MIMO channels with limited rate feedback and RVQ

Date

2007-06-13

Author

Yılmaz, Ali Özgür
Guevensen, Goekhan Muzaffer

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This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

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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.

Subject Keywords

MIMO, Channel state information, Transmitters, State feedback, Vector quantization, Array signal processing

URI

https://hdl.handle.net/11511/34774

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Department of Electrical and Electronics Engineering, Conference / Seminar