… Under imperfect channel state information (CSI), this article investigates joint optimization
of user selection, power allocation, and the number of activated base station (BS) antennas of …

… Therefore, in order to obtain the expected data rate of the considered system with imperfect
CSI, … Given the imperfect CSI and N ≫ 1 antennas, a numerical approximation of the mutual …

… to the total power being allocated to all users. Our problem formulation in this work is to
maximize EE using optimum user power allocation with imperfect CSI. The channel estimation …

… This is because in slow fading with CSI error, a channel outage occurs whenever the … a
robust power allocation scheme taking into account the effect of imperfect CSI for a selective …

In this paper, spectrum efficiency (SE) and energy efficiency (EE) performances of uplink
massive multiple-input multiple-output (MIMO) systems with continuous-rate adaptive …

… In this paper, we are concerned about the power allocation problem that … CSI at the receiver
side. Therefore, in this paper, we mainly focus on the case where the BS has imperfect CSI. …

… Moreover, in this paper, we consider imperfect CSI for the energy efficient resource allocation
problem and formulate it as a probability mixed non-convex optimization problem. The …

… with imperfect CSI [20], [21] or lacked research on the EE of massive MIMO CRNs [3], [4], [22]–
[25], in this paper, we study an energy-efficient joint power allocation … under imperfect CSI. …

… uncertain CSI distribution, we develop a distributionally robust resource allocation approach
… firstand second-order moments of uncertain CSI. For alleviating the conservatism of above …

… perfect CSI is challenging to obtain in practice, in this article, we consider imperfect CSI
and investigate the resource allocation including task assignment, offloading power allocation …