… of service of small-cell users, the maximum transmit power, … -based power allocation and
user association algorithm is proposed … and the impact of imperfect CSI error on user’s outage …

… and/or users know the perfect CSI, while in this paper we assume that all BSs and users
simultaneously have imperfect CSI knowledge. By considering the case of imperfect CSI, the …

… a joint user association and transmit power control in a multi-user … all users by optimizing
the IRS-user allocations. The nearest association (NA) method is proposed, where each user is …

… Subsequently, based on the derived optimal solution, we propose a low complexity algorithm
for the user association in the multi-user multi-BS scenario. Simulations demonstrate that …

… Furthermore, we investigate the effect of imperfect CSI and show our proposed method
outperforms the convex optimization user association scheme in the presence of noisy CSI. …

… the BS mode, MU association and beamforming with imperfect CSI simultaneously. In this
… , with the consideration of imperfect CSI. The imperfection in CSI between true and the …

… of power allocation and user association to maximize energy-… ’s methods and optimal user
association by the Lagrangian dual … , user selection, and precoding under imperfect CSI in …

… By maximizing the lower bound of ergodic SE, [13] presented the joint design of user
association and PA of massive-MIMO-enabled heterogeneous networks with channel estimation …

… imperfect CSI knowledge at the cloud caused by user mobility, we make use of the following
CSI … Let us denote the estimated CSI matrix by H ˆ k ∈ ℂ N × M L , ∀ k ∈ K and by h ˆ n q , …

… In [17], ergodic achievable rate for zero-forcing (ZF) was lower bounded by a closed-form
expression, and the authors designed a joint user association and power allocation scheme …