Computationally efficient beampattern synthesis for dual-function radar-communications

Hassanien, Aboulnasr; Amin, Moeness G.; Zhang, Yimin D.

doi:10.1117/12.2227333

Cited by 6 publications

(8 citation statements)

References 30 publications

(23 reference statements)

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“…Another way to design the cooperation methods is to use modulation techniques. Some researchers proposed to use sidelobe amplitude shift keying (ASK) for the JRC systems, however these methods are not investigated so far under fading channels [123], [124]. Obviously, the fading environment actually exists in wireless channels due to multipath propagation.…”

Section: Cooperationmentioning

confidence: 99%

Joint radar and communication: A survey

et al. 2020

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Joint radar and communication (JRC) technology has become important for civil and military applications for decades. This paper introduces the concepts, characteristics and advantages of JRC technology, presenting the typical applications that have benefited from JRC technology currently and in the future. This paper explores the state-of-the-art of JRC in the levels of coexistence, cooperation, co-design and collaboration. Compared to previous surveys, this paper reviews the entire trends that drive the development of radar sensing and wireless communication using JRC. Specifically, we explore an open research issue on radar and communication operating with mutual benefits based on collaboration, which represents the fourth stage of JRC evolution. This paper provides useful perspectives for future researches of JRC technology.

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Section: Cooperationmentioning

confidence: 99%

Joint radar and communication: A survey

et al. 2020

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“…In real practical scenario, training sequences can be utilized to update the channel estimate periodically and adjust phase synchronization between the transmitting array and the communication receiver. The embedded phase symbols can be estimated asψ n,q (τ ) = angle (y n,q (τ )) − angle (β CH ) + 2πd n sin θ com (20) where angle(·) represents the angle of a complex number, and β CH denotes the phase of the channel coefficient. Once the embedded phase is estimated, the communication receiver compares the estimates to the dictionary Ψ P SK to find the embedded communication symbols and convert them into the corresponding binary sequence.…”

Section: Symbol Detection and Data Rate For Communicationmentioning

confidence: 99%

“…The main idea about this concept is to utilize identical signals and the same antenna array for both radar (primary function) and communication (secondary function) operations simultaneously. A number of papers [16][17][18][19][20][21][22][23][24][25] have investigated the capabilities of dual-function radar-communication (DFRC) system. DFRC systems utilize the full potential of radar resources, for instance, high quality hardware and high transmit power.…”

mentioning

confidence: 99%

Dual-Function Mimo Radar-Communications Employing Frequency-Hopping Chirp Waveforms

Nusenu¹,

Wang²,

Chen³

2018

PIER M

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A dual-function radar-communication system is a technology equipped with a joint platform that enables performing a radar function (primary function) and a communication function (secondary function) simultaneously. This duality has become increasingly necessary, since it alleviates congestion and ease competition over frequency spectrum. In this paper, we put forward a technique for information embedding, specifically to multiple-input multiple-output (MIMO) radar employing frequency-hopping chirp (FHC) waveforms. We use FHC codes to implement the primary function (i.e., MIMO radar operation), while embedding communication symbol, for example, phase shift keying (PSK), in each FHC code for secondary function (i.e., communication operation). We show that the communication operation does not interfere with the MIMO radar function. In addition, standard ratio testing is used at the communication receiver to detect the embedded PSK symbols. Furthermore, the waveform designed has the superiorities of high range resolution, constant time domain and almost constant frequencydomain modulus, large time-bandwidth product, and low time-delay and frequency-shift correlation peaks. Numerical results show that: 1) data rates can be accurately detected, and thus, several Mbps are achieved in the system; 2) the SER performance characteristics are significantly improved; 3) the orthogonal frequency-hopping chirp waveforms achieve better range and Doppler resolution with reduced sidelobes levels compared to that of conventional frequency hopping waveforms. INTRODUCTIONThe concept of coexistence of radar and communications on a single platform has been proposed as a solution to the radio frequency spectrum congestion and also attracted a lot of attention [1,2]. Since there has been a huge demand from communication operators, the competition between the radar and communication in terms of frequency spectrum could be eased by allowing both systems to share the same resources and operate simultaneously from a single platform [3][4][5][6][7][8][9][10][11][12][13][14][15][16]. This implies that we can achieve an efficient utilization of the limited frequency spectrum resources. Recently, the concept of dual-function radar-communication (DFRC) has been proposed [16]. The main idea about this concept is to utilize identical signals and the same antenna array for both radar (primary function) and communication (secondary function) operations simultaneously. A number of papers [16][17][18][19][20][21][22][23][24][25] have investigated the capabilities of dual-function radar-communication (DFRC) system. DFRC systems utilize the full potential of radar resources, for instance, high quality hardware and high transmit power. Embedding information into the radiation of single-input multiple-output (SIMO) radar can be done by employing the following: 1) waveform diversity, 2) sidelobe control, and 3) time modulated array.Lately, information embedding into the radiation of multiple-input multiple-output (MIMO) radar has been reported in [23][24][...

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“…Off-line methods in the literature uses genetic algorithms [10] and second-order cone programming [13]. Transmit weight vectors can be designed off-line solving the following optimization problem from [19],…”

Section: Transmit Beamforming Design For Sidelobe Askmentioning

confidence: 99%

Utilizing sidelobe ASK based joint radar-communication system under fading

Arik

Akan

2017

MILCOM 2017 - 2017 IEEE Military Communications Conference (MILCOM)

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A joint radar-communication (JRC) system can provide cost-effective and spectrum-efficient platform solution with simultaneous operation, while accomplishing important tasks, sensing via radar processing and allocation of communication links. Existing modulation techniques where information embedding is achieved using sidelobe Amplitude-Shift Keying (ASK) for the JRC system are not investigated so far under fading channels and an optimum threshold estimation algorithm is yet to be developed. Specifying an optimum threshold level under fading can become a comprehensive problem, especially for mobile communication systems. In this paper, a novel non-data aided (NDA) threshold estimation technique and a receiver design are introduced. Furthermore, a new sidelobe ASK modulation technique is proposed for utilizing JRC system for mobile platforms under fading. Proposed modulation technique implements dual Sidelobe Level (SLL) ASK with waveform diversity by exploiting multiple orthogonal waveforms. One pair is modulated with dual SLL in amplitude rotational manner and initiates NDA threshold estimation process at the receiver. This method utilizes K bits of information using only K +1 orthogonal waveform. The performance of the proposed technique is investigated in terms of the bit error rate (BER) and data rate. Simulations reveal that the operation of proposed method coupled with NDA threshold estimation process can reach more data rate, since it exhibits almost the same BER performance as existing methods under fading channel without requiring more orthogonal waveform.

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Computationally efficient beampattern synthesis for dual-function radar-communications

Cited by 6 publications

References 30 publications

Joint radar and communication: A survey

Joint radar and communication: A survey

Dual-Function Mimo Radar-Communications Employing Frequency-Hopping Chirp Waveforms

Utilizing sidelobe ASK based joint radar-communication system under fading

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