last new usage scenario, aiming to facilitate applications and services requiring sensing capabilities such as movement tracking, environmental monitoring, and providing sensing data or information for AI, extended reality, and digital twin applications [15], [16].”
Throughput Maximization for UAV-Enabled Integrated Periodic Sensing and Communication (2022, background): “Thus, ISAC could not only achieve integration gain to significantly enhance the spectrum utilization efficiency and reduce hardware costs, but also introduce coordination gain to efficiently balance between two functionalities’ performance [4], [5].”
UAV-Enabled Integrated Sensing and Communication: Opportunities and Challenges (2022, methodology): “By leveraging advanced multiple-input and multiple-output (MIMO) and millimeterwave (mmWave)/terahertz (THz) technology, ISAC is expected to provide high-throughput, ultra-reliable, and low-latency wireless communications, as well as ultra-accurate and highresolution wireless sensing in 6G [1], [2].”
On the Fundamental Tradeoff of Integrated Sensing and Communications Under Gaussian Channels (2022, background): “Nonetheless, the distinct physical roles of X and H in S&C and the resulting performance measures lead to a number of unique performance tradeoffs and design criteria [7], [8], [9], [10] to the ISAC signal processing, particularly for simultaneously realizing S&C functionalities via a unified wavefo”
Integrated Sensing and Communications: Recent Advances and Ten Open Challenges (2023, background): “…ISAC fundamental limits, IoT applications or dual-functional wireless networks, this article adopts a broader perspective on recent advances as well as open questions in ISAC and serves as a complement of the existing efforts [22], [23], [24], [25], [26], [27], [28], [29], [30], [31], [32], [33].”
DeepSense 6G: A Large-Scale Real-World Multi-Modal Sensing and Communication Dataset (2022, background): “The synergy between communication, multi-modal sensing, and positioning is envisioned as a deﬁning characteristic of future wireless systems in 6G and beyond [1]–[8].”
5G-Advanced Toward 6G: Past, Present, and Future (2023, background): “With the emergence of integrated sensing and communication towards 6G (see Section XI-B for more detail), data communication and positioning integration may become tighter in 6G [91].”
Integrated Sensing and Communications: Toward Dual-Functional Wireless Networks for 6G and Beyond (2021, background): “Fully unified ISAC waveforms are generally designed following three philosophies, namely, sensing-centric design (SCD), communication-centric design (CCD), and joint design (JD) approaches [45], [49], which we elaborate on as follows.”
Evolution of NOMA Toward Next Generation Multiple Access (NGMA) for 6G (2021, background): “Current ISaC systems include three main types: Communication-centric designs (CCD), sensing-centric designs (RCD), and joint designs (JD) [126].”