scholarly journals Renewable energy assisted traffic aware cellular base station energy cooperation

2021 ◽  
Author(s):  
Faran Ahmed ◽  
Muhammad Naeem ◽  
Waleed Ejaz ◽  
Muhammad Iqbal ◽  
Alagan Anpalagan ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Energy Cost ◽  
Cost Minimization ◽  
Renewable Energy Sources ◽  
Northern Region ◽  
Base Station ◽  
Base Stations ◽  
Solar Irradiation ◽  
Energy Sources ◽  
Energy Cooperation

With global concern for climate change, and for cutting down the energy cost, especially in off grid areas, use of renewable energy has been gaining widespread attention in many areas including cellular communication. The base station (BS) has emerged as a strong candidate for the integration of renewable energy sources (RES), particularly solar and wind. The incorporation of renewable energy opens many possibilities for energy conservation through strategies such as energy cooperation between BSs during the off-peak hours, when the energy harvested from renewable energy sources may become surplus. In this paper, we present the case for cellular BSs enabled with renewable energy sources (RES) to have an arrangement in which the BS provide surplus energy to a neighboring BS, thus minimizing the use of conventional energy. A realistic objective is developed for northern region of Pakistan, which entails modeling of solar panels and wind-turbine according to the average solar irradiation and wind speed of the region. We also model the dynamic load of the BS, which depicts temporal fluctuations with traffic variations. Based on these models we initiate an energy cooperation scheme between the BS in which an energy cost minimization framework is mathematically modeled and solved through the interior point method algorithm. Results are obtained for different times of the year for different number of base stations showing respective energy cost savings. Keywords: Base station Cooperation; alternate energy; cellular networks

scholarly journals Renewable energy assisted traffic aware cellular base station energy cooperation

2021 ◽  
Author(s):  
Faran Ahmed ◽  
Muhammad Naeem ◽  
Waleed Ejaz ◽  
Muhammad Iqbal ◽  
Alagan Anpalagan ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Energy Cost ◽  
Cost Minimization ◽  
Renewable Energy Sources ◽  
Northern Region ◽  
Base Station ◽  
Base Stations ◽  
Solar Irradiation ◽  
Energy Sources ◽  
Energy Cooperation

With global concern for climate change, and for cutting down the energy cost, especially in off grid areas, use of renewable energy has been gaining widespread attention in many areas including cellular communication. The base station (BS) has emerged as a strong candidate for the integration of renewable energy sources (RES), particularly solar and wind. The incorporation of renewable energy opens many possibilities for energy conservation through strategies such as energy cooperation between BSs during the off-peak hours, when the energy harvested from renewable energy sources may become surplus. In this paper, we present the case for cellular BSs enabled with renewable energy sources (RES) to have an arrangement in which the BS provide surplus energy to a neighboring BS, thus minimizing the use of conventional energy. A realistic objective is developed for northern region of Pakistan, which entails modeling of solar panels and wind-turbine according to the average solar irradiation and wind speed of the region. We also model the dynamic load of the BS, which depicts temporal fluctuations with traffic variations. Based on these models we initiate an energy cooperation scheme between the BS in which an energy cost minimization framework is mathematically modeled and solved through the interior point method algorithm. Results are obtained for different times of the year for different number of base stations showing respective energy cost savings. Keywords: Base station Cooperation; alternate energy; cellular networks

Renewable Energy Sources for Power Supply of Base Station Sites

2013 ◽  
Vol 9 (3) ◽  
pp. 53-74 ◽  
Author(s):  
Josip Lorincz ◽  
Ivana Bule
Keyword(s):  
Renewable Energy ◽  
Power Supply ◽  
Rural Areas ◽  
Renewable Energy Sources ◽  
Mobile Network ◽  
Base Station ◽  
Base Stations ◽  
Energy Sources ◽  
Research Activity ◽  
Electricity Grid

