Novel cell selection algorithm for improving average user's effective data rate in LTE HetNets

Abstract

Cell selection algorithms are considered one of crucial features in LTE-Heterogeneous Networks (HetNets). Due to different downlink transmit power levels and randomness deployment of femtocells, achieving better user throughput and reducing the necessity of dynamic load balancing techniques require appropriate algorithms for selecting optimum serving cell. In this work, a new cell selection algorithm is proposed to enable new user to select best serving cell that achieves maximum effective achievable data rate. A new prediction algorithm is de signed within the new proposed cell selection algorithm to predict the performance of Proportional Fair (PF) scheduling algorithm without running it after every Resource Block (RE), to calculate the expected degradation in theoretical new user's achievable data. The numerical results show that the new cell selection proposed algorithm achieves higher average cell throughput than conventional cell selection methods and maintains better balanced load between different adjacent cells.

Cooperative resource management and power allocation for multiuser OFDMA networks

“…The simulated network includes seven adjacent hexagonal LTE/LTE-A cells, with a 5 MHz operating bandwidth. Since the total 6: end for 7: Every T TTIs: 8: Cell i sends Stop messages to its neighbors 9:…”

“…However, the spectral efficiency is reduced, since only 1/N of the available spectrum is used in each cell. The frequency reuse-1 model [6] increases spectral efficiency and network capacity due to dense usage of the available RBs in the network. However, ICI problems have a negative impact on UE throughput, especially for UEs located at the edge of the cell.…”

Traffic load–based cell selection for APCO25 conventional–based professional mobile radio

“…This model analyzes the possibility to exploit load balancing among BSs depending on backhaul capacity utilization. In [4], so as to select the best-serving BS while achieving the highest achievable data rate, a cell selection algorithm has been implemented by utilizing a proportional fair scheduling algorithm. In [5], cell selection criteria based on Reference Signal Received Power (RSRP), Reference Signal Received Quality, and RSRP with offset have been examined.…”

Load based cell selection algorithm for Tetra based professional mobile radio

“…Cell selection is the process of deciding the BS to provide services to the mobile users. In [2], a novel cell selection algorithm has been performed by utilizing a mathematical model of proportional fair scheduling algorithm to assist a new user to select the best serving cell by achieving maximum achievable data rate. In [3], in order to achieve proportional fairness for all users, a cell selection has been formulated into a network-wide utility maximization problem.…”