Access Policy Design for Cognitive Secondary Users Under a Primary Type-I HARQ Process
Access Policy Design for Cognitive Secondary Users Under a Primary Type-I HARQ Process
In this paper, an underlay cognitive radio network that consists of an arbitrary number of secondary users (SU) is considered in which the primary user (PU) employs type-I hybrid automatic repeat request (HARQ). Exploiting the redundancy in PU retransmissions, each SU receiver applies forward interference cancelation to remove a successfully …