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Dynamic spectrum access has proposed tiering radios into two groups: Primary Users (PUs) and Secondary Users (SUs). PUs are assumed to have reserved spectrum available to them, while SUs (operating in overlay mode) must share whatever spectrum is available. The threat of emulation attacks, in which users pretend to be of a type they are not (either PU or SU) in order to gain unauthorized access to...
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.