scholarly journals Flexible, Brain-Inspired Communication in Massive Wireless Networks

Sensors ◽  
2020 ◽  
Vol 20 (6) ◽  
pp. 1587 ◽  
Author(s):  
Bartosz Bossy ◽  
Pawel Kryszkiewicz ◽  
Hanna Bogucka
Keyword(s):  
Energy Efficiency ◽  
Power Consumption ◽  
Energy Efficient ◽  
Digital Communication ◽  
Digital Transmission ◽  
Point Of View ◽  
Transmission Scheme ◽  
Transmission Modes ◽  
New Perspective ◽  
Analog Transmission

In this paper, a new perspective of using flexible, brain-inspired, analog and digital wireless transmission in massive future networks, is presented. Inspired by the nervous impulses transmission mechanisms in the human brain which is highly energy efficient, we consider flexible, wireless analog and digital transmission on very short distances approached from the energy efficiency point of view. The energy efficiency metric is compared for the available transmission modes, taking the circuit power consumption model into account. In order to compare the considered systems, we assume that the transmitted data comes from analog sensors. In the case of the digital transmission scheme, the decoded data are converted back to analog form at the receiving side. Moreover, different power consumption models from the literature and the digital transmission schemes with different performance are analyzed in order to examine if, for some applications and for some channel conditions, the analog transmission can be the energy-efficient alternative of digital communication. The simulation results show that there exist some cases when the analog or simplified digital communication is more energy efficient than digital transmission with QAM modulation.

scholarly journals Comparative Analysis of V-Band and E-Band mmWaves for Green Backhaul Solutions for 5G Ultra-Dense Networks

2021 ◽  
pp. 115-124
Author(s):  
Ayodeji A. Ajani ◽  
◽  
Vitalice K. Oduol ◽  
Zachaeus K. Adeyemo ◽  
Ebude C. Awasume
Keyword(s):  
Energy Efficiency ◽  
Comparative Analysis ◽  
Power Consumption ◽  
Energy Efficient ◽  
Small Cells ◽  
Network Simulator ◽  
Form Complex ◽  
Dense Networks ◽  
Wireless Backhaul ◽  
V Band

5G Ultra-Dense Networks (UDNs) will involve massive deployment of small cells which in turn form complex backhaul network. This backhaul network must be energy efficient for the 5G UDN network to be green. V-band and E-band mmWave technologies are among the wireless backhaul solutions tipped for 5G UDN. In this paper, we have compared the performance of the two backhaul solutions to determine which is more energy efficient for 5G UDN. We first formulated the problem to minimize power, then proposed an algorithm to solve the problem. This was then simulated using Network simulator 3.The first scenario made use of V-band mmWave while thesecond was E-band mmWave. The performance metricsused were power consumption and energy efficiency againstthe normalized hourly traffic profile. The performances ofthe two solutions were compared. The results revealed thatE-band mmWave outperformed V-band mmWave inbackhauling traffic in 5G UDN. It can be concluded that E-band green backhaul solution is recommended over V-bandmmWave for 5G UDN.

scholarly journals Prospects for the implementation of real estate development in Ukraine based on energy efficiency principles and the problems with raising the finance required

2018 ◽  
pp. 5-15
Author(s):  
Lyudmila Swistun ◽  
Taina Zavora ◽  
Yuliia Khudolii
Keyword(s):  
Energy Efficiency ◽  
Real Estate ◽  
Energy Efficient ◽  
Energy Savings ◽  
Thermal Protection ◽  
Housing Stock ◽  
Real Estate Market ◽  
Point Of View ◽  
Real Estate Development ◽  
Residential Real Estate

The main goal of the study is to analyse the residential real estate market in Ukraine from the point of view of the need and the possibility of increasing its energy efficiency. Also, it aims to justify effective financial and credit mechanisms for ensuring measures to improve the thermal protection properties of residential and non- residential real estate, in particular by introducing energy efficiency development projects. With this research we investigated Ukraine's housing stock and utility tariffs and concluded that a beneficial strategy to be applied in Ukraine is the energy-efficient retrofit of real estate. This is one of the most effective ways to re-profile unclaimed real estate units in the existing state or to reconstruct inefficiently used buildings. Also, we reviewed selected methods of energy efficient residential real estate development and mechanisms of financing energy- efficient renovation of real estate used in the EU. And, in our view, the next step of the Ukraine in the direction of improving the energy efficiency of housing should be the effective operation of a dedicated/specific energy efficiency fund to ensure stable financing of housing modernization projects, which will allow for a comprehensive renovation of buildings and lead to significant annual energy savings in this end-use sector.

