Link Level Resource Allocation Strategies for Green Communications in LTE-Advanced

2017 ◽  
pp. 129-144
Author(s):  
Prashant Kallappa Wali ◽  
Amudheesan Aadhithan N ◽  
Debabrata Das
Keyword(s):  
Energy Efficiency ◽  
Energy Consumption ◽  
Cellular Networks ◽  
Research Area ◽  
Green Communications ◽  
System Architectures ◽  
Lte Advanced ◽  
A Cell ◽  
New Research

Mobile operators are showing a growing concern for energy efficiency in cellular networks in the recent past not only to maintain profitability, but also to tackle the overall environment effects. Such a trend is motivating the standardization bodies, network operators and researchers to aggressively explore techniques to reduce the energy consumption in the network. This trend has stimulated the interest of researchers in an innovative new research area called green cellular networks which is a vast research discipline that needs to cover all the layers of the protocol stack and various system architectures. Since Long Term Evolution-Advanced (LTE-A), which promises better support to richer applications, is fast emerging as the next generation cellular network standard and expected to aggravate the energy consumption problem, various techniques have been proposed and researched to improve its energy efficiency. This chapter discusses three link level techniques that attempt to reduce the energy consumption of a LTE-A cell with intelligent MAC layer algorithms.

scholarly journals Towards A Sustainable Green Design for Next-Generation Networks

2021 ◽  
Author(s):  
Isiaka Ajewale Alimi ◽  
Romilkumar K. Patel ◽  
Akeem O. Mufutau ◽  
Nelson J. Muga ◽  
Armando N. Pinto ◽  
...  
Keyword(s):  
Energy Efficiency ◽  
Wireless Networks ◽  
Energy Consumption ◽  
Energy Demand ◽  
Renewable Energy Sources ◽  
Carbon Dioxide Emission ◽  
Green Energy ◽  
Green Communications ◽  
Resource Allocation Algorithm ◽  
Allocation Algorithm

Abstract The evolution in the Information and Communications Technologies industry results in excessive energy consumption and carbon dioxide emission in the wireless networks. In this context, energy efficiency in mobile networks has been attracting considerable attention as green communications and operational expenditures reduction depend on it. Although the Internet of Things is to be supported by devices that are low-energy consuming, the power consumption of the huge number to be connected for several applications and services demand significant attention. To offer insights into green communications, this paper reviews various energy efficiency improvement techniques. Also, we consider a hybrid model in which the main grid power and dynamically harvested green energy from renewable energy sources can be leveraged to support the energy demand of the radio access network. In this regard, we reformulate the energy consumption model and consider an energy-efficient power allocation algorithm for green energy optimization. Numerical results show that with resource allocation algorithm exploitation, the energy efficiency can be enhanced. Besides, the amount of the grid energy consumption can be considerably minimized, resulting in the greenhouse gas emissions reduction in the wireless networks.

scholarly journals Energy efficiency, resilience to future climates and long-term sustainability: the role of the built environment

2010 ◽  
Vol 368 (1914) ◽  
pp. 1083-1089 ◽  
Author(s):  
M. J. Kelly
Keyword(s):  
Climate Change ◽  
Energy Efficiency ◽  
Energy Consumption ◽  
Built Environment ◽  
Energy Security ◽  
Sustainable Consumption ◽  
Existing Buildings ◽  
The Uk

Just under half of all energy consumption in the UK today takes place indoors, and over a quarter within our homes. The challenges associated with energy security, climate change and sustainable consumption will be overcome or lost in our existing buildings. A background analysis, and the scale of the engineering challenge for the next three to four decades, is described in this paper.

Effects of Energy Prices on Energy Efficiency in China

2014 ◽  
Vol 962-965 ◽  
pp. 1767-1772
Author(s):  
Zun Ming Ren
Keyword(s):  
Energy Efficiency ◽  
Energy Consumption ◽  
Industrial Structure ◽  
Time Series Data ◽  
Series Data ◽  
Energy Prices ◽  
Electricity Prices ◽  
Consumption Structure ◽  
Integration Test

The paper utilized the co-integration test, error correction model and Granger causality test, and other methods to verify the influence of the coal, oil and electricity prices, industrial and energy consumption structures on China's energy efficiency based on time-series data from 1979 to 2010. Test results show that: there is long-term equilibrium relationship of the energy prices, industrial structure, energy consumption structure and energy efficiency; coal prices, industrial structure and energy consumption structure are the Granger reasons of energy efficiency both in the short and long run; while the oil and electricity prices only constitute the long-term Granger reasons of energy efficiency. Finally, it analyzed the implications of policies of the empirical results and provided some constructive suggestions.

