… into cooperative NOMA networks to solve the imperfect CSI estimation and user selection
problems. It is worth mentioning that the above DL schemes for channel estimation are not …

… outage probability of a two-user CNOMA system under imperfect CSI. Compared to [21…
imperfect CSI proposed in [21] to multiple users scenarios, and discuss the user selection scheme …

… of user selection (US) on the outage probability performance. If the user selection scheme
is random selection, the … When the user selection scheme in Eq. (19) is adopted, the outage …

… information (CSI) at the base stations (BSs) is indispensable. In practice, however, obtaining
… CSI at the BSs is infeasible. In frequency division duplex (FDD) systems, imperfect CSI can …

… imperfect CSIs of the composite UAV-RIS-User channels. • For outdated and imperfect CSI
based RIS selection scheme, we derive an expression for the probability of selecting a set of …

… the STBC scheme, only user selection based on delayed CSI is … both user and antenna
selection, the effect of imperfect CSI on its … Although antenna selection based on delayed CSI are …

… For our considered cellular network, where the number of relays is much smaller than the
number of users due to cost and space constraints, the single relay selection scheme is close …

… Motivated by the aforementioned issues, this paper will discuss the BF and US
subproblems for both perfect and imperfect CSI scenarios. New low-complexity BF and US …

… We collect channel traces for over 28 different user locations and run 15,000 frame
transmissions. For each transmission and MCS selection scheme we measure the number of frames …

… In this section, antenna selection and resource allocation schemes are introduced to … an
antenna selection scheme to find the optimal number of antennas that the BS can use to obtain …