MEASURED MIMO CAPACITY ENHANCEMENT IN CORRELATED LOS INDOOR CHANNELS VIA OPTIMIZED ANTENNA SETUPS

Andreas Knopp, Mohamed Chouayakh, Robert Schwarz, Berthold Lankl

2006

Abstract

Our premise in this paper is to investigate the available channel capacity of MIMO systems in correlated transmission channels for various antenna arrangements differing in their suitability in order to construct high-rank LOS channels. Hence, a measurement campaign with a fast 5×5 - MIMO channelsounder was carried out in a typical, medium - scale, in - room office scenario giving the opportunity to virtually evaluate the channel capacities for arbitrary M × N - MIMO systems ({M, N } ≤ 5) by antenna selection and combination. We use linear antenna arrays and vary their initial antenna spacings and orientations relative to each other which coincides with LOS channels of varying rank. In the sequel the measured capacities are compared giving an idea on the usefulness of the high - rank LOS channel construction in the presence of strong reflections. For our purpose we introduce an appropriate power normalization of the channel transfer matrix to exclude further effects on the capacity, as for example SNR variations due to varying transmitter - receiver distances, and only concentrate on the phase angle relations within the matrix. The results show a measurable benefit in channel capacity when such optimization and normalization is performed, especially for small antenna numbers.

Paper Citation

in Harvard Style

Knopp A., Chouayakh M., Schwarz R. and Lankl B. (2006). MEASURED MIMO CAPACITY ENHANCEMENT IN CORRELATED LOS INDOOR CHANNELS VIA OPTIMIZED ANTENNA SETUPS . In Proceedings of the International Conference on Wireless Information Networks and Systems - Volume 1: WINSYS, (ICETE 2006) ISBN 978-972-8865-65-8, pages 187-193. DOI: 10.5220/0002091601870193

in Bibtex Style

@conference{winsys06,
author={Andreas Knopp and Mohamed Chouayakh and Robert Schwarz and Berthold Lankl},
title={MEASURED MIMO CAPACITY ENHANCEMENT IN CORRELATED LOS INDOOR CHANNELS VIA OPTIMIZED ANTENNA SETUPS},
booktitle={Proceedings of the International Conference on Wireless Information Networks and Systems - Volume 1: WINSYS, (ICETE 2006)},
year={2006},
pages={187-193},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0002091601870193},
isbn={978-972-8865-65-8},
}

in EndNote Style

TY - CONF
JO - Proceedings of the International Conference on Wireless Information Networks and Systems - Volume 1: WINSYS, (ICETE 2006)
TI - MEASURED MIMO CAPACITY ENHANCEMENT IN CORRELATED LOS INDOOR CHANNELS VIA OPTIMIZED ANTENNA SETUPS
SN - 978-972-8865-65-8
AU - Knopp A.
AU - Chouayakh M.
AU - Schwarz R.
AU - Lankl B.
PY - 2006
SP - 187
EP - 193
DO - 10.5220/0002091601870193