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In this paper, we propose an <italic/><sc>on/off</sc> reporting mechanism for cooperative sensing of cognitive radio so that reporting overhead from secondary sensing users to a fusion center can be significantly reduced. A key advantage of our scheme is robust and energy-efficient cooperative sensing over imperfect reporting channels. Furthermore, ON/OFF reporting enables graceful...
In this paper we investigate the fundamental performance limits of the cooperative sensing using energy detection by considering the unlimited number of sensing nodes. Although a lot of cognitive radio research so far proposed various uses of energy detection because of its simplicity, the performance limits of energy detection have not been well understood when a large number of sensing nodes exist...
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