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Interference Exploitation Precoding for Multi-Level Modulations

Abstract: 

In this paper, we investigate the interference exploitation precoding for multi-level modulations in the downlink multi-antenna systems. We mathematically derive the optimal precoding structures based on the Karush-Kuhn-Tucker (KKT) conditions. Furthermore, by formulating the dual problem, the precoding problem for multi-level modulations can be transformed into a pre-scaling operation using quadratic programming (QP) optimization. Compared to the original second-order cone programming (SOCP) formulation, this transformation that finally leads to a QP optimization allows a considerable complexity reduction. Simulation results validate our derivations on the optimal precoding structure, and demonstrate significant performance improvements for interference exploitation precoding over traditional precoding methods for multi-level modulations.

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Paper Details

Authors:
Ang Li, Christos Masouros, Yonghui Li, and Branka Vucetic
Submitted On:
8 May 2019 - 5:53am
Short Link:
Type:
Poster
Event:
Presenter's Name:
ANG LI
Paper Code:
SPCOM-P3.1
Document Year:
2019
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[1] Ang Li, Christos Masouros, Yonghui Li, and Branka Vucetic, "Interference Exploitation Precoding for Multi-Level Modulations", IEEE SigPort, 2019. [Online]. Available: http://sigport.org/4059. Accessed: May. 23, 2019.
@article{4059-19,
url = {http://sigport.org/4059},
author = {Ang Li; Christos Masouros; Yonghui Li; and Branka Vucetic },
publisher = {IEEE SigPort},
title = {Interference Exploitation Precoding for Multi-Level Modulations},
year = {2019} }
TY - EJOUR
T1 - Interference Exploitation Precoding for Multi-Level Modulations
AU - Ang Li; Christos Masouros; Yonghui Li; and Branka Vucetic
PY - 2019
PB - IEEE SigPort
UR - http://sigport.org/4059
ER -
Ang Li, Christos Masouros, Yonghui Li, and Branka Vucetic. (2019). Interference Exploitation Precoding for Multi-Level Modulations. IEEE SigPort. http://sigport.org/4059
Ang Li, Christos Masouros, Yonghui Li, and Branka Vucetic, 2019. Interference Exploitation Precoding for Multi-Level Modulations. Available at: http://sigport.org/4059.
Ang Li, Christos Masouros, Yonghui Li, and Branka Vucetic. (2019). "Interference Exploitation Precoding for Multi-Level Modulations." Web.
1. Ang Li, Christos Masouros, Yonghui Li, and Branka Vucetic. Interference Exploitation Precoding for Multi-Level Modulations [Internet]. IEEE SigPort; 2019. Available from : http://sigport.org/4059