Joint wireless communication and radar sensing systems – state of the art and future prospects

Han, Liang; Wu, Ke

doi:10.1049/iet-map.2012.0450

Cited by 151 publications

(71 citation statements)

References 45 publications

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“…In the past half-decade, a number of joint communication-radar systems have been proposed (see, e.g., [7] and the references therein). These approaches can be mainly classified as either a simultaneous system or a non-simultaneous system.…”

Section: Introductionmentioning

confidence: 99%

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IEEE 802.11ad-Based Radar: An Approach to Joint Vehicular Communication-Radar System

Kumari

Choi

González–Prelcic

et al. 2018

IEEE Trans. Veh. Technol.

530

418

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Millimeter-wave (mmWave) radar is widely used in vehicles for applications such as adaptive cruise control and collision avoidance. In this paper, we propose an IEEE 802.11ad-based radar for long-range radar (LRR) applications at the 60 GHz unlicensed band. We exploit the preamble of a single-carrier (SC) physical layer (PHY) frame, which consists of Golay complementary sequences with good correlation properties, as a radar waveform. This system enables a joint waveform for automotive radar and a potential mmWave vehicular communication system based on IEEE 802.11ad, allowing hardware reuse.To formulate an integrated framework of vehicle-to-vehicle (V2V) communication and LRR based on a mmWave consumer wireless local area network (WLAN) standard, we make typical assumptions for LRR applications and incorporate the full duplex radar assumption due to the possibility of sufficient isolation and self-interference cancellation. We develop single-and multi-frame radar receiver algorithms for target detection as well as range and velocity estimation within a coherent processing interval. Our proposed radar processing algorithms leverage channel estimation and time-frequency synchronization techniques used in a conventional IEEE 802.11ad receiver with minimal modifications. Analysis and simulations show that in a single target scenario, a Gbps data rate is achieved simultaneously with cm-level range accuracy and cm/s-level velocity accuracy. The target vehicle is detected with a high probability of detection (>99.9%) at a low false alarm of 10 −6 for an equivalent isotropically radiated power (EIRP) of 43 dBm up to a vehicle separation distance of 200 m.

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Section: Introductionmentioning

confidence: 99%

“…In a non-simultaneous system, radar and communication operate in different time intervals [12], [13]. Most of the prior work [7]- [10], [12], [13] used waveforms that are not based on a communication standard.…”

Section: Introductionmentioning

confidence: 99%

IEEE 802.11ad-Based Radar: An Approach to Joint Vehicular Communication-Radar System

Kumari

Choi

González–Prelcic

et al. 2018

IEEE Trans. Veh. Technol.

530

418

View full text Add to dashboard Cite

show abstract

“…More complex solutions consist of embedding the data to be transmitted into the radar waveform [6]. These can be categorized in Time Division Duplex (TDD) mode techniques [7], which generally use Frequency Modulated Continuous Wave (FMCW) radar waveforms, and Frequency Division Duplex (FDD) mode techniques.…”

Section: Introductionmentioning

confidence: 99%

Fractional fourier based waveform for a joint radar-communication system

Gaglione

Clemente

Ilioudis

et al. 2016

2016 IEEE Radar Conference (RadarConf)

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Abstract-The increasing demand of spectrum resources and the need to keep the size, weight and power consumption of modern radar as low as possible, has led to the development of solutions like joint radar-communication systems. In this paper a novel Fractional Fourier Transform (FrFT) based multiplexing scheme is presented as joint radar-communication technique. The FrFT is used to embed data into chirp sub-carriers with different time-frequency rates. Some optimisation procedures are also proposed, with the objective of improving the bandwidth occupancy and the bit rate and/or Bit Error Ratio (BER). The generated waveform is demonstrated to have a good rejection to distortions introduced by the channel, leading to low BER, while keeping good radar characteristics compared to a widely used Linear Frequency Modulated (LFM) pulse with same duration and bandwidth.

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“…schemes is also continuously increasing in commercial, industrial and military fields [1], [2]. Good examples, where both radio communications and sensing are of high importance, are autonomous cars, or the automotive sector overall, flight control systems, as well as medical sensors and monitoring [3]- [5], to name but a few.…”

mentioning

confidence: 99%

“…While classically radio communications and radio-based sensing systems are designed, developed and deployed completely independently of each other, the congestion of the available radio spectrum has started to raise interest in merging these functionalities and systems to shared frequency bands and potentially even to same hardware platforms. This is commonly referred to as RF convergence in the literature, with comprehensive state-of-the-art surveys being available in [1], [2].…”

mentioning

confidence: 99%

Full-Duplex OFDM Radar With LTE and 5G NR Waveforms: Challenges, Solutions, and Measurements

Barneto

Riihonen

Turunen

et al. 2019

IEEE Trans. Microwave Theory Techn.

208

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This paper studies the processing principles, implementation challenges, and performance of OFDM-based radars, with particular focus on the fourth-generation Long-Term Evolution (LTE) and fifth-generation (5G) New Radio (NR) mobile networks' base stations and their utilization for radar/sensing purposes. First, we address the problem stemming from the unused subcarriers within the LTE and NR transmit signal passbands, and their impact on frequency-domain radar processing. Particularly, we formulate and adopt a computationally efficient interpolation approach to mitigate the effects of such empty subcarriers in the radar processing. We evaluate the target detection and the corresponding range and velocity estimation performance through computer simulations, and show that highquality target detection as well as high-precision range and velocity estimation can be achieved. Especially 5G NR waveforms, through their impressive channel bandwidths and configurable subcarrier spacing, are shown to provide very good radar/sensing performance. Then, a fundamental implementation challenge of transmitter-receiver (TX-RX) isolation in OFDM radars is addressed, with specific emphasis on shared-antenna cases, where the TX-RX isolation challenges are the largest. It is confirmed that from the OFDM radar processing perspective, limited TX-RX isolation is primarily a concern in detection of static targets while moving targets are inherently more robust to transmitter self-interference. Properly tailored analog/RF and digital selfinterference cancellation solutions for OFDM radars are also described and implemented, and shown through RF measurements to be key technical ingredients for practical deployments, particularly from static and slowly moving targets' point of view.

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Joint wireless communication and radar sensing systems – state of the art and future prospects

Cited by 151 publications

References 45 publications

IEEE 802.11ad-Based Radar: An Approach to Joint Vehicular Communication-Radar System

IEEE 802.11ad-Based Radar: An Approach to Joint Vehicular Communication-Radar System

Fractional fourier based waveform for a joint radar-communication system

Full-Duplex OFDM Radar With LTE and 5G NR Waveforms: Challenges, Solutions, and Measurements

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