Assessment of efficiency of energy optimal driving mode for system of «pilot-free» movement of electric multiple units on the Moscow Central Ring

2020 ◽  
pp. 89-93
Author(s):  
Vasiliy Titovich Cheremisin ◽  
◽  
Mikhail Mikhaylovich Nikiforov ◽  
Alexander Sergeevich Vilgelm ◽  
Sergey Yuryevich Ushakov ◽  
...  
Keyword(s):  
Energy Efficiency ◽  
Power Consumption ◽  
Energy Efficient ◽  
Experimental Studies ◽  
Central Ring ◽  
Driving Mode ◽  
Optimal Driving ◽  
The Given ◽  
Smooth Acceleration ◽  
Multiple Units

According to results of experimental studies within the framework of the Moscow Central Ring the authors revealed the best trips of drivers in terms of energy efficiency of train traction. The analysis of these trips allowed determining riding techniques that provide energy saving: smooth acceleration and braking at unconditional performance of the given train schedule. On the basis of the developed simulation model of the Moscow Central Ring it is established that the use of energy efficient techniques of riding with the on time train performance can reduce the power consumption on train traction by 13.3 %.

scholarly journals Energy-Efficient Multi-Job Scheduling Model for Cloud Computing and Its Genetic Algorithm

2012 ◽  
Vol 2012 ◽  
pp. 1-16 ◽  
Author(s):  
Xiaoli Wang ◽  
Yuping Wang ◽  
Hai Zhu
Keyword(s):  
Energy Efficiency ◽  
Cloud Computing ◽  
Energy Efficient ◽  
Job Scheduling ◽  
Point Of View ◽  
Scheduling Model ◽  
Fitness Value ◽  
New Energy ◽  
Searching Ability ◽  
Local Search Operator

For the problem that the energy efficiency of the cloud computing data center is low, from the point of view of the energy efficiency of the servers, we propose a new energy-efficient multi-job scheduling model based on Google’s massive data processing framework. To solve this model, we design a practical encoding and decoding method for the individuals and construct an overall energy efficiency function of the servers as the fitness value of each individual. Meanwhile, in order to accelerate the convergent speed of our algorithm and enhance its searching ability, a local search operator is introduced. Finally, the experiments show that the proposed algorithm is effective and efficient.

scholarly journals Design of energy efficient four finger robotic hand

2016 ◽  
Vol 5 (1) ◽  
pp. 1
Author(s):  
Bhivraj Suthar
Keyword(s):  
Power Consumption ◽  
Energy Efficient ◽  
Mechanical Design ◽  
Electrical Power ◽  
Point Of View ◽  
Robotic Hand ◽  
Efficient System ◽  
Single Motor ◽  
The World ◽  
Electrical Power Consumption

<span>Future would be the world of robotics. Human arm is the best serial manipulator in the world. End part of manipulator is known as End effector or hand. At the end of serial manipulator we always put gripper just like our hand. Today many mechanisms have been proposed for robotic hand. We proposed a novel mechanical design and we used one motor to operate the gripper mechanism and it consumes less electrical power than other gripper. For energy efficient robot we have to reduce the number of motors and have to look in the mechanical design. In this paper we targeted to make gripper more energy efficient. We used only one motor to operate four fingers symmetrically. Our proposed model has four fingers, each are placed orthogonally to each other. In market, other manufactures use single motor for motion of each finger. Each motor has its own power consumption capacity to manipulate the load on finger. We replaced all four motors with single motor by Geneva mechanism. So electrical power consumption reduced by 1/4th. Energy conservation point of view it is energy efficient system. This paper presents a methodology that has been applied for a design mechanism for energy efficient robotic hand with four fingers. Wide applications of gripper are in automobile industries. Automobile companies are used gripers and serial manipulators in plenty</span>

scholarly journals Sustainable Strategy to Sustainable Business: An Empirical Analysis on Energy-Efficient Light Bulb

2021 ◽  
Vol 13 (24) ◽  
pp. 13791
Author(s):  
Muslima Zahan
Keyword(s):  
Energy Efficiency ◽  
Competitive Advantage ◽  
Energy Efficient ◽  
Sustainable Consumption ◽  
Point Of View ◽  
Sample Survey ◽  
Market Demand ◽  
Light Bulb ◽  
Sustainable Business ◽  
Sustainable Products

