The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
This paper proposes a simple formulation for computing the full cross-covariance of multi-user multi-antenna multipath propagation channels where the multipath characteristics observed at two adjacent radios are correlated. The technique is applied to the case of key establishment based on reciprocal electromagnetic propagation to demonstrate the impact of a proximate eavesdropper on the key rate...
Keys for symmetric encryption can be established by generating key bits from the mutually-observed randomness present within estimates of a reciprocal wireless channel. We consider this approach for key establishment in multiple-input multiple-output (MIMO) systems and provide a channel estimation strategy that increases the key rate, or the mutual information between the channel estimates at the...
Over-the-air testing (OTA) of wireless devices in realistic but repeatable environments is typically performed using either an expensive multi-antenna OTA chamber that provides a high level of multipath control or a low-cost mode-stirred reverberation chamber that offers limited multipath control. We introduce a reconfigurable OTA chamber whose walls are lined with antennas, a few of which may be...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.