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arXiv · 2003.03486

Study of Linear Precoding and Stream Combining for Rate Splitting in MU-MIMO Systems

A. Flores·R. C. de Lamare·B. Clerckx
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Abstract

This paper develops stream combining techniques for rate-splitting (RS) multiple-antenna systems with multiple users to enhance the common rate. We propose linear combining techniques based on the Min-Max, the maximum ratio and the minimum mean-square error criteria along with Regularized Block Diagonalization (RBD) precoders for RS-based multiuser multiple-antenna systems. An analysis of the sum rate performance is carried out, leading to closed-form expressions. Simulations show that the proposed combining schemes offer a significant sum rate performance gain over conventional linear precoding schemes.

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A. Flores, R. C. de Lamare, B. Clerckx. 2020-03-07. Study of Linear Precoding and Stream Combining for Rate Splitting in MU-MIMO Systems. https://arxiv.org/abs/2003.03486

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