There is increasing interest in the exploitation of multiple-input and multiple-output (MIMO) channels to enhance the capacity of wireless systems.
In this study, we develop and evaluate a channel model, evaluate the corresponding channel capacity, and design and analyze a simple orthogonal transmit waveform for MIMO channels in mobile radio environments.
We also evaluate the system performance of various interference cancellation techniques when employing multiple-receive antenna in interference-limited systems.
The first part of this dissertation presents two major contributions to MIMO systems.
The analytical expression for space-time MIMO channel correlation is derived for a Rayleigh fading channel. The information-theoretic channel capacity based on this correlation is also evaluated for a wide variety of mobile radio channels.
The second part of this dissertation presents two major contributions to the area of orthogonal waveform design. We analyze the bit-error-rate (BER) performance of a proposed space-time orthogonal waveform for MIMO mobile radio communications.
The application of the proposed space-time orthogonal waveform to a conventional cellular system is also evaluated and briefly discussed.
Finally, this dissertation investigates a number of interference cancellation techniques for multiple-receive antenna systems. Both adaptive beamforming and multiuser detection are evaluated for various signal waveforms over a variety of mobile radio channels. / Ph. D.
| Identifer | oai:union.ndltd.org:VTETD/oai:vtechworks.lib.vt.edu:10919/27509 |
| Date | 03 May 2002 |
| Creators | Tsai, Jiann-An |
| Contributors | Electrical and Computer Engineering, Woerner, Brian D., Stutzman, Warren L., Shaw, John Kenneth, Reed, Jeffrey H., Buehrer, R. Michael |
| Publisher | Virginia Tech |
| Source Sets | Virginia Tech Theses and Dissertation |
| Detected Language | English |
| Type | Dissertation |
| Format | application/pdf |
| Rights | In Copyright, http://rightsstatements.org/vocab/InC/1.0/ |
| Relation | Tsai_dissert_final.pdf |
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