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Linear Precoding and Stream Combining for Rate Splitting in Multiuser MIMO Systems
IEEE Communications Letters ( IF 3.7 ) Pub Date : 2020-04-01 , DOI: 10.1109/lcomm.2020.2969158
Andre R. Flores , Rodrigo C. de Lamare , Bruno Clerckx

This letter develops practical linear precoding and stream combining techniques for rate-splitting (RS) in multiuser multiple-input multiple-output (MIMO) systems. 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.

中文翻译:

用于多用户 MIMO 系统中速率分裂的线性预编码和流组合

这封信为多用户多输入多输出 (MIMO) 系统中的速率拆分 (RS) 开发了实用的线性预编码和流组合技术。我们为基于 RS 的多用户多天线系统提出了基于 Min-Max、最大比率和最小均方误差标准以及正则化块对角化 (RBD) 预编码器的线性组合技术。对总速率性能进行分析,得出封闭形式的表达式。仿真表明,与传统的线性预编码方案相比,所提出的组合方案提供了显着的总速率性能增益。
更新日期:2020-04-01
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