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mac protocol access contention resolution cognitive radio throughput maximization spectrum sensing cognitive radio cognitive radio networks optimal sensing multi-hop ergodic capacity ofdm transmission probability density function decode and forward cognitive ad hoc network fair resource allocation. channel assignment antenna correlation cognitive radio networks m-orthogonal matching pursuit cognitive radio analog-to-information converter basic gradien media access protocol optimization senso mac protocol algorithm np-hard problem a fd sensing half-duplex fd cognitive mac full-duplex and sensing set opti- mization. cooperative spectrum sensing noise estimation. eigenvalue-based spectrum sensing spectrum sensing techniques spiked population model random matrix theory subspace pursuit algorithm wide-band spectrum sensing power spectrum density estimate. compressed sensing cognitive radio. cr networks pu protection cognitive radi