TY  - GEN
N1  - This version is the author accepted manuscript. For information on re-use, please refer to the publisher?s terms and conditions.
AV  - public
Y1  - 2025/01/14/
SP  - 199
EP  - 204
TI  - A New Extrapolation Solution for MU-MISO Symbol-Level Precoding
A1  - Liang, M
A1  - Li, A
A1  - Hu, X
A1  - Masouros, C
KW  - Wireless communication
KW  -  Phase shift keying
KW  -  Extrapolation
KW  - 
Quadrature amplitude modulation
KW  -  Precoding
KW  -  Simulation
KW  - 
Symbols
KW  -  Signal processing algorithms
KW  -  Modulation
KW  -  Interference
CY  - Hefei, China
UR  - https://doi.org/10.1109/wcsp62071.2024.10827608
PB  - IEEE
N2  - 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.
ID  - discovery10206019
ER  -