This paper proposes a novel hardware beamforming architecture, which is capable of utilizing a different number of Radio Frequency (RF) chains in different parts of the bandwidth. It also shows that a proportional fairness scheduler will effectively utilize the high rank part of the bandwidth in a multi-user setting, thus operating more efficiently and effectively than classical beamforming schemes.

翻译：本文提出了一种新型硬件波束赋形架构，该架构能够在带宽的不同部分使用不同数量的射频（RF）链路。研究还表明，在多用户场景下，比例公平调度器将有效利用带宽的高秩部分，从而比传统波束赋形方案运行得更高效、更有效。