Energy Efficiency is one of the key elements of the Environment-Economic aspect of the three spheres of sustainability. To make any business sustainable in the light bulb industry, it could be applied as a strategy to gain competitive advantage in the functional level. This paper investigates the market awareness of environmentally friendly products such as the energy efficient light bulb (or energy bulb) and its market availability, demand, quality and brightness, low waste (e-waste), sustainable consumption (durability), warranty, commission rate, and profitability. It also finds that energy efficiency and low waste are valuable strategies to create market demand for energy bulbs to make sustainable profit and product stewardship eventually to contribute to the e-waste management. A 500 sample survey is conducted in Bangladesh to analyze the energy bulb buyers’ and sellers’ view about this product locally. After the results and interpretation through descriptive statistics and regression of the variables, this study finally draws a pathway model to show that sustainable energy definitely leads to sustainable business. From the buyers’ point of view, sustainable consumption and low waste as well as from the sellers’ point of view profit and sustainable product both support sustainable business backed by sustainable strategy, energy efficiency being the key. To make the competitive advantage enduring, ensure profitability and profit growth for the shareholders of the corporate world, especially the electrical and electronics industry; with the energy bulb in particular, an energy efficiency strategy could be implemented in businesses worldwide. As the COP26 (The 2021 United Nations Conference on Climate Change) limits the global warming rise by 1.5%, energy bulb has been the pioneer in promoting sustainable products to adopt the sustainable strategy to limit carbon emissions globally.

Energieeffizienz von Umformmaschinen*/Energy efficiency of forming machines – Method for determining the efficiency maps of forming machines

2018 ◽  
Vol 108 (10) ◽  
pp. 646-651
Author(s):  
R. Krimm ◽  
B.-A. Behrens ◽  
J. Koß
Keyword(s):  
Energy Efficiency ◽  
Significant Role ◽  
Energy Efficient ◽  
Point Of View ◽  
Efficient Design ◽  
New Approach ◽  
Forming Technology ◽  
Production Processes ◽  
Lack Of Information ◽  
The Press

Aus ökologischer Sicht gewinnt die energieeffiziente Gestaltung produktionstechnischer Prozesse zunehmend an Bedeutung. Im Bereich der Umformtechnik spielt der Wirkungsgrad der für die Umformung eingesetzten Presse eine entscheidende Rolle. Dennoch liegen derzeit keine umfassenden Daten über die Wirkungsgrade von neuen Pressen oder Altanlagen vor. In diesem Fachbeitrag werden die Gründe hierfür erläutert und ein neues Verfahren vorgestellt, mit welchem sich dieser Zustand bald ändern ließe. &nbsp; From an ecological point of view, the energy-efficient design of production processes becomes increasingly important. In the field of forming technology, the efficiency of the press used for forming plays a significant role. Nevertheless, there is currently no comprehensive data available on the efficiency of new presses or old plants. In this paper, the reasons for the lack of information are explained and a new approach is presented which could solve this issue.

ENERGY EFFICIENT GEOGRAPHIC ROUTING ALGORITHMS IN WIRELESS SENSOR NETWORK

2013 ◽  
Vol 14 (01) ◽  
pp. 1350001 ◽  
Author(s):  
TSENG-YI CHEN ◽  
HSIN-WEN WEI ◽  
CHE-RUNG LEE ◽  
FU-NAN HUANG ◽  
TASN-SHENG HSU ◽  
...  
Keyword(s):  
Energy Efficiency ◽  
Wireless Sensor Network ◽  
Power Consumption ◽  
Sensor Network ◽  
Energy Efficient ◽  
Geographic Routing ◽  
Routing Algorithms ◽  
Wireless Sensor ◽  
Routing Methods ◽  
Computation Speed

Over the past decade, energy efficiency has consistently been a critical research topic in the field of wireless sensor networks. In wireless networks, signal interference often leads to power waste in a sensor node. Several SINR-based routing algorithms designed for energy efficiency or interference avoidance had been proposed. However, they are either too complex to be useful in practices or may slow in routing computation speed. In this paper, two energy efficient geographic routing algorithms (EEGRA) for wireless sensor network are proposed to address the power consumption issue while considering the routing computation speed. The first algorithm take the value of interference into the routing cost function, and uses it in the routing decision. The second algorithm transforms the problem into a constrained optimization problem, and solves it by searching the optimal discretized interference level. We adopt four geographic routing algorithms: GOAFR+, Face Routing, GPSR, and RandHT, in EEGRA algorithms and compare them with three other routing methods in terms of power consumption and computation cost for the grid and irregular sensor topologies. The experimental result shows that the EEGRA algorithms reduce energy consumption by 30–50% comparing to geographic routing methods. In addition, the time complexity of EEGRA algorithms is similar to the geographic greedy routing methods, which is much faster than the optimal SINR-based algorithm.

