… 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 …

… 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 one-way relay networks, MRS …

… 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, …

… 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…

… Their performance can further be enhanced by the use of relay selection (RS). RS schemes
… combiner to propose a new output-threshold multiple-relay-selection (OT-MRS) scheme. …

… of relays is not sufficient. In this context, we propose and analyze two relay selection schemes
in which a subset of the relays is selected based on the channel gains from multiple relays …

… relay selection schemes in broadcast wireless networks using either selective digital relaying
or selective analog relaying… Then, one node among “reliable” nodes is activated as a relay. …

… , we consider three opportunistic relay selection schemes. The first scheme tries to reduce
the overheard information at the eavesdroppers by choosing the relay having the lowest …

… selection of relay in a time varying radio environment. This paper presents a comprehensive
survey of distributed relay selection schemes … classifications of relay selection schemes and …

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