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Robust Multi-User Analog Beamforming in mmWave MIMO Systems

Abstract: 

In this paper, we propose a robust analog-only beamforming scheme for the downlink multi-user systems, which not only suppresses the interference and enhances the beamform- ing gain, but also provides robustness against imperfect channel state information (CSI). We strike a balance between the average beamforming gain and the inter-user interference by formulating a multi-objective problem. A probabilistic objective of leakage interference power is formulated to alleviate the effects of the channel estimation and feedback quantization errors. To solve the problem, we first use the sum-weighted method to transform the multi-objective problem into a single-objective problem. Then, we use the semi-definite programing technique to make the constant- magnitude constraints of the analog beamforming tractable. Simulation results show that our proposed robust beamformer can provide up to 120% improvement in the sum-rate compared to the beam selection method.

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Paper Details

Authors:
Lisi Jiang, Hamid Jafarkhani
Submitted On:
26 November 2018 - 7:06pm
Short Link:
Type:
Presentation Slides
Event:
Presenter's Name:
Lisi Jiang
Paper Code:
MMW-L.2.4
Document Year:
2018
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Robust Multi-User Analog Beamforming in mmWave MIMO Systems.pdf

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[1] Lisi Jiang, Hamid Jafarkhani, "Robust Multi-User Analog Beamforming in mmWave MIMO Systems", IEEE SigPort, 2018. [Online]. Available: http://sigport.org/3794. Accessed: Dec. 13, 2018.
@article{3794-18,
url = {http://sigport.org/3794},
author = {Lisi Jiang; Hamid Jafarkhani },
publisher = {IEEE SigPort},
title = {Robust Multi-User Analog Beamforming in mmWave MIMO Systems},
year = {2018} }
TY - EJOUR
T1 - Robust Multi-User Analog Beamforming in mmWave MIMO Systems
AU - Lisi Jiang; Hamid Jafarkhani
PY - 2018
PB - IEEE SigPort
UR - http://sigport.org/3794
ER -
Lisi Jiang, Hamid Jafarkhani. (2018). Robust Multi-User Analog Beamforming in mmWave MIMO Systems. IEEE SigPort. http://sigport.org/3794
Lisi Jiang, Hamid Jafarkhani, 2018. Robust Multi-User Analog Beamforming in mmWave MIMO Systems. Available at: http://sigport.org/3794.
Lisi Jiang, Hamid Jafarkhani. (2018). "Robust Multi-User Analog Beamforming in mmWave MIMO Systems." Web.
1. Lisi Jiang, Hamid Jafarkhani. Robust Multi-User Analog Beamforming in mmWave MIMO Systems [Internet]. IEEE SigPort; 2018. Available from : http://sigport.org/3794