An overview of research activity in the area of powering base station sites by means of renewable energy sources is given. It is shown that mobile network operators express significant interest for powering remote base stations using renewable energy sources. This is because a significant percentage of remote base station sites on the global level are still diesel powered due to lack of connections to the electricity grid. Besides huge expenses that mobile operators pay for diesel fuel and its transport to base station sites, it is pointed out that such base station sites represent major pollutants due to enormous green-house gas emissions. Since base stations are major consumers of cellular networks energy with significant contribution to operational expenditures, powering base stations sites using the energy of wind, sun, fuel cells or a combination gain mobile operators’ attention. It is shown that powering base station sites with such renewable energy sources can significantly reduce energy costs and improve the energy efficiency of the base station sites in rural areas. In addition, technical descriptions of the different power supply systems based on renewable sources with corresponding energy controllers for scheduling the flow of energy to power base station sites are discussed. According to the presented, hybrid systems which combine different renewable energy sources outperform those with only one energy source, and depend on the configuration of base stations installed on a particular site, such systems can offer autonomous functionality throughout the year.

A Game Theoretic Framework for Green HetNets Using D2D Traffic Offload and Renewable Energy Powered Base Stations

2017 ◽  
pp. 679-711
Author(s):  
Elias Yaacoub ◽  
Hakim Ghazzai ◽  
Mohamed-Slim Alouini
Keyword(s):  
Renewable Energy ◽  
Renewable Energy Sources ◽  
Nash Bargaining Solution ◽  
Base Station ◽  
Base Stations ◽  
Nash Bargaining ◽  
Bargaining Solution ◽  
Green Communications ◽  
Game Theoretic

This chapter investigates the interplay between cooperative device-to-device (D2D) communications and green communications in LTE heterogeneous networks (HetNets). Two game theoretic concepts are studied and analyzed in order to perform dynamic HetNet base station (BS) on/off switching. The first approach is a coalition-based method whereas the second is based on the Nash bargaining solution. Afterwards, a method for coupling the BS on/off switching approach with D2D collaborative communications is presented and shown to lead to increased energy efficiency. The savings are additionally increased when a portion of the small cell BSs in a HetNet are powered by renewable energy sources. Different utility functions, modeling the game theoretic framework governing the energy consumption balance between the cellular network and the mobile terminals (MTs), are proposed and compared, and their impact on MT quality of service (QoS) is analyzed.

scholarly journals Resource Scheduling and Energy Cooperation in HetNet with Cross-Layer Interference Constraints

2020 ◽  
Vol 2020 ◽  
pp. 1-16
Author(s):  
Fanrong Kong ◽  
Yan Huang
Keyword(s):  
Renewable Energy ◽  
Fossil Fuels ◽  
Average Energy ◽  
Base Station ◽  
Base Stations ◽  
Cross Layer ◽  
Basic Algorithm ◽  
Hybrid Energy ◽  
Energy Cooperation ◽  
User Data

Facing more and more severe global warming problems, renewable energy, as an alternative to traditional fossil fuels, is attracting more and more attentions due to its capability of reducing carbon emission. This paper considers two-tier HetNets with orthogonal frequency division multiple access (OFDMA), where the macro base station (MBS) is powered by power grid and small base stations (SBSs) have hybrid energy supplies. Through smart grid, SBSs can share their renewable energy with each other. We consider the problem of cross-layer interference caused by spectrum reuse, the burst of user data, and the randomness of renewable energy arrivals. Through energy cooperation, this paper investigates maximizing the time-average energy efficiency of SBSs. Based on user data queue and SBS energy queue, the optimal problem is decoupled into two subproblems by Lyapunov optimization: resource allocation subproblem and energy scheduling and energy cooperation subproblem. By solving two subproblems, the online solution to the optimization problem is obtained. Through theoretical analysis and simulations, both user data queues and energy queues have an upper bound, the network is stable, and the proposed algorithm performs better than the basic algorithm without energy cooperation.

