Wei, Zhongxiang;
Masouros, Christos;
Wang, Ping;
Zhu, Xu;
Zeng, Haiyong;
Tang, Hong;
Zheng, Yan;
(2022)
Beyond Non-Orthogonal Multiple Access: New Role of Constructive Interference.
IEEE Wireless Communications Letters
10.1109/lwc.2022.3197633.
(In press).
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Abstract
In this paper, we introduce a novel framework of constructive non-orthogonal multiple access (NOMA) transmission, which provides the merit of interference utilization and breaks through the constructive interference (CI)’s limitation on multiuser (MU) access capability. With dedicated synthetic successive coding and hybrid MU access designs, a novel constructive NOMA (CNOMA) precoder is proposed, which is particularly suitable for the scenario where users have heterogeneous throughput requirements. Explicitly, it makes the composite interference always beneficial to the users having high throughput requirement, while accommodating another sets of users under their subscribed reception-quality requirement. Finally, a number of fundamental properties of the CNOMA design is revealed, such as the tradeoff between utilization of MU interference and improvement of MU access capability. Simulation demonstrates that the proposed CNOMA precoder significantly outperforms the classic CI and minimum-mean-square-error precoders in throughput performance, and meanwhile obtains high access capability close to classic NOMA designs.
| Type: | Article |
|---|---|
| Title: | Beyond Non-Orthogonal Multiple Access: New Role of Constructive Interference |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1109/lwc.2022.3197633 |
| Publisher version: | https://doi.org/10.1109/lwc.2022.3197633 |
| 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: | NOMA, Interference, Signal to noise ratio, Throughput, MIMO communication, Precoding, Symbols |
| UCL classification: | 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 UCL > Provost and Vice Provost Offices > UCL BEAMS UCL |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10154117 |
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