MIMO channels with limited rate feedback and RVQ

2007-06-13
Yılmaz, Ali Özgür
Guevensen, Goekhan Muzaffer
The capacity increases promised by multi-input multi-output (MIMO) systems usually come with requirements in regard to channel knowledge. We study the capacity of a MIMO scheme with perfect channel state information (CSI) at the receiver side where the transmitter has only a quantized version of the CSI due to a limited rate feedback channel. Random vector quantization is investigated along with a reduced number of precoders. It is found out that capacity losses are quite tolerable even in the case of small number of bits per quantized precoder.
Citation Formats
A. Ö. Yılmaz and G. M. Guevensen, “MIMO channels with limited rate feedback and RVQ,” 2007, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/34774.