Optimization of antenna configuration for MIMO systems

Author

Du, Jianxuan ; Li, Ye

Author_Institution

Sch. of Electr. & Comput. Eng., Georgia Inst. of Technol., USA

Volume

2

fYear

2003

fDate

1-5 Dec. 2003

Firstpage

849

Abstract

In this paper, we investigate the issue of selecting the number of antennas at the base station and at the mobile to optimize asymptotic ergodic capacity of a multiple-input-multiple-output (MIMO) system when the costs of implementing antennas at the base station and at the mobile are unequal. Total system capacity, defined as a linear combination of the uplink and downlink ergodic capacity, is used as the objective function to be maximized. The limiting case gives some insight on how the ratio of the number of antennas at the base station to the number of antennas at the mobile may change with signal-to-noise ratio (SNR) and cost ratio when the total system capacity is maximized.

Keywords

MIMO systems; antenna arrays; optimisation; MIMO system; SNR; antenna configuration optimization; asymptotic ergodic capacity optimization; cost ratio; multiple input, multiple output system; signal-to-noise ratio; system capacity; Base stations; Cost function; Downlink; MIMO; Mobile antennas; Mobile computing; Niobium; Receiving antennas; Signal to noise ratio; Transmitting antennas;

fLanguage

English

Publisher

ieee

Conference_Titel

Global Telecommunications Conference, 2003. GLOBECOM '03. IEEE

Print_ISBN

0-7803-7974-8

Type

conf

DOI

10.1109/GLOCOM.2003.1258359

Filename

1258359