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AssigneesDrexel University, Politecnico Di Milano
InventorsDaniele Piazza, John Kountouriotis, Michele D'Amico, Kapil R. Dandekar
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A method allows reconfigurable multi-element antennas to select the antenna configuration in MIMO, SIMO and MISO communication system. This selection scheme uses spatial correlation, channel reciprocal condition number, delay spread and average Signal to Noise Ratio (SNR) information to select the antenna radiation pattern at the receiver. Using this approach, it is possible to achieve capacity gains in a multi-element reconfigurable antenna system without modifying the data frame of a conventional wireless communication system. The capacity gain achievable with this configuration selection approach is calculated through numerical simulations using reconfigurable circular patch antennas at the receiver of a MIMO system that employs minimum mean square error receivers for channel estimation. Channel capacity and Bit Error Rate (BER) results show the improvement offered relative to a conventional antenna selection technique for reconfigurable MIMO systems.
A method of selecting an antenna array configuration for a multi-element reconfigurable transmitter antenna and/or a multi-element reconfigurable receiver antenna in a transmission system, comprising the steps of:
A transmission system for transmitting data from a first location having a transmitter antenna and a transmitter processor to a second location having a receiver antenna and a receiver processor, each of said receiver antenna and said transmitter antenna comprising an array having multiple reconfigurable elements, wherein said receiver processor implements receiver selection software for selecting an antenna array configuration for said receiver antenna array, said receiver selection software, when implemented, causing said receiver processor to build receiver look-up tables for at least 1 of N antenna array configurations between said transmitter antenna and said receiver antenna, said receiver look up tables including antenna related parameters of discrimination between different wireless channel scenarios, to estimate from received signals from a transmitter antenna communicating with said receiver antenna values for said antenna related parameters for at least one but less than N antenna array configurations, to select a receiver look-up table based on a current antenna array configuration including the receiver antenna and transmitter antenna, and to set an updated antenna array configuration based at least in part on using said estimated values to select the updated antenna array configuration from the selected receiver look-up table, said updated antenna array configuration for the receiver antenna and/or the transmitter antenna being set independent of a transmission scheme or configuration adopted by another antenna in said transmission system.
Dependencies are inferred from the claim text.