scholarly journals Data Storage Energy Efficiency in the Zettabyte Era

2020 ◽  
Vol 2 (3) ◽  
pp. 22
Author(s):  
Peter Hormann ◽  
Leith Campbell
Keyword(s):  
Energy Efficiency ◽  
Energy Consumption ◽  
Data Storage ◽  
Data Archiving ◽  
Future Value ◽  
Widespread Availability ◽  
Business As Usual ◽  
Data Centres ◽  
Broad Energy

Data storage has become an increasingly significant issue with the widespread availability of cheap storage technology and the development of global data centres for cloud storage. This paper reports a study of energy consumption for data storage in data centres. Unlike previous estimates, which have been extrapolations of broad energy usage within the data centre, we take a bottom-up approach. Firstly, we describe the technologies that can be used for data storage. Then we build up a model of energy consumption in data centres based on tiers of data storage. Based on published forecasts of data storage growth and assumptions about improving energy efficiency in technology and data centres, we then estimate the energy consumption for data storage in data centres in 2020. We show that energy consumption will rise substantially if a “business as usual” approach is adopted. We further show that the growth in energy consumption can be mitigated somewhat by adopting a more aggressive policy of data archiving on long-term, low-energy, “cold” storage; or more ideally purging data of little or no future value. This, however, would require a change in the popular assumption that data will be available readily online and forever.

Long-Term Assessment Methodology of Building Stock Thermal Energy Consumption

2021 ◽  
Author(s):  
◽  
Aleksejs Prozuments
Keyword(s):  
Energy Efficiency ◽  
Energy Consumption ◽  
Thermal Energy ◽  
Energy Use ◽  
Energy Savings ◽  
Building Code ◽  
Space Heating ◽  
Industrial Building ◽  
Building Stock

Energy efficiency in the building stock is a substantial contributor to infrastructure sustainability. In Latvia, buildings’ thermal energy use for space heating accounts for 80 % of total building energy use in the cold season. Therefore, reducing thermal energy consumption for space heating needs through the implementation of energy efficiency measures, enforcement of local building codes and regulations can ultimately lead to cost savings for building owners and stakeholders. The present PhD Thesis introduces a methodology for evaluation of thermal energy saving potential in the long run across residential, public, and industrial building stock under various thermal energy consumption compliance scenarios. These scenarios were developed based on three different building code protocols with a 10-year forecast analysis. Evaluation of the proposed building code implementation practices and their feasibility in Latvian building stock is discussed for these buildings with regards to their long-term thermal energy savings potential.

scholarly journals Comprehensive Optimization of Energy Consumption and Delay Performance for Green Communication in Internet of Things

2017 ◽  
Vol 2017 ◽  
pp. 1-17 ◽  
Author(s):  
Jiaze Wang ◽  
Chunhua Hu ◽  
Anfeng Liu
Keyword(s):  
Energy Efficiency ◽  
Energy Consumption ◽  
Internet Of Things ◽  
Duty Cycle ◽  
Routing Algorithm ◽  
Operating Mode ◽  
Sensor Nodes ◽  
Green Communications ◽  
Green Communication ◽  
Long Lifetime

Energy efficiency as well as fast data transmission is vital to green communications-based applications for Internet of Things (IoT). Wireless sensors, which constitute one of the important parts of IoT, adopt duty cycle operating mode to save energy. Although duty cycle operating mode will decrease the energy consumption of sensor nodes, it leads to a larger communication delay. In this paper, a utility-based adaptive duty cycle (UADC) routing algorithm is proposed to increase energy efficiency, reduce transmission delay, and keep long lifetime at the same time. First, UADC routing algorithm adopts a comprehensive performance evaluation function to evaluate the utility of choosing different relay nodes. Then it selects the node which maximizes the utility of the system to perform data relay. The utility function synthesizes comprehensive indexes like the reliability, energy consumption, and delay of the node. UADC routing algorithm adopts a high-duty cycle operating mode in the areas which have more remaining energy to decrease the delay. And a low-duty cycle operating mode in the energy-strained areas is adopted to ensure a long lifetime. The simulation results also prove the significant performances of our proposed algorithms.

