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MIMO systems have become an indispensable part of modern wireless standards, e.g. LTE advanced. However, in applications with strict energy and size constraints, an alternative MIMO scheme with reduced hardware complexity would be attractive. Towards this direction, parasitic antennas with a single feeding port have been proposed to emulate MIMO transmission with PSK signaling. In order to support...
Energy efficiency emerges as a big concern in wireless sensor networks, where the lifetime of the system depends heavily on energy consumption. In a sensor network, the energy is consumed both by the circuit and the radio link. The radio link performance can be improved by using spatial multiplexing, but the conventional way of spatial multiplexing requires large antenna space and consumes more energy...
Single RF MIMO communication emerges a novel low cost communication method which does not consume as much power as the conventional MIMO. The implementation of such single RF MIMO system is done by mapping the weighting factors to the polarizations or the radiation patterns of the antennas. In order to have such performance, an antenna with rich pattern modes is required by the system, thus the ESPAR...
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