… However, cognitive relay aided CRNs cannot obtain a maximal sum rate, when the existing
… present an enhanced sum rate in the cluster based cognitive radio relay network utilizing a …

… relaying cognitive radio-orthogonal multiple access system to compare the secrecy sum-rate …
None of the cooperative relaying networks described above considered secrecy sum-…

… This article investigates a cognitive two-way relay network where a pair of secondary
transceivers, SU − TX1 and SU − TX2, exchange their information via L energy-constrained …

… relay selection and power allocation for network sum-rate … -harvesting NOMA multicast
cognitive radio networks. Particularly, … relay, and then select the relay that maximizes the network …

… CONCLUSIONS In this paper, network sum-rate maximization via joint relay selection, …
studied in NOMA-based multicast cognitive radio networks with SWIPT-enabled relays. Due to the …

… term “cognitive” is named to indicate that the relay node knows … been often used for spectrum
sharing in the cognitive radio [13]–[15]. … , the relay network and the heterogeneous network. …

… We analyze relay selection for an underlay cognitive radio (CR) two-way relay network (TWRN…
to maximize the sum rate of a CR TWRN with multiple relays through relay selection under …

… network shares spectrum with a secondary network without the need for new spectrum
allocation [16]–[19]. In particular, we consider a cognitive radio… primary wireless communication. …

… Hu, and CW Sung, “Diamond relay network under Rayleigh … for relay-aided multiuser
multiantenna cognitive radio (CR) … Moreover, we derive an upper bound for the sum rate to assist …

… To demonstrate that the (PT,PR) pairs are motivated to participate in the proposed algorithm,
we set the minimum sum-rate requirement of each (PT,PR) pair to be the sumrate of the …