NDLI: Experimental Evaluation of Eigenvector Beamforming Method with 8X4 MIMO-OFDM Testbed

Content Provider	IEEE Xplore Digital Library
Author	Kudo, R. Nishimori, K. Takatori, Y. Tsunekawa, K.
Copyright Year	2006
Description	Author affiliation: NTT Network Innovation Lab., NTT Corp., Tokyo (Kudo, R.; Nishimori, K.; Takatori, Y.; Tsunekawa, K.)
Abstract	Multiple input multiple output (MIMO) systems increase the channel capacity within the limited frequency band. MIMO techniques can be combined with orthogonal frequency division multiplexing (OFDM), which is known to combat frequency selectivity in wireless channels. When channel state information (CSI) is available at the transmitter, the eigenvector beamforming method is well known to achieve the maximum channel capacity. However, the performance of eigenvector beamforming, which employs both modulation and forward error correction schemes, is not very well understood. In this paper, we evaluate the channel capacity and the frequency utilization of an eigenvector beamforming method in an actual indoor environment using an 8times4 MIMO-OFDM testbed that we developed. The experiment results indicate that the transmission bit rate increases offered by the eigenvector beamforming method in 4times4 MIMO and 8times4 MIMO channels are 3.83 fold and 4.90 fold larger than the performance of conventional transmission in SISO channel respectively and these ratios are larger than the increases in the channel capacity
Starting Page	2216
Ending Page	2220
File Size	3111727
Page Count	5
File Format	PDF
ISBN	0780393910
ISSN	15502252
DOI	10.1109/VETECS.2006.1683250
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-05-07
Publisher Place	Australia
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Array signal processing Testing MIMO Channel capacity Channel state information Transmitters OFDM modulation Optical modulation Forward error correction Indoor environments Indoor environment Beamforming OFDM Eigenvector frequency utilization
Content Type	Text
Resource Type	Article
Subject	Applied Mathematics Electrical and Electronic Engineering Computer Science Applications

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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