Low Power Adiabetic Logic System for Biomedical Applications

2021 ◽  
Vol 11 (12) ◽  
pp. 3123-3132
Author(s):  
M. Mailsamy ◽  
V. Rukkumani ◽  
K. Srinivasan
Keyword(s):  
Energy Efficiency ◽  
Power Consumption ◽  
Low Power ◽  
Medical Devices ◽  
Energy Efficient ◽  
Biomedical Applications ◽  
Cmos Inverter ◽  
Adiabatic Logic ◽  
Implanted Medical Devices ◽  
Multi Phase

There have been significant advances in sensors and device structures in the medical industry, particularly in implanted medical devices. Increasingly complex electronic circuitry may now be implanted in the human body thanks to compact, high-energy batteries and hermetic packaging. These gadgets must adhere to strict power consumption guidelines due to the battery recharging schedule. Designing energy-efficient circuits and systems becomes increasingly important as a result of this fact. Adiabatic circuits provide a hopeful alternative for traditional circuitry in case of low energy design. Because of power-clock phases synchronization complexity, designing and functionally verifying presenting 4-phase adiabatic circuitry takes longer. Accordingly, multiple clock generators are used typically and can reveal enhanced consumption of energy in the network of clock distribution. Furthermore, they are not suitable for designing in high-speed because of their clock skew management and high complexity issues. In this paper, TMEL (True multi-phase energy recovering logic), the first energyrecovering/adiabatic logic family is presented for biomedical applications, which functions using the scheme multiple-phase sinusoidal clocking. Moreover, a system of SCAL, a source-coupled variation with TMEL having enhanced energy efficiency and supply voltage scalability, is introduced. A novel true multi-phase Approach and Source-coupled adiabatic logic for energy effective communication system is proposed. The adiabatic logic is employed for both write and read side operation. The CMOS inverter is integrated with TMEL cascades, which in turn reduces leakage loss. In SCAL, the optimal performance at any operating circumstance is attained byan adjustable current source in each gate. SCAL, and TMEL, are capable of outperforming existing adiabatic logic families concerning operating speed and energy efficiency. The performance analysis was carried and simulated through 45 nm CMOS inverter in terms of leakage power, delay, and power consumption. In particular, for the clock rates that range from 10 MHz to 200 MHz, the proposed SCAL was more energy-efficient and less dissipative on comparing their pipelined or purely combinational CMOS counterparts. In biomedical equipment, the system may be included into the low-power design since it is energy efficient and very robust. Improvements in VLSI technology, such as increased dynamic range, low-voltage EEPROMs (electrically eraseable programmable ROMs), and specific sensor techniques, are also expected to contribute to advancements in implanted medical devices in the near future.

scholarly journals Energy-Efficient Transmission Based on Direct Links: Toward Secure Cooperative Internet of Things

2018 ◽  
Vol 2018 ◽  
pp. 1-8 ◽  
Author(s):  
Xiaohui Shang ◽  
Aijun Liu ◽  
Yida Wang ◽  
Qing Xie ◽  
Yong Wang
Keyword(s):  
Energy Efficiency ◽  
Internet Of Things ◽  
Energy Efficient ◽  
Secrecy Outage Probability ◽  
Transmission Scheme ◽  
Practical Applications ◽  
Multiple Sensors ◽  
Secrecy Outage ◽  
Secure Transmission ◽  
Efficient Transmission

In this paper, the secure uplink transmission scenario in Internet of Things (IoT) applications is investigated, where one of multiple sensors communicates with the controller aided by the cooperative relay. Firstly, by considering the direct link, an energy-efficient transmission scheme (EET) is proposed, which can be suitable for the resource-constrained devices and applications in IoT communication. Moreover, the secrecy outage probability (SOP) and secure energy efficiency (SEE) of different transmission strategies are derived, which contributes to the design of energy-efficient secure transmission. Finally, simulation results demonstrate that EET outperforms other transmission protocols in terms of SEE in most situations. To improve the secrecy performance and energy efficiency of the IoT deployment, EET can be adopted as an effective additional strategy in practical applications.

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