Toward Dual-functional Radar-Communication Systems: Optimal Waveform Design

We focus on a dual-functional multi-input-multi-output (MIMO) radar-communication (RadCom) system, where a single transmitter with multiple antennas communicates with downlink cellular users and detects radar targets simultaneously. Several design criteria are considered for minimizing the downlink...

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Bibliographic Details
Published in:	IEEE transactions on signal processing Vol. 66; no. 16; pp. 4264 - 4279
Main Authors:	Liu, Fan, Zhou, Longfei, Masouros, Christos, Li, Ang, Luo, Wu, Petropulu, Athina
Format:	Journal Article
Language:	English
Published:	IEEE 15.08.2018
Subjects:	Downlink global minimizer Interference MIMO radar multi-user interference non-convex optimization Optimization Radar antennas radar-communication Signal processing algorithms Spectrum sharing
ISSN:	1053-587X, 1941-0476
Online Access:	Get full text
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Abstract	We focus on a dual-functional multi-input-multi-output (MIMO) radar-communication (RadCom) system, where a single transmitter with multiple antennas communicates with downlink cellular users and detects radar targets simultaneously. Several design criteria are considered for minimizing the downlink multiuser interference. First, we consider both omnidirectional and directional beampattern design problems, where the closed-form globally optimal solutions are obtained. Based on the derived waveforms, we further consider weighted optimizations targeting a flexible tradeoff between radar and communications performance and introduce low-complexity algorithms. Moreover, to address the more practical constant modulus waveform design problem, we propose a branch-and-bound algorithm that obtains a globally optimal solution, and derive its worst-case complexity as function of the maximum iteration number. Finally, we assess the effectiveness of the proposed waveform design approaches via numerical results.
AbstractList	We focus on a dual-functional multi-input-multi-output (MIMO) radar-communication (RadCom) system, where a single transmitter with multiple antennas communicates with downlink cellular users and detects radar targets simultaneously. Several design criteria are considered for minimizing the downlink multiuser interference. First, we consider both omnidirectional and directional beampattern design problems, where the closed-form globally optimal solutions are obtained. Based on the derived waveforms, we further consider weighted optimizations targeting a flexible tradeoff between radar and communications performance and introduce low-complexity algorithms. Moreover, to address the more practical constant modulus waveform design problem, we propose a branch-and-bound algorithm that obtains a globally optimal solution, and derive its worst-case complexity as function of the maximum iteration number. Finally, we assess the effectiveness of the proposed waveform design approaches via numerical results.
Author	Luo, Wu Li, Ang Liu, Fan Masouros, Christos Zhou, Longfei Petropulu, Athina
Author_xml	– sequence: 1 givenname: Fan orcidid: 0000-0002-5299-9317 surname: Liu fullname: Liu, Fan email: liufan92@bit.edu.cn organization: School of Information and Electronics, Beijing Institute of Technology, Beijing, China – sequence: 2 givenname: Longfei orcidid: 0000-0002-0203-3653 surname: Zhou fullname: Zhou, Longfei email: zhoulongfei@pku.edu.cn organization: State Key Laboratory of Advanced Optical Communication Systems and Networks, Peking University, Beijing, China – sequence: 3 givenname: Christos orcidid: 0000-0002-8259-6615 surname: Masouros fullname: Masouros, Christos email: chris.masouros@ieee.org organization: Department of Electronic and Electrical Engineering, University College London, London, U.K – sequence: 4 givenname: Ang orcidid: 0000-0001-8235-7596 surname: Li fullname: Li, Ang email: ang.li.14@ucl.ac.uk organization: Department of Electronic and Electrical Engineering, University College London, London, U.K – sequence: 5 givenname: Wu surname: Luo fullname: Luo, Wu email: luow@pku.edu.cn organization: State Key Laboratory of Advanced Optical Communication Systems and Networks, Peking University, Beijing, China – sequence: 6 givenname: Athina orcidid: 0000-0001-7380-7815 surname: Petropulu fullname: Petropulu, Athina email: athinap@rutgers.edu organization: Department of Electrical and Computer Engineer-ing, Rutgers, State University of New Jersey, Piscataway, NJ, USA
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Snippet	We focus on a dual-functional multi-input-multi-output (MIMO) radar-communication (RadCom) system, where a single transmitter with multiple antennas...
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SubjectTerms	Downlink global minimizer Interference MIMO radar multi-user interference non-convex optimization Optimization Radar antennas radar-communication Signal processing algorithms Spectrum sharing
Title	Toward Dual-functional Radar-Communication Systems: Optimal Waveform Design
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