Abstract
Hidden terminal problem in spectrum sensing is one of the most challenging problems in cognitive radio network (CRN). To tackle this problem, we propose a novel Cooperative Interference Game scheme in this paper. The scheme adopted full duplex (FD) mode to sense over multiple sub-bands in an iterative manner without extra sensing devices. The implementation algorithm of the proposed scheme is consisted of three modules: the formulation of the maximum transmit power limitation of second user (SU); the self-interference cancellation coefficient; and the optimal location of SU for an optimized low collision probability. Monte Carlo simulation proved that compared with cooperative spectrum sensing, the proposed scheme significantly improves the performance of spectrum detection and mitigates hidden terminal problem to a large extent with less energy consumption.
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