Title :
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
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;
Conference_Titel :
Smart Antennas, 2004. ITG Workshop on
Conference_Location :
Munich
Print_ISBN :
0-7803-8327-3
DOI :
10.1109/WSA.2004.1407679
