论文标题
顺序参数优化，用于非正交单播和多播式传输中的速率分解预编码
Sequential Parametric Optimization for Rate-Splitting Precoding in Non-Orthogonal Unicast and Multicast Transmissions
论文作者
论文摘要
本文使用完全数字和混合预编码器研究了非正交单播和多播（NOUM）传输的速率（RS）预编码。我们研究非凸（WSR）最大化问题的非概念加权总和。我们提出了基于顺序参数优化的方法，以解决上述问题。我们表明，Falcon会收敛到本地最佳，而无需明智地选择初始可行点。此外，我们通过模拟表明，通过利用RS，混合预编码器可以在某些特定的设置下达到与完全数字的同行相同的性能。
This paper investigates rate-splitting (RS) precoding for non-orthogonal unicast and multicast (NOUM) transmissions using fully-digital and hybrid precoders. We study the nonconvex weighted sum-rate (WSR) maximization problem subject to a multicast requirement. We propose FALCON, an approach based on sequential parametric optimization, to solve the aforementioned problem. We show that FALCON converges to a local optimum without requiring judicious selection of an initial feasible point. Besides, we show through simulations that by leveraging RS, hybrid precoders can attain nearly the same performance as their fully-digital counterparts under certain specific settings.
