Realization of a spatially multiplexed MIMO system
2006 (English)In: EURASTP journal an applied signal processing, ISSN 1110-8657, Vol. 2006, 78349- p.Article in journal (Refereed) Published
Multi-antenna systems can provide improvements in wireless systems increasing spectral efficiency, reliability, range, and system capacity. Herein we show how some of the potentials of MIMO systems can be realized on a simple radio hardware platform by utilizing advanced real-time signal processing and coding. We present a real-time implementation of a 2 by 2 MIMO system employing spatial multiplexing to achieve high spectral efficiency in an indoor non-line-of-sight environment operating in the 1800 MHz range. Well-known processing and coding techniques are employed and our contributions lie in: discussing implementational aspects and solutions often overlooked but critical for high-performance operation; demonstrating the degree to which the simple baseband AWGN model can be used to accurately model/predict the MIMO system on the current hardware; and demonstrating the feasibility of real-time spatial multiplexing achieving up to 15 bps/Hz on a 2 by 2 system in a realistic indoor environment with off-the-shelf radio hardware.
Place, publisher, year, edition, pages
2006. Vol. 2006, 78349- p.
trellis-coded modulation, redundant signal sets
Telecommunications Communication Systems
IdentifiersURN: urn:nbn:se:kth:diva-16133DOI: 10.1155/asp/2006/78349ISI: 000242072400001ScopusID: 2-s2.0-33645747562OAI: oai:DiVA.org:kth-16133DiVA: diva2:334175
QC 20100525 QC 201111092010-08-052010-08-052012-01-13Bibliographically approved