Measurement System and Campaign for Characterizing the Theoretical Capacity and Cross-Correlation of Multiple-Input Multiple Output Indoor Wireless Channels
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Theoretical analyses have demonstrated a relationship between the theoretical capacity of multi-element array systems with the cross-correlation of spatially separated channels. Historical measurements have also shown that in the presence of Rayleigh fading, antenna spacing may be used to control the level of correlation between propagation channels and maximize the diversity gain, or potential system capacity of a space-time system. Both the design of the antenna arrays and characteristics of the propagation environment influence a systemâ s potential capacity.
This thesis describes the construction of a measurement system and the use of this system to evaluate the capacity gains of multi-element arrays in a wireless communication system. The presented system is capable of measuring the channel gains between a number of transmitter and receiver antenna elements and calculating both the cross-correlation between channel gains and the theoretical system capacity. After a discussion of previous research, the measurement system and subsequent measurement results are described.
- Masters Theses