eprintid: 10206019
rev_number: 6
eprint_status: archive
userid: 699
dir: disk0/10/20/60/19
datestamp: 2025-03-13 13:18:45
lastmod: 2025-03-13 13:18:45
status_changed: 2025-03-13 13:18:45
type: proceedings_section
metadata_visibility: show
sword_depositor: 699
creators_name: Liang, M
creators_name: Li, A
creators_name: Hu, X
creators_name: Masouros, C
title: A New Extrapolation Solution for MU-MISO Symbol-Level Precoding
ispublished: pub
divisions: UCL
divisions: B04
divisions: F46
keywords: Wireless communication, Phase shift keying, Extrapolation,
Quadrature amplitude modulation, Precoding, Simulation,
Symbols, Signal processing algorithms, Modulation, Interference
note: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
abstract: Constructive interference (CI) precoding, which converts the harmful multi-user interference into beneficial signals, is a promising and efficient interference management scheme in multi-antenna communication systems. However, CI-based symbol-level precoding (SLP) experiences high computational complexity as the number of symbol slots increases within a transmission block, rendering it unaffordable in practical communication systems. In this paper, we propose a symbol-level extrapolation (SLE) strategy to extrapolate the precoding matrix by leveraging the relationship between different symbol slots within in a transmission block, during which the channel state information (CSI) remains constant, where we design a closed-form iterative algorithm based on SLE both for PSK and QAM modulation. In order to further reduce the computational complexity, a sub-optimal closed-form solution based on SLE is further developed. Extensive simulation results illustrate that the proposed algorithms can dramatically reduce the computational complexity and time complexity with only marginal performance loss, compared with the conventional SLP design methods.
date: 2025-01-14
date_type: published
publisher: IEEE
official_url: https://doi.org/10.1109/wcsp62071.2024.10827608
oa_status: green
full_text_type: other
language: eng
primo: open
primo_central: open_green
verified: verified_manual
elements_id: 2362391
doi: 10.1109/WCSP62071.2024.10827608
isbn_13: 979-8-3503-9064-3
lyricists_name: Masouros, Christos
lyricists_id: CMASO14
actors_name: Masouros, Christos
actors_id: CMASO14
actors_role: owner
full_text_status: public
pres_type: paper
publication: 16th International Conference on Wireless Communications and Signal Processing, WCSP 2024
place_of_pub: Hefei, China
pagerange: 199-204
event_title: 2024 16th International Conference on Wireless Communications and Signal Processing (WCSP)
event_dates: 24 Oct 2024 - 26 Oct 2024
book_title: 2024 16th International Conference on Wireless Communications and Signal Processing (WCSP)
citation:        Liang, M;    Li, A;    Hu, X;    Masouros, C;      (2025)    A New Extrapolation Solution for MU-MISO Symbol-Level Precoding.                     In:  2024 16th International Conference on Wireless Communications and Signal Processing (WCSP).  (pp. pp. 199-204).  IEEE: Hefei, China.       Green open access   
 
document_url: https://discovery.ucl.ac.uk/id/eprint/10206019/1/m38225-liang%20paper.pdf