Improving LTE Femtocell Base Station Network Performance by Distributed Power Control

Joint Power Control, Base Station Assignment, and Channel Assignment in Cognitive Femtocell Networks

1Graduate School of Natural Sciences, Department of Computer Science, Inje University, Obang-dong, Gimhae, Gyeongnam 621-749, South Korea 2Department of Applied Mathematics, National University of Mongolia, Baga toiruu, Sukhbaatar district, Ulaanbaatar, 210646, Mongolia 3Graduate School of Engineering, Department of Information and Communications Engineering, Inje University, Obang-dong, Gimhae...

Base station antenna selection for LTE networks

Improving Energy Efficiency of Two-tier OFDMA Femtocell Networks with Distributed Power Control

This paper addresses how to improve the energy efficiency of two-tier OFDMA femtocell networks using power control. Firstly, the energy efficiencies of two typical power control methods are analyzed, including fixed power setting (FPS) and minimum power consumption (MPC) methods. Then a distributed maximum energy efficiency (MEE) method is proposed. Each macrocell and femtocell dynamically adju...

Improving Energy Efficiency of Femtocell Network LTE Architecture with Energy and Congestion Server (HeNB-ECS)

Femtocells are small base stations designed for use as an ideal solution to ensure good radio coverage in the residential and corporate environments. In this paper we review LTE femtocell, LTE HeNB standard architecture and we detail our proposed architecture. It focuses more particularly on the options offered by the HeNB Energy Congestion Server (HeNB-ECS), the proposed server in our solution...

Adaptive Base Station Switching Based on Feedback Control in Two-tier Femtocell Networks

Dynamic switching base station (BS) to improve the utilization is very important for reducing the energy consumption. Most of existing dynamic switching BS schemes require the switching threshold to be set in advance. The fixed switching threshold, however, fails to apply in practical two-tier femtocell networks, for it is difficult to precisely model that it may result in different switching o...