Max-Min Beamforming with Cooperative Multipoint Transmission

Author

Dartmann, Guido ; Gong, Xitao ; Ascheid, Gerd

Author_Institution

Dept. of Integrated Signal Process. Syst., RWTH Aachen Univ., Aachen, Germany

fYear

2011

fDate

5-8 Sept. 2011

Firstpage

1

Lastpage

5

Abstract

In a network with frequency reuse-1 intercell interference(ICI) is a limiting factor. Especially cell edge users are subject to strong ICI. In long term evolution (LTE) those users can be served by multiple base stations (BSs). By using a cooperation among multiple BSs, the signal to interference and noise ratio (SINR) can be balanced. In this paper a fast (direct)solution for the SINR balancing is presented and the optimality is proven for the coherent cooperative multipoint transmission. A coherent transmission over multiple links is difficult in practice. Therefore, a non-coherent algorithm is presented as well and compared with the coherent algorithm.

Keywords

Long Term Evolution; array signal processing; cooperative communication; frequency allocation; radiofrequency interference; ICI; LTE; SINR balancing; base stations; cell edge users; coherent cooperative multipoint transmission; frequency reuse-1 intercell interference; long term evolution; max-min beamforming; multiple-BS; noncoherent algorithm; signal-to-interference-and-noise ratio; Array signal processing; Bismuth; Downlink; Interference; Optimization; Signal to noise ratio; Vectors;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference (VTC Fall), 2011 IEEE

Conference_Location

San Francisco, CA

ISSN

1090-3038

Print_ISBN

978-1-4244-8328-0

Type

conf

DOI

10.1109/VETECF.2011.6092801

Filename

6092801