Wong, KK;
Chae, CB;
Zhang, Y;
(2024)
On rate performance of M-ary amplitude shift keying compact ultra massive array systems for massive connectivity.
Electronics Letters
, 60
(5)
, Article e13077. 10.1049/ell2.13077.
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Abstract
Compact ultra massive array (CUMA) is a new form of the emerging fluid antenna system where a huge number of flexible-position antennas are selected to produce the output signal. By making sure that the in-phase channels (similarly for the quadrature channels) of the desired signal at the selected antenna ports align, it builds an advantage of the desired signal over the interference. It is known that CUMA as a multiple access scheme is able to deal with hundreds of users on the same channel use, in the case of rich scattering, if binary phase shift keying is considered. It is nevertheless unclear if higher-level modulation can bring even greater network rate in this extreme massive connectivity scenario. This letter investigated this situation by presenting the average data rate expression of CUMA when M-ary amplitude shift keying is used, assuming a binary symmetric channel. Numerical results reveal that M-ary amplitude shift keying can indeed raise the rate performance considerably.
| Type: | Article |
|---|---|
| Title: | On rate performance of M-ary amplitude shift keying compact ultra massive array systems for massive connectivity |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1049/ell2.13077 |
| Publisher version: | https://doi.org/10.1049/ell2.13077 |
| Language: | English |
| Additional information: | © 2024 The Authors. Electronics Letters published by John Wiley & Sons Ltd on behalf of The Institution of Engineering and Technology. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. |
| Keywords: | antenna arrays, MIMO communication, multi-access systems, multiuser channels |
| 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/10189089 |
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