Performance of antenna variable modulation for turbo MIMO transmission in frequency-selective channels

Author

Schneider, Christian ; GroBmann, M. ; Thomä, Reiner

Author_Institution

Electron. Meas. Res. Lab., Technische Hochschule Ilmenau

fYear

2004

fDate

18-19 March 2004

Firstpage

261

Lastpage

267

Abstract

In this contribution the robustness and reliability of a broadband single carrier MIMO transmission in significantly changing channels is under investigation. Real field measurement data is used to show the effectiveness and influence of the proposed MIMO link adaptation scheme, where for different transmit antennas variable signal modulations are considered. Furthermore the performance of two different concepts, the multilevel bit interleaved coded modulation (MLBICM) and the common BICM, for turbo MIMO Equalization with variable higher modulations is compared. It was found, that the temporal and spatial multipath structure is strongly influencing the robustness of the MIMO transmission. An adaptation of the signal modulation per antenna improves the reliability on the signal detection

Keywords

MIMO systems; adaptive antenna arrays; broadband networks; equalisers; interleaved codes; modulation coding; multipath channels; radio links; signal detection; space-time adaptive processing; transmitting antennas; turbo codes; MIMO link adaptation scheme; MLBICM; adaptive space-time signal transmission; antenna variable modulation; broadband single carrier transmission; field measurement data; frequency-selective channels; multilevel bit interleaved coded modulation; signal detection; transmit antennas; turbo MIMO equalization; Acoustic propagation; Adaptive arrays; Antenna measurements; Broadband antennas; Frequency; Interleaved codes; MIMO; Modulation coding; Robustness; Transmitting antennas;

fLanguage

English

Publisher

ieee

Conference_Titel

Smart Antennas, 2004. ITG Workshop on

Conference_Location

Munich

Print_ISBN

0-7803-8327-3

Type

conf

DOI

10.1109/WSA.2004.1407679

Filename

1407679