Symbol-Level Precoding Through the Lens of Zero Forcing and Vector Perturbation
Symbol-Level Precoding Through the Lens of Zero Forcing and Vector Perturbation
Symbol-level precoding (SLP) has recently emerged as a new paradigm for physical-layer transmit precoding in multiuser multi-input-multi-output (MIMO) channels. It exploits the underlying symbol constellation structure, which the conventional paradigm of linear precoding does not, to enhance symbol-level performance such as symbol error probability (SEP). It also allows the precoder …