Optimal spectrum sensing time considering spectrum handoff due to false alarm in cognitive radio networks

摘要

In cognitive radio networks, a false alarm event in spectrum sensing in a frequency channel causes the secondary user currently using the frequency channel to execute spectrum handoff to another channel. Although determination of optimal spectrum sensing time has been studied, there has been few research addressing the optimal sensing time considering spectrum handoff. In this study, we formulate an optimization problem which considers the spectrum handoff due to false alarm of spectrum sensing and find the optimum spectrum sensing times related.