论文标题
vandermonde限制张量分解，用于在多携带者MIMO系统中进行混合光束形成
Vandermonde Constrained Tensor Decomposition for Hybrid Beamforming in Multi-Carrier MIMO Systems
论文作者
论文摘要
混合波束形成已成为一种有前途的技术，它在MMWave MIMO系统中提供了系统性能与设计复杂性之间的平衡。现有的混合束面方法要么对模拟预编码器/组合符对单位模式约束或代码簿约束，这反过来又导致了性能折衷方案。本文提出了一个张量框架，以处理宽带混合边缘问题，并在模拟预编码器/组合器上限制了Vandermonde的约束。提出的方法达到了性能，开销和复杂性之间的平衡。 3GPP链接级测试工作台上的数值结果揭示了所提出的方法相对于基于代码书的方法的功效，同时获得了相同的反馈开销。此外，所提出的方法显示出与单位模式方法相当的性能，开销大量降低。
Hybrid beamforming has evolved as a promising technology that offers the balance between system performance and design complexity in mmWave MIMO systems. Existing hybrid beamforming methods either impose unit-modulus constraints or a codebook constraint on the analog precoders/combiners, which in turn results in a performance-overhead tradeoff. This paper puts forth a tensor framework to handle the wideband hybrid beamforming problem, with Vandermonde constraints on the analog precoders/combiners. The proposed method strikes the balance between performance, overhead and complexity. Numerical results on a 3GPP link-level test bench reveal the efficacy of the proposed approach relative to the codebook-based method while attaining the same feedback overhead. Moreover, the proposed method is shown to achieve comparable performance to the unit-modulus approaches, with substantial reductions in overhead.
