Cognitive Access Policies under a Primary ARQ Process via Forward-Backward Interference Cancellation
Cognitive Access Policies under a Primary ARQ Process via Forward-Backward Interference Cancellation
This paper introduces a novel technique for access by a cognitive Secondary User (SU) using best-effort transmission to a spectrum with an incumbent Primary User (PU), which uses Type-I Hybrid ARQ. The technique leverages the primary ARQ protocol to perform Interference Cancellation (IC) at the SU receiver (SUrx). Two IC …