scholarly journals Untitled ItemEnhanced Connectivity and Energy Efficient Networking for Modern Railways Communication Systems

2019 ◽  
Author(s):  
Elias Yaacoub ◽  
Ahmad Alsharoa ◽  
Hakim Ghazzai ◽  
Mohamed-Slim Alouini
Keyword(s):  
Energy Efficiency ◽  
Communication Networks ◽  
Energy Efficient ◽  
Communication Systems ◽  
Term Evolution ◽  
Technological Advances ◽  
Lte Advanced ◽  
Data Rates ◽  
Mobile Relays

<b>To meet the increasing demands for passenger data rates, modern railway communication networks face significant challenges. The advent of 5G communications after the long-term evolution (LTE) and LTE-Advanced (LTE-A) systems provides several technological advances to address these challenges. In this paper, after reviewing the main 5G communication aspects for modern railways, we present methods to ensure connectivity and energy efficiency for the passengers' user equipment (UE) through the use of mobile relays (MRs) on top of the train wagons in conjunction with intelligent resource allocation. Relevant challenges to train connectivity are also presented, and suitable solutions are outlined.</b>

scholarly journals Untitled ItemEnhanced Connectivity and Energy Efficient Networking for Modern Railways Communication Systems

2019 ◽  
Author(s):  
Elias Yaacoub ◽  
Ahmad Alsharoa ◽  
Hakim Ghazzai ◽  
Mohamed-Slim Alouini
Keyword(s):  
Energy Efficiency ◽  
Communication Networks ◽  
Energy Efficient ◽  
Communication Systems ◽  
Term Evolution ◽  
Technological Advances ◽  
Lte Advanced ◽  
Data Rates ◽  
Mobile Relays

<b>To meet the increasing demands for passenger data rates, modern railway communication networks face significant challenges. The advent of 5G communications after the long-term evolution (LTE) and LTE-Advanced (LTE-A) systems provides several technological advances to address these challenges. In this paper, after reviewing the main 5G communication aspects for modern railways, we present methods to ensure connectivity and energy efficiency for the passengers' user equipment (UE) through the use of mobile relays (MRs) on top of the train wagons in conjunction with intelligent resource allocation. Relevant challenges to train connectivity are also presented, and suitable solutions are outlined.</b>

scholarly journals Seven Challenges for Communication in Modern Railway Systems

2021 ◽  
Vol 1 ◽  
Author(s):  
Elias Yaacoub ◽  
Ahmad Alsharoa ◽  
Hakim Ghazzai ◽  
Mohamed-Slim Alouini
Keyword(s):  
Resource Allocation ◽  
Energy Efficiency ◽  
Communication Networks ◽  
Railway Systems ◽  
Term Evolution ◽  
Technological Advances ◽  
Lte Advanced ◽  
Data Rates ◽  
Mobile Relays

To meet the increasing demands for passenger data rates, modern railway communication networks face significant challenges. The advent of 5G communications after the long-term evolution (LTE) and LTE-Advanced (LTE-A) systems provides several technological advances to address these challenges. In this paper, after reviewing the main 5G communication aspects for modern railways, we describe seven main challenges faced by train connectivity, and discuss appropriate solutions. Specifically, we elaborate on techniques for ensuring connectivity and energy efficiency for the passengers' user equipment (UE) through the use of mobile relays (MRs) on top of the train wagons in conjunction with intelligent resource allocation.

scholarly journals Energy-Efficient Hybrid Routing Protocol for IoT Communication Systems in 5G and Beyond

Sensors ◽  
2021 ◽  
Vol 21 (2) ◽  
pp. 537
Author(s):  
Mohammad Baniata ◽  
Haftu Tasew Reda ◽  
Naveen Chilamkurti ◽  
Alsharif Abuadbba
Keyword(s):  
Energy Efficiency ◽  
Network Lifetime ◽  
Energy Efficient ◽  
Communication Systems ◽  
Multiple Input Multiple Output ◽  
Sensor Nodes ◽  
Clustering Methods ◽  
Mimo Antenna ◽  
Improve Energy Efficiency ◽  
Art Research

One of the major concerns in wireless sensor networks (WSNs) is most of the sensor nodes are powered through limited lifetime of energy-constrained batteries, which majorly affects the performance, quality, and lifetime of the network. Therefore, diverse clustering methods are proposed to improve energy efficiency of the WSNs. In the meantime, fifth-generation (5G) communications require that several Internet of Things (IoT) applications need to adopt the use of multiple-input multiple-output (MIMO) antenna systems to provide an improved capacity over multi-path channel environment. In this paper, we study a clustering technique for MIMO-based IoT communication systems to achieve energy efficiency. In particular, a novel MIMO-based energy-efficient unequal hybrid clustering (MIMO-HC) protocol is proposed for applications on the IoT in the 5G environment and beyond. Experimental analysis is conducted to assess the effectiveness of the suggested MIMO-HC protocol and compared with existing state-of-the-art research. The proposed MIMO-HC scheme achieves less energy consumption and better network lifetime compared to existing techniques. Specifically, the proposed MIMO-HC improves the network lifetime by approximately 3× as long as the first node and the final node dies as compared with the existing protocol. Moreover, the energy that cluster heads consume on the proposed MIMO-HC is 40% less than that expended in the existing protocol.

scholarly journals 3G Long Term Evolution Baseband Processing with Application-Specific Processors

