Abstract
In this paper, we analyze and compare the performance of conventional maximum-ratio (MR) precoding to a proposed alternative scheme, when applied
to a massive multiple-input multiple-output (MIMO) system with multiple-antenna users. In the proposed MR precoding scheme, each channel vector is divided by its norm square to increase the degree of hardening of the effective channel gains at the users. We derive closed-form expressions for the achievable spectral efficiency (SE) of both the conventional and proposed precoding schemes. These closed-form expressions are very simple and useful for further system design. For instance, for both precoding schemes, our results justify the motivation for additional user antennas since significant performance improvements are observed. The proposed scheme produces greater performance when compared to the conventional one across a range of system set-ups. More specifically, the proposed scheme is most effective in systems where the numbers of users and user antennas are kept small.
to a massive multiple-input multiple-output (MIMO) system with multiple-antenna users. In the proposed MR precoding scheme, each channel vector is divided by its norm square to increase the degree of hardening of the effective channel gains at the users. We derive closed-form expressions for the achievable spectral efficiency (SE) of both the conventional and proposed precoding schemes. These closed-form expressions are very simple and useful for further system design. For instance, for both precoding schemes, our results justify the motivation for additional user antennas since significant performance improvements are observed. The proposed scheme produces greater performance when compared to the conventional one across a range of system set-ups. More specifically, the proposed scheme is most effective in systems where the numbers of users and user antennas are kept small.
| Original language | English |
|---|---|
| Title of host publication | IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC) |
| Publisher | Institute of Electrical and Electronics Engineers Inc. |
| Number of pages | 6 |
| ISBN (Electronic) | 978-1-5386-8110-7 |
| Publication status | Published - 21 Nov 2019 |
Publication series
| Name | IEEE 30th Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC): Proceedings |
|---|---|
| Publisher | IEEE |
| ISSN (Print) | 2166-9570 |
| ISSN (Electronic) | 2166-9589 |
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Dive into the research topics of 'Performance of a Novel Maximum-Ratio Precoder in Massive MIMO with Multiple-Antenna Users'. Together they form a unique fingerprint.Student theses
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Analysis and low-complexity design for cellular and cell-free massive MIMO
Sutton, J. (Author), Matthaiou, M. (Supervisor) & Ngo, H. Q. (Supervisor), Jul 2023Student thesis: Doctoral Thesis › Doctor of Philosophy
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