Non-Linear Ordered Precoding with Limited Feedback for Multiuser MIMO systems

Abstract

Using of quantized channel state information on transmitter (CSIT) side for adaptive signal processing on base station (BS) side also called as precoding provides to reduce feedback channel bandwidth in comparison with full CSIT. There are many solutions for feedback channel quantization but the aim of this paper is to note the performance of grassmannian manifold for codebook design.

Keywords

• Multiuser MIMO
• MU-MIMO
• CLTD-OSIC precoding
• grassmannian manifold
• quantizaion codebook