2009 ◽  
Vol 2009 ◽  
pp. 1-13 ◽  
Author(s):  
Perttu Salmela ◽  
Juho Antikainen ◽  
Teemu Pitkänen ◽  
Olli Silvén ◽  
Jarmo Takala
Keyword(s):  
Software Defined Radio ◽  
High Capacity ◽  
Long Term Evolution ◽  
Sphere Decoding ◽  
Interprocessor Communication ◽  
Term Evolution ◽  
Data Rates ◽  
Universal Mobile Telecommunications System ◽  
Application Specific

Data rates in the upcoming 3G long term evolution (LTE) standard will be manifold when compared to the current universal mobile telecommunications system. Implementing receivers conforming with the high-capacity transmission techniques is challenging due to the complexity and computational requirements of algorithms. In this study, the software defined radio (SDR) is targeted and the four essential baseband functions of the 3G LTE receiver, namely, list sphere decoding, fast Fourier transform, QR decomposition, and turbo decoding, are addressed and the functions are implemented as application specific processors (ASPs). As a result, the design space that describes the essential computational challenges of 3G LTE receivers is clarified and estimates of area, power, and interprocessor communication buffer requirements are presented.

scholarly journals Consumers' Response to State Energy Efficient Appliance Rebate Programs

2017 ◽  
Vol 9 (4) ◽  
pp. 227-255 ◽  
Author(s):  
Sébastien Houde ◽  
Joseph E. Aldy
Keyword(s):  
Energy Efficiency ◽  
Energy Efficient ◽  
Energy Demand ◽  
State Energy ◽  
Government Expenditure ◽  
Order Of Magnitude ◽  
Term Energy ◽  
The Impact

Through an evaluation of the 2009 Recovery Act's State Energy Efficient Appliance Rebate Program, this paper examines consumers' response to energy efficiency rebates. The analysis shows that 70 percent of consumers claiming a rebate were inframarginal and an additional 15 percent–20 percent of consumers simply delayed their purchases by a few weeks. Consumers responded to rebates by upgrading to higher quality, but less energy-efficient models. Overall the impact of the program on long-term energy demand is likely to be small. Measures of government expenditure per unit of energy saved are an order of magnitude higher than estimates for other energy efficiency programs. (JEL D12, H31, H71, Q48)

The Long-Term Trend toward Increased Dispersion in the Distributions of City Sizes

1991 ◽  
Vol 23 (12) ◽  
pp. 1725-1740 ◽  
Author(s):  
B M Roehner
Keyword(s):  
Communication Networks ◽  
Pareto Distribution ◽  
City Size ◽  
Size Distributions ◽  
Spatial Decomposition ◽  
Economic Progress ◽  
Term Evolution ◽  
Long Term Trend ◽  
Major Occupation

City-size distributions follow a Pareto distribution, a property which is also known as the rank-size rule. Yet very different Pareto powers, α, are to be observed, ranging from 0.5 to 2. In this paper two complementary models are proposed to relate observed values of α to basic economic phenomena. In the first, the interdependence between cities and their economic environment is analysed. It is therefore a spatial model in which production, transportation, and land productivities are the pertinent variables. In the second model the economic evolution taking place inside cities is analysed. This involves the population of major occupation groups as significant variables. Historical data are presented showing that improved communication networks and economic progress result in decreasing values of α. Both models account for this long-term evolution. It is known, however, that in some areas the distribution of city sizes does not follow the rank-size rule. It is shown that a better understanding of such distributions can be obtained from a spatial decomposition of city-size distributions.

scholarly journals Miniaturized PIFA for 5G Communication Networks

2020 ◽  
Vol 10 (4) ◽  
pp. 1326 ◽  
Author(s):  
Eugene Rhee
Keyword(s):  
Radiation Pattern ◽  
Communication Networks ◽  
Mobile Communication ◽  
Antenna Gain ◽  
Communication Services ◽  
Term Evolution ◽  
Key Characteristics ◽  
5G Communication ◽  
Internal Antenna

This paper designed a miniaturized Planar Inverted-F Antenna for 5G communication networks, including Long-Term Evolution Advanced mobile communication services. By showing the radiation pattern, voltage standing wave ratio, and antenna gain of the designed Planar Inverted-F Antenna, this paper evaluates its performance. To show the key characteristics of the Planar Inverted-F Antenna, this paper modeled and simulated it with various variances. Moreover, the real Planar Inverted-F Antenna was fabricated and measurements were done to validate the simulated characteristics of the internal antenna.

Energy-Efficient Overload Control Algorithm to Parlay Gateway in Next-Generation Electric Power Communication Networks

2013 ◽  
Vol 765-767 ◽  
pp. 1844-1848
Author(s):  
Wei Zhe Ma ◽  
Yue Hua Li ◽  
Man Rui Song ◽  
Fan Bo Meng
Keyword(s):  
Communication Network ◽  
Energy Efficiency ◽  
Electric Power ◽  
Communication Networks ◽  
Energy Efficient ◽  
Control Algorithm ◽  
Ant Colony Algorithm ◽  
Next Generation ◽  
Overload Control ◽  
Simulation Results

This paper studies the overload control problem of the Parlay gateway in next-generation electric power communication network. First, this paper analyses the effectiveness and fairness of the overload control of the Parlay gateway. And then taking the energy efficiency of the electric power communication network as target, we establish the optimization model of energy efficiency overload control. Thirdly, we put forward an energy efficiency overload control algorithm based on the ant colony algorithm. Simulation results show that our algorithm is feasible and effective.

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