FMCW Implementation of Phase-Attached Radar-Communications (PARC)

McCormick, Patrick M.; Şahin, Cenk; Blunt, Shannon D.; Metcalf, Justin G.

doi:10.1109/radar.2019.8835668

Cited by 30 publications

(30 citation statements)

References 21 publications

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“…A modification of FMCW which has been considered for ISAC is phase coded frequency-modulated continuous-wave (PC-FMCW) which combines phase coding with traditional linear frequency modulated waveform [7]. Another alternative for communications-enabled FMCW is continuous phase modulated-linear frequency modulated (CPM-LFM) waveform, in which continuous phase modulation is combined with FMCW [8]. Both PC-FMCW and CPM-LFM are capable of communications with low to medium data rate, e.g.…”

Section: Full Integrationmentioning

confidence: 99%

Towards Integrated Sensing and Communications for 6G

Wang¹,

Kakkavas²,

Gong³

et al. 2022

Preprint

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For the next generation of mobile communications systems, the integration of sensing and communications promises benefits in terms of spectrum utilization, cost, latency, area and weight. In this paper, we categorize and summarize the key features and technical considerations for different integration approaches and discuss related waveform design issues for a future sixth generation (6G) system. We provide results on new candidate waveforms for monostatic sensing and finally highlight important open issues and directions that deserve future in-depth research.

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Section: Full Integrationmentioning

confidence: 99%

Towards Integrated Sensing and Communications for 6G

Wang¹,

Kakkavas²,

Gong³

et al. 2022

Preprint

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“…In [19], an 𝑀-ary frequency shift keying (MFSK) modulated chirp based radar and communication system is proposed, in which an FFT-based procedure is used to perform target detection. In [20], a phase-attached radar-communications (PARC) framework is extended to a frequency modulated continuous-wave (FMCW) implementation as a means to realise both functions. Stretch processing is employed such that large bandwidth radar operation and fine range resolution can be achieved.…”

Section: A Related Workmentioning

confidence: 99%

Combined Radar and Communications with Phase-Modulated Frequency Permutations

Han¹,

Senanayake²,

Smith³

et al. 2021

Preprint

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This paper focuses on the combined radar and communications problem and conducts a thorough analytical investigation on the effect of phase and frequency change on the communication and sensing functionality. First, we consider the classical stepped frequency radar waveform and modulate data using 𝑀-ary phase shift keying (MPSK). Two important analytical tools in radar waveform design, namely the ambiguity function (AF) and the Fisher information matrix (FIM) are derived, based on which, we make the important conclusion that MPSK modulation has negligible effect on radar local accuracy. Next, we extend the analysis to incorporate frequency permutations and propose a new signalling scheme in which the mapping between incoming data and waveforms is performed based on an efficient combinatorial transform called the Lehmer code. We also provide an efficient communications receiver based on the Hungarian algorithm. From the communications perspective, we consider the optimal maximum likelihood (ML) detector and derive the union bound and nearest neighbour approximation on the block error probability. From the radar sensing perspective, we discuss the broader structure of the waveform based on the AF derivation and quantify the radar local accuracy based on the FIM.

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“…(3) It should be noted that the effect of a low-pass filter is to limit the frequency span of the frequency sweep at baseband that can be sampled by the receiver. The duration of the baseband sweep after sampling by the receiver is equal to the maximum delay term τ max in (2). The model of the received signal in (3) indicates that the task at hand consists of detection of the presence of a communication signal with the delay parameter τ .…”

Section: Fmcw Radcom Signal Detectionmentioning

confidence: 99%

“…Both the operation of multiple radars and V2V communication involving multitudes of vehicles put a strain on the available spectrum resources. Combining radar and communication functions by modulating the radar signal with communication payload is considered in previous publications, where frequency modulated continuous wave (FMCW) radar signals are phase modulated for joint radar communication (RadCom) applications [1], [2]. While previous research focuses on the investigation of phase-coded FMCW (PC-FMCW) radar performance [2], [3], communication performance of the phase-modulated FMCW signal has received much less attention.…”

Section: Introductionmentioning

confidence: 99%

System Level Synchronization of Phase-Coded FMCW Automotive Radars for RadCom

Lampel

Uysal

Tigrek

et al. 2020

2020 14th European Conference on Antennas and Propagation (EuCAP)

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FMCW Implementation of Phase-Attached Radar-Communications (PARC)

Cited by 30 publications

References 21 publications

Towards Integrated Sensing and Communications for 6G

Towards Integrated Sensing and Communications for 6G

Combined Radar and Communications with Phase-Modulated Frequency Permutations

System Level Synchronization of Phase-Coded FMCW Automotive Radars for RadCom

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