Wind, Photovoltaic anD Mini-Hydro Hybrid Generation in Bolivia: A Case Study at a Mountainous Village

2005 ◽  
Vol 29 (3) ◽  
pp. 271-286 ◽  
Author(s):  
Tsutomu Dei ◽  
Kiyoshi Hirata ◽  
Izumi Ushiyama
Keyword(s):  
Renewable Energy ◽  
Energy Balance ◽  
Power Output ◽  
Renewable Energy Sources ◽  
Solar Irradiation ◽  
Energy Sources ◽  
Generation System ◽  
Hybrid Generation ◽  
Site Monitoring

This paper investigates the most feasible configuration for hybrid generation by indigenous renewable energy sources in Chachacomani village at 4,220 meters elevation in Bolivia. Site monitoring of wind, solar irradiation and the water level of the Jarma River was conducted for a year. The data enabled potential power output from Wind, PV and Micro Hydro generation system to be estimated. Energy balance calculations for different configuration of hybrid generation system were made. The results show that the three energy supplies would be complementary for integrated power.

Resource management in cellular base stations powered by renewable energy sources

2018 ◽  
Vol 112 ◽  
pp. 1-17 ◽  
Author(s):  
Faran Ahmed ◽  
Muhammad Naeem ◽  
Waleed Ejaz ◽  
Muhammad Iqbal ◽  
Alagan Anpalagan
Keyword(s):  
Renewable Energy ◽  
Resource Management ◽  
Renewable Energy Sources ◽  
Base Stations ◽  
Energy Sources

scholarly journals Fuzzy logic application in the evaluation of performance of a prototype vehicle powered from solar energy and water electrolysis process

2016 ◽  
Vol 5 (4) ◽  
pp. 176
Author(s):  
Marcos Dos Santos ◽  
Bruna Russo Bahiana ◽  
Marcone Freitas dos Reis ◽  
Ernesto Rademaker Martins ◽  
Fabrício da Costa Dias
Keyword(s):  
Fuzzy Logic ◽  
Renewable Energy ◽  
Fossil Fuels ◽  
New Technologies ◽  
Renewable Energy Sources ◽  
Water Electrolysis ◽  
Solar Irradiation ◽  
Energy Sources ◽  
Human Communication ◽  
Electrolysis Process

The purpose of this paper is to evaluate the performance of a prototype vehicle that uses a reversible fuel cell capable of producing and storing hydrogen and oxygen by breaking the water molecule - the electrolysis process, made possible with the use of solar panels. The vehicle shown only uses two main sources of energy: solar and hydrogen cells, both clean and renewable energy sources. Water is the only residue generated. The Fuzzy Logic was used in the establishment of linguistic variables and on the composition of inference rules based on power, solar panel area and solar irradiation. The Fuzzy Logic provides a method of translating verbal, vague, imprecise and qualitative expressions, common in human communication in numeric values. This enables the conversion of the human experience in a way understandable by computers. Thus, the technology made possible by the fuzzy approach has a practical value. In view of the severe environmental degradation in which the planet is going through and the scarcity of energy sources, especially fossil fuels, one of the great challenges of the scientific community is to develop new technologies that use clean and renewable energy sources, that are economically viable and promote sustainable technologies and processes.

scholarly journals Research Survey on Various MPPT Performance Issues to Improve the Solar PV System Efficiency

2016 ◽  
Vol 2016 ◽  
pp. 1-20 ◽  
Author(s):  
B. Pakkiraiah ◽  
G. Durga Sukumar
Keyword(s):  
Renewable Energy ◽  
Renewable Energy Sources ◽  
Electrical Energy ◽  
Solar Irradiation ◽  
Energy Sources ◽  
Maximum Output ◽  
Solar Pv ◽  
Pv System ◽  
Pv Panel ◽  
Solar Pv System

Nowadays in order to meet the increase in power demands and to reduce the global warming, renewable energy sources based system is used. Out of the various renewable energy sources, solar energy is the main alternative. But, compared to other sources, the solar panel system converts only 30–40% of solar irradiation into electrical energy. In order to get maximum output from a PV panel system, an extensive research has been underway for long time so as to access the performance of PV system and to investigate the various issues related to the use of solar PV system effectively. This paper therefore presents different types of PV panel systems, maximum power point tracking control algorithms, power electronic converters usage with control aspects, various controllers, filters to reduce harmonic content, and usage of battery system for PV system. Attempts have been made to highlight the current and future issues involved in the development of PV system with improved performance. A list of 185 research publications on this is appended for reference.

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