Dizdar, O;
Kaushik, A;
Clerckx, B;
Masouros, C;
(2021)
Rate-Splitting Multiple Access for Joint Radar-Communications with Low-Resolution DACs.
In:
Proceedings of the 2021 IEEE International Conference on Communications Workshops (ICC Workshops).
IEEE: Montreal, Canada.
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Abstract
In this paper, we introduce the design of a multi-antenna Joint Radar-Communication (JRC) system with Rate Splitting Multiple Access (RSMA) and low resolution Digital-to-Analog Converter (DAC) units. Using RSMA, the communication messages are split into private and common parts, then precoded and quantized before transmission. We use a problem formulation to design the JRC system with RSMA and low resolution DACs by maximizing communication sum-rate and the proximity of the resulting JRC waveform to an optimal radar beampattern under an average transmit power constraint. We solve the joint sum-rate maximization and beampattern error minimization problem using Alternating Direction Method of Multipliers (ADMM) method. The numerical results show that RSMA achieves a significantly higher sum-rate compared to Space Division Multiple Access (SDMA) while providing the same Normalized Mean Square Error (NMSE) for the designed radar beampattern.
| Type: | Proceedings paper |
|---|---|
| Title: | Rate-Splitting Multiple Access for Joint Radar-Communications with Low-Resolution DACs |
| Event: | 2021 IEEE International Conference on Communications Workshops (ICC Workshops) |
| Location: | Montreal, Canada |
| ISBN-13: | 978-1-7281-9441-7 |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1109/ICCWorkshops50388.2021.9473742 |
| Publisher version: | https://doi.org/10.1109/ICCWorkshops50388.2021.947... |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | Rate splitting multiple access, joint radar-communication, radar beampattern, low resolution DACs |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Electronic and Electrical Eng |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10125196 |
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