Free-space experiments with MIMO UMTS high speed downlink packet access

Author

Mehlfuehrer, C. ; Mayer, L. ; Langwieser, R. ; Scholtz, A.L. ; Rupp, M.

Author_Institution

Vienna Univ. of Technol., Austria

fYear

2005

fDate

19-20 Sept. 2005

Abstract

The HSDPA (high speed downlink packet access) mode of UMTS provides high data rates to the user. In this contribution comparisons, based on free space measurements, between SISO (single input single output) HSDPA and MIMO (multiple input multiple output) HSDPA are shown. For two transmit antennas the STTD (space-time transmit diversity) mode of UMTS is used to increase the diversity order of the transmission. Measurements with four transmit antennas are carried out incorporating the DSTTD-SGRC (double space-time transmit diversity with sub-group rate control) proposal of MERL (Mitsubishi Electric Research Laboratories). Besides the comparison of the various HSDPA schemes, this paper focuses on the setup of the radio frequency frontend and its requirements for MIMO transmissions.

Keywords

3G mobile communication; MIMO systems; access protocols; antenna arrays; diversity reception; packet radio networks; radio links; transmitting antennas; HSDPA; MIMO UMTS high speed downlink packet access; free-space experiments; high speed downlink packet access; multiple input multiple output; single input single output; space-time transmit diversity; sub-group rate control; transmit antennas;

fLanguage

English

Publisher

iet

Conference_Titel

DSPenabledRadio, 2005. The 2nd IEE/EURASIP Conference on (Ref. No. 2005/11086)

Conference_Location

IET

ISSN

0537-9989

Print_ISBN

0-86341-560-1

Type

conf

Filename

1575353