MIMO OFDM Dual-Function Radar-Communication Under Error Rate and Beampattern Constraints
2022; Institute of Electrical and Electronics Engineers; Volume: 40; Issue: 6 Linguagem: Inglês
10.1109/jsac.2022.3156651
ISSN1558-0008
AutoresJeremy Johnston, Luca Venturino, Emanuele Grossi, Marco Lops, Xiaodong Wang,
Tópico(s)Ocean Waves and Remote Sensing
ResumoIn this work we consider a multiple-input multiple-output (MIMO) dual-function radar-communication (DFRC) system, which senses multiple spatial directions and serves multiple users. Upon resorting to an orthogonal frequency division multiplexing (OFDM) transmission format and a differential phase shift keying (DPSK) modulation, we study the design of the radiated waveforms and of the receive filters employed by the radar and the users. The approach is communication-centric, in the sense that a radar-oriented objective is optimized under constraints on the average transmit power, the power leakage towards specific directions, and the error rate of each user, thus safeguarding the communication quality of service (QoS). We adopt a unified design approach allowing a broad family of radar objectives, including both estimation- and detection-oriented merit functions. We devise a suboptimal solution based on alternating optimization of the involved variables, a convex restriction of the feasible search set, and minorization-maximization, offering a single algorithm for all of the radar merit functions in the considered family. Finally, the performance is inspected through numerical examples.
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