Impact of base station cooperation in multi-antenna cellular system

Author

Taniguchi, Tetsuki ; Karasawa, Yoshio ; Nakajima, Nobuo

Author_Institution

Dept. of Electron. Eng., Univ. of Electro-Commun. (UEC), Chofu, Japan

fYear

2009

fDate

28-29 Sept. 2009

Firstpage

25

Lastpage

28

Abstract

In cellular systems, the user terminals are suffered from the attenuation of the signal from the base station (BS) and the interferences from other users. This paper considers the improvement of this bad situation by BS cooperation (BSC) in the downlink scenario assuming multi-antenna schemes, and compares the effectiveness of several strategies based on a three cell model. The result shows the advantage of BSC, and the simple ZF (zero forcing) based approach has an advantage under the high SNR (signal to noise ration) scenario, while the circular iterative weight design proposed by authors shows the best performance in the low SNR region.

Keywords

antenna arrays; cellular radio; iterative methods; mobile antennas; radiofrequency interference; base station cooperation; cell model; circular iterative weight design; downlink scenario; multiantenna cellular system; radiofrequency interferences; signal attenuation; signal-to-noise ratio; user terminals; zero forcing-based approach; Attenuation; Base stations; Downlink; Geometry; Humans; Interference; Iterative methods; MIMO; Signal to noise ratio; Wireless communication; Cooperative systems; MIMO systems; arrays signal processing; land mobile radio;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Technology Conference, 2009. EuWIT 2009. European

Conference_Location

Rome

Print_ISBN

978-1-4244-4721-3

Type

conf

Filename

5290940