DocumentCode
2140417
Title
A codebook with low complexity for limited feedback precoding
Author
Cao, Fengming ; Sandell, Magnus ; Tosato, Filippo
Author_Institution
Telecommun. Res. Lab., Toshiba Res. Eur. Ltd., Bristol, UK
fYear
2009
fDate
13-16 Sept. 2009
Firstpage
1302
Lastpage
1306
Abstract
Codebook-based limited feedback precoded MIMO systems involve vector quantization, which may require intensive computations, especially for large codebooks. In this paper we show how the complexity and codebook storage can be significantly reduced by using a special alphabet to generate the codebook. Simulation results show that the performance with the generated codebook is comparable with other codebooks which have higher complexity.
Keywords
MIMO communication; computational complexity; precoding; vector quantisation; MIMO systems; codebook storage; complexity storage; limited feedback precoding; vector quantization; Channel state information; Computational modeling; Distortion measurement; Europe; Feedback; Image storage; MIMO; Telecommunication computing; Transmitters; Vector quantization; MIMO; codebook; vector quantization;
fLanguage
English
Publisher
ieee
Conference_Titel
Personal, Indoor and Mobile Radio Communications, 2009 IEEE 20th International Symposium on
Conference_Location
Tokyo
Print_ISBN
978-1-4244-5122-7
Electronic_ISBN
978-1-4244-5123-4
Type
conf
DOI
10.1109/PIMRC.2009.5450321
Filename
5450321
Link To Document