… some existing single relay selection schemes and show their diversity orders. Then in
Section III, the idea of multiple relay selection is proposed and several suboptimal schemes are …

… user and relay selection schemes, respectively. In this paper, a downlink cooperative NOMA
network with two users and K relays is considered. We propose two optimal RS schemes, …

… In this section, we generalize the relay selection scheme from SRS to MRS; in other words,
more than one relay is allowed to participate in the second phase of the communication. For …

… -and-forward relays. We employ a max–max user-relay selection scheme to minimize the
outage probability of the system. Considering both variable and fixed gain relaying protocols, …

… and random relay selection schemes for cooperative communication system. Opportunistic
relaying techniques based on max-min relay selection, harmonic mean relay selection, …

… with the Nth best-relay selection scheme. In the best-relay selection scheme, from the set of
M relays the best relay only forwards the source signal to the destination. However, the best …

… scheme, the best potential relay gets selected according to its secrecy rate. We also study
the performance of the three relay selection schemes … rate of three selection schemes. These …

… For simplicity, we discuss the relay selection scheme for a single MU as it can be
generalized to mUltiple MUs directly. Consider an MU having a data buffer with size QB. For …

… relay networks, the selected relay nodes have great impact on the system performance. In this
paper, a multi-relay selection schemes … best cooperative relay nodes selection for signal-to…

… This work aims to design a relay UE selection strategy for D2D communications, which …
relay selection scheme that considers several criteria jointly, including end-to-end data rate, relay…