Information theory, multipath channels, multiple-input multiple-output (MIMO) systems
Constructing the capacity bound of a multiple-input multiple-output wireless system is often performed by assuming specified antenna configurations and a propagation environment and determining the signaling strategy which maximizes throughput. This paper extends this approach to further determine the optimal antenna characteristics which maximize the capacity for the propagation scenario, with the resulting capacity bound representing the ultimate maximum achievable value if optimal antenna design and signaling are used. In this approach, the spatially-continuous transmit currents and receive fields are represented using eigenfunctions of appropriate operators. It is shown that, except under certain conditions where array supergain solutions emerge, the capacity remains bounded for finite transmit power. The approach also shows how to limit supergain effects using practical constraints. Model problems and numerical computations are provided for different power constraints at the transmitter and noise characteristics at the receiver.
Original Publication Citation
Jensen, M. A., and J. W. Wallace. "Capacity of the Continuous-Space Electromagnetic Channel." Antennas and Propagation, IEEE Transactions on 56.2 (28): 524-31
BYU ScholarsArchive Citation
Jensen, Michael A. and Wallace, Jon W., "Capacity of the continuous-space electromagnetic channel" (2008). Faculty Publications. 199.
Ira A. Fulton College of Engineering and Technology
Electrical and Computer Engineering
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