Research Article | OPEN ACCESS
Modeling of Energy Efficiency in Heterogeneous Network
1, 2, 3Ayad Atiyah Abdulkafi, 1S.K. Tiong, 2David Chieng, 2Alvin Ting, 2Abdulaziz M. Ghaleb and 1J. Koh
1Power Engineering Center, Universiti Tenaga Nasional, Malaysia
2Wireless Communication Cluster, MIMOS Berhad, Malaysia
3College of Engineering, Tikrit University, Iraq
Research Journal of Applied Sciences, Engineering and Technology 2013 17:3193-3201
Received: January 14, 2013 | Accepted: February 07, 2013 | Published: September 20, 2013
Abstract
Cellular networks are undergoing transformation from conventional homogeneous macro Base Stations (BSs) to Heterogeneous Network (HetNet). This new paradigm not only offers a significant improvement in the overall network capacity or user data rate; it also promises an improvement in the overall network Energy Efficiency (EE). In this study, a theoretical model for evaluating the EE in HetNet is developed. A HetNet generally consists of different types of Base Stations (BSs) which operate in harmony towards a set of common goals defined by the network operator such as coverage and capacity improvement. Each BS may differ in terms of transmit power, achievable data rate, coverage, BS density and EE, under different network deployment scenarios. The results show that the picocell strongly impacts the Energy Efficiency (EE) of the HetNet as compared to microcell. More specifically it is observed that certain ratios of microcells and picocells per macro BS will result in sub-optimal of Area Energy Efficiency (AEE). It is shown that the AEE of HetNet also increases as the percentage area of macro BS overlaid by smaller cells and the density of micro/picocells increases.
Keywords:
Energy efficiency, HetNet, LTE,
Competing interests
The authors have no competing interests.
Open Access Policy
This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
Copyright
The authors have no competing interests.
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ISSN (Online): 2040-7467
ISSN (Print): 2040-7459 |
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