Efficient and low-complexity user selection for the multiuser MISO downlink

Author

Karachontzitis, Sotiris ; Toumpakaris, Dimitris

Author_Institution

Dept. of Electr. & Comput. Eng., Univ. of Patras, Rio, Greece

fYear

2009

fDate

13-16 Sept. 2009

Firstpage

3094

Lastpage

3098

Abstract

In this work an efficient low-complexity user selection algorithm for the multiuser MISO downlink wireless channel is presented. The algorithm combines Zero-Forcing linear precoding with low-complexity correlation-based Space Division Multiple Access (SDMA) and aims at maximizing the sum rate of all system users. The complexity of the algorithm is analyzed and is shown to be lower than previously proposed schemes. Moreover, simulation results indicate that the performance penalty is small.

Keywords

MIMO communication; linear codes; precoding; radio links; space division multiple access; wireless channels; SDMA; low-complexity correlation-based space division multiple access; low-complexity user selection; multiuser MISO downlink wireless channel; zero-forcing linear precoding; Algorithm design and analysis; Array signal processing; Downlink; Helium; Laboratories; MIMO; Multiaccess communication; Receiving antennas; Resource management; System performance; MISO; Multiuser Diversity; SDMA; Zero-Forcing Beamforming;

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.2009.5449892

Filename

5449892