HIGH COVERAGE RANGE AND ENERGY EFFICIENCY USING MACRO BSS AND DISTRIBUTED MICRO BSS IN HCN

Heterogeneous cellular networks (HCNs) can be implemented and configured based on the guidance of huge-volume user action. Huge-volume user action will follow inhomogeneous distribution in wireless network which brings enormous challenges to energy-ef iciency in HCN. In this paper, we study the energy efficiency (EE) in HCNs. A solution for the problem of this energy efficiency is formulated by configuring and deploying the base station. We also calculate density, transition power, BS static power and Quality of Service (QoS). For quantitative relationship we present many formulas that establish the energy-efficient HCN. These results can be used to determine energy efficiency using BS density and BS transmit power with the objective of achieving optimal. we also include control techniques micro BS sleep control, bandwidth expansion control and bandwidth shrinking control. Simulation results are shown to valuate our theoretical results and proposed control strategies can lead to significant energy efficiency