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Abstract-In cognitive radio networks, secondary users (SUs) face two conflicting objectives. Each SU seeks to minimize the sensing duration while maximizing the detection probability of primary users (PU) to avoid interfering with their transmissions. Both objectives have a substantial effect on energy efficiency. This paper investigates a noncooperative setting for selecting the sensing duration...
Sensing-throughput tradeoff under outage detection constraint has been studied before by assuming no uncertainty in estimation of the noise power, but this might not be the case in practice for an energy detector (ED). In this paper we examine analytically the effect of spectrum sensing on both the secondary user (SU) and the primary user (PU) throughputs under outage detection probability constraint...
The spectrum sensing duration and the secondary user's achievable throughput trade-off is optimized under outage constraints in a cooperative cognitive radio network over Nakagami fading conditions. The optimum trade-off depends not only on the maximum outage probability allowed by the primary user and the number of cognitive users involved in the sensing but also on the fading operational conditions...
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