Regularized Zero-Forcing for Multiantenna Broadcast Channels with User Selection

Zijian Wang; Wen Chen

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arXiv · 2003.09923

Regularized Zero-Forcing for Multiantenna Broadcast Channels with User Selection

Zijian Wang·Wen Chen

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Abstract

A multiantenna multiuser broadcast channel with transmitter beamforming and user selection is considered. Different from the conventional works, we consider imperfect channel state information (CSI) which is a practical scenario for multiuser broadcast channels. We propose a robust regularized zero-forcing (RRZF) beamforming at the base station. Then we show that the RRZF outperforms zero-forcing (ZF) and regularized ZF (RZF) beamforming even as the number of users grows to infinity. Simulation results validate the advantage of the proposed robust RZF beamforming.

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BibTeX RIS

Zijian Wang, Wen Chen. 2020-03-22. Regularized Zero-Forcing for Multiantenna Broadcast Channels with User Selection. https://arxiv.org/abs/2003.09923

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