Performance analysis of downlink smart antenna system with auxiliary pilot in CDMA2000 IX

Author

Lee, Weon-Cheol ; Hyeon, Seungheon ; Choi, Seungwon

Author_Institution

Yong-in Songdam Coll., South Korea

Volume

9

Issue

6

fYear

2005

fDate

6/1/2005 12:00:00 AM

Firstpage

514

Lastpage

516

Abstract

The auxiliary pilot has been defined in the CDMA2000 IX standard for the purpose of providing an accurate channel estimation to each of mobile terminals during the downlink beamforming. In this letter, we first analyze the multipath signal environment to verify under exactly what conditions the auxiliary pilot becomes inevitable and what happens if the auxiliary pilot is not assigned to each of the subscribers. Then, we present a systematic procedure of applying the auxiliary pilot together with a proper call processing method to handle the auxiliary pilot. Performance analysis is also given through the computer simulations and the experimental data obtained from the smart antenna base transceiver station (SA BTS) that has been implemented for the CDMA2000 IX standard.

Keywords

3G mobile communication; adaptive antenna arrays; channel estimation; multipath channels; radio links; radio stations; telecommunication standards; transceivers; CDMA2000 IX standard; SA BTS; auxiliary pilot; call processing method; channel estimation; downlink beamforming; mobile terminal; multipath signal environment; performance analysis; smart antenna base transceiver station; subscriber; Array signal processing; Channel estimation; Communication standards; Computer simulation; Downlink; Performance analysis; Propagation delay; Scattering; Signal analysis; Transceivers;

fLanguage

English

Journal_Title

Communications Letters, IEEE

Publisher

ieee

ISSN

1089-7798

Type

jour

DOI

10.1109/LCOMM.2005.1437355

Filename

1437355