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MIMO Waveform Design for Dual Functions of Radar and Communication With Space-Time Coding.

Authors :
Wu, Wenhua
Han, Guojun
Cao, Yunhe
Huang, Yongwei
Yeo, Tat-Soon
Source :
IEEE Journal on Selected Areas in Communications; Jun2022, Vol. 40 Issue 6, p1906-1917, 12p
Publication Year :
2022

Abstract

Sharing a multiple-input multiple-output (MIMO) radar, the single platform can achieve dual functions of radar and communication (DFRC) within the same frequency spectrum, via the same transmit waveforms. In this paper, a space-time coding scheme is developed for transmit beamforming of DFRC and embedding communication information, without their cross-interference. For transmit beampattern design of DFRC, the shape approximation and integrated power approximation criteria are adopted respectively for waveforms optimization with the constant-envelope constraints of transmit waveforms and the equivalent signal in the communication direction. Based on the space-time coding scheme, the direct constellation mapping (DCM) and phase-rotation constellation mapping (PRCM) methods are proposed to embed information symbols. It turns out that the proposed space-time coding scheme for information constellation mapping can prevent missing information symbols and have better performance in bit-error rate (BER), compared to the existing information-embedding techniques. Moreover, the scheme can reduce the dependence of the communication data rate on radar pulse repetition frequency (PRF). Simulation results are presented to demonstrate the effectiveness of the proposed methods. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
07338716
Volume :
40
Issue :
6
Database :
Complementary Index
Journal :
IEEE Journal on Selected Areas in Communications
Publication Type :
Academic Journal
Accession number :
156931385
Full Text :
https://doi.org/10.1109/JSAC.2022.3155508