Fast Codebook Index Searching Algorithm for a Quantized EGT in MIMO Systems

Author

Park, Noe Yoon ; Kim, Young Ju ; Li, Xun ; Lee, Kwan Seob

Author_Institution

Sch. of Electr. & Comput. Eng., Chungbuk Nat. Univ., Cheongju

fYear

2009

fDate

26-29 April 2009

Firstpage

1

Lastpage

5

Abstract

A simple, effective, fast codebook index searching algorithm for quantized equal gain transmission (QEGT) in MIMO systems is presented. Rough searching based on the newly defined metric selects a few candidates, then, accurate searching based on the conventional method determines the optimal one. This strategy reduces the overall searching time, while maintaining almost the same link-level performance. Moreover, as the codebook size increases, the searching time is greatly decreased, compared to the conventional method.

Keywords

MIMO communication; array signal processing; error statistics; fading channels; query formulation; space-time codes; MIMO systems; accurate searching; fast codebook index searching algorithm; quantized equal gain transmission; rough searching; Array signal processing; Diversity reception; Fading; Feedback; Fluctuations; MIMO; Performance gain; Receiving antennas; Transmitters; Transmitting antennas;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 2009. VTC Spring 2009. IEEE 69th

Conference_Location

Barcelona

ISSN

1550-2252

Print_ISBN

978-1-4244-2517-4

Electronic_ISBN

1550-2252

Type

conf

DOI

10.1109/VETECS.2009.5073554

Filename

5073554