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Prior work in implementing spectrum sharing scenarios for cognitive radio networks has relied on the unlikely assumption of full cross-channel knowledge made available to the cognitive transmitter (CT) and/or the target primary receiver (PR). However, estimation of this cross-channel knowledge is not only important from a practical stand-point, but also in(More)
Spectrum sensing plays a vital part in cognitive radio (CR) communication. In this paper, we consider a novel proactive sensing scheme that helps combat the hidden-node problem, while increasing certainty in the decision of spectrum occupancy. We extend this scheme by limiting the power of the probing signal used in carrying out proactive detection, with(More)
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