Evaluating Energy Efficiency of Production Machine

2019 ◽  
Vol 889 ◽  
pp. 580-587
Author(s):  
Thi Ai Lanh Nguyen ◽  
Le Nhat Hoang Tran ◽  
Henri Paris ◽  
Mathieu Museau
Keyword(s):  
Energy Efficiency ◽  
Energy Consumption ◽  
Manufacturing System ◽  
Sustainable Manufacturing ◽  
Energy Costs ◽  
Environment Impact ◽  
Manufactured Products ◽  
Energy Efficiency Evaluation ◽  
World Industry

Industry is one of the most important energy consumption sectors. In the world, industry sector accounts for almost a third of energy consumption (28.3%, in 2012) [1]. According to the U.S. Department of Commerce: “Sustainable manufacturing is the creation of manufactured products through economically-sound processes that minimize negative environmental impacts while conserving energy and natural resources”. Nowadays, due to different environmental issues: the deficit of energy resources, the growing concern of the carbon emission, the environment impact... the awareness of energy consumption takes its important in manufacturing industries. In a manufacturing system, production machine is one of the basis energy consumed devices. In order to achieve the long-term goal "sustainable manufacturing", it is necessary then to take into account the energy efficiency of production machine [2]. In fact, increasing energy efficiency of production machine allows to reduce not only energy costs but also the overall environmental impact. Energy efficiency evaluation of production machine is therefore one of the prerequisites for energy saving in manufacturing [3]. In order to support designers during the design phase of the next production machine generation, in this paper, the principal objective is to propose a method to evaluate energy efficiency of a production machine.

scholarly journals Survey of Green Radio Communications Networks: Techniques and Recent Advances

2013 ◽  
Vol 2013 ◽  
pp. 1-13 ◽  
Author(s):  
Mohammed H. Alsharif ◽  
Rosdiadee Nordin ◽  
Mahamod Ismail
Keyword(s):  
Energy Efficiency ◽  
Energy Consumption ◽  
Cellular Networks ◽  
Multiple Input Multiple Output ◽  
Primary Energy ◽  
Base Station ◽  
Radio Communications ◽  
Improve Energy Efficiency ◽  
Advantages And Disadvantages ◽  
Green Radio

Energy efficiency in cellular networks has received significant attention from both academia and industry because of the importance of reducing the operational expenditures and maintaining the profitability of cellular networks, in addition to making these networks “greener.” Because the base station is the primary energy consumer in the network, efforts have been made to study base station energy consumption and to find ways to improve energy efficiency. In this paper, we present a brief review of the techniques that have been used recently to improve energy efficiency, such as energy-efficient power amplifier techniques, time-domain techniques, cell switching, management of the physical layer through multiple-input multiple-output (MIMO) management, heterogeneous network architectures based on Micro-Pico-Femtocells, cell zooming, and relay techniques. In addition, this paper discusses the advantages and disadvantages of each technique to contribute to a better understanding of each of the techniques and thereby offer clear insights to researchers about how to choose the best ways to reduce energy consumption in future green radio networks.

ICTs for Business Enterprise Mobility

2010 ◽  
pp. 1-18
Author(s):  
Per Andersson ◽  
Susanne Sweet ◽  
Christopher Rosenqvist
Keyword(s):  
Wireless Communication ◽  
Customer Value ◽  
Research Area ◽  
Research Field ◽  
Business Enterprise ◽  
Research Programs ◽  
Advance Research ◽  
Conceptual Discussion ◽  
New Research

This chapter puts focus on and relates to three central concepts “sustainability”, “mobility”, and “customer value”. The results from two long-term lines of research and two research programs are combined in the chapter. The first focuses on the effects of the use of new wireless communication and information on organizations in terms of changed “mobility” of people and artifacts within and between organizations. The second research area addressed is that of social and environmental enterprise and business. The chapter has the aim and ambition to contribute to a conceptual discussion on sustainability, mobility, and value. Based on the discussion, the chapter presents a set of propositions to help advance research in this relatively new research field. Short empirical examples are presented, followed by a concluding discussion and a set of propositions for further research.

ICTs for Business Enterprise Mobility

2012 ◽  
pp. 1909-1926
Author(s):  
Per Andersson ◽  
Susanne Sweet ◽  
Christopher Rosenqvist
Keyword(s):  
Wireless Communication ◽  
Customer Value ◽  
Research Area ◽  
Research Field ◽  
Business Enterprise ◽  
Research Programs ◽  
Advance Research ◽  
Conceptual Discussion ◽  
New Research

This chapter puts focus on and relates to three central concepts “sustainability”, “mobility”, and “customer value”. The results from two long-term lines of research and two research programs are combined in the chapter. The first focuses on the effects of the use of new wireless communication and information on organizations in terms of changed “mobility” of people and artifacts within and between organizations. The second research area addressed is that of social and environmental enterprise and business. The chapter has the aim and ambition to contribute to a conceptual discussion on sustainability, mobility, and value. Based on the discussion, the chapter presents a set of propositions to help advance research in this relatively new research field. Short empirical examples are presented, followed by a concluding discussion and a set of propositions for further research.

Sign in / Sign up

Export Citation Format

Share Document