… analyze the secondary system outage performance when the network deployment is changing.
In practical deployment for cognitive two-way relaying with opportunistic relay selection, …

… Then, for the new exact outage probability analysis for relay selection we need to find the
CDF and PDF of the end-to-end per hop SNR. Firstly, we set urn:x-wiley:17518628:media:…

… relay (TWDR), and then propose a new TWDR selection … on the outage performance
analysis of the relay selection … Based on an approximate analysis of the outage performance …

… For simplicity of analysis, we set Pj = P (j = 1, 2, ..., M). From (7), we conclude that the relay
selection … received signal-to-interference ratios (SIR) at the selected relay and D are given by …

… as a function of the number of relays. In the case that ρ ≈ 0, however, we observe that
using more relays reduces the outage capacity following the well-known selection gain term …

… in [49], where we analyzed secrecy performance of multiple-relay assisted NOMA systems
over … secrecy outage performance of cooperative NOMA systems with relay selection schemes …

… This paper has proposed an outage analysis framework for the ORS in UCCNs under … , and
both peak transmit power constraint and primary outage constraint. First, the power allocation …

… in terms of outage probability. An approximate outage analysis of SC in the low to medium
SNR region can be found in [7]; other works on relay selection algorithms include [8]- [10]. …

… OUTAGE PROBABILITY ANALYSIS This section provides derivative analysis of the closed-form
expressions of the SINR outage … As U1 and U2 use selection combining (SC) to combine …

… Furthermore, we propose two relay selection schemes, ie, single relay selection and … two
relay selection schemes. For the two relay selection schemes, we will give selection criteria and …