Title :
Beamforming matrix quantization with variable feedback rate
Author :
Yuen, Chau ; Sun, Sumei ; Ho, Mel Meau Shin
Author_Institution :
Inst. for Infocomm Res., Singapore
Abstract :
We propose an improved beamforming matrix compression by givens rotation with the use of variable feedback rate. The variable feedback rate means that the number of bits used to represent the quantized beamforming matrix is based on the value of the matrix. Compared with the fixed feedback rate scheme, the proposed method has better performance without additional feedback bandwidth.
Keywords :
MIMO communication; array signal processing; matrix algebra; quantisation (signal); MIMO technique; beamforming matrix quantization; channel state information; feedback bandwidth; open-loop multiple-input multiple-output technique; variable feedback rate scheme; Array signal processing; Bandwidth; Communication standards; Delay estimation; Feedback; MIMO; Matrix decomposition; Performance gain; Quantization; Receiving antennas;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 2008. PIMRC 2008. IEEE 19th International Symposium on
Conference_Location :
Cannes
Print_ISBN :
978-1-4244-2643-0
Electronic_ISBN :
978-1-4244-2644-7
DOI :
10.1109/PIMRC.2008.4699541
