期刊文献+
共找到12篇文章
< 1 >
每页显示 20 50 100
Interference Mitigation in D2D Communication Underlying Cellular Networks:Towards Green Energy 被引量:2
1
作者 Rana Zeeshan Ahamad Abdul Rehman Javed +3 位作者 Shakir Mehmood Mohammad Zubair Khan Abdulfattah Noorwali Muhammad Rizwan 《Computers, Materials & Continua》 SCIE EI 2021年第7期45-58,共14页
Device to Device(D2D)communication is emerging as a new participant promising technology in 5G cellular networks to promote green energy networks.D2D communication can improve communication delays,spectral efficiency,... Device to Device(D2D)communication is emerging as a new participant promising technology in 5G cellular networks to promote green energy networks.D2D communication can improve communication delays,spectral efficiency,system capacity,data off-loading,and many other fruitful scenarios where D2D can be implemented.Nevertheless,induction of D2D communication in reuse mode with the conventional cellular network can cause severe interference issues,which can significantly degrade network performance.To reap all the benefits of induction of D2D communication with conventional cellular communication,it is imperative to minimize interference’s detrimental effects.Efficient power control can minimize the negative effects of interference and get benefits promised by D2D communication.In this work,we propose two power control schemes,Power Control Scheme 1(PCS 1)and Power Control Scheme 2(PCS 2),to minimize the interference and provide performance analysis.Simulation results observe improvements with PCS 1 and PCS 2 as compared to without using any power control scheme in terms of data rate in both uplink and downlink communication modes of Cellular User Equipment(CUE). 展开更多
关键词 Interference mitigation green IoT green networks D2D power control spectral efficiency reuse mode
下载PDF
5G Green Mobile Communication Networks 被引量:6
2
作者 Guoqiang Mao 《China Communications》 SCIE CSCD 2017年第2期183-184,共2页
With the popularization of wireless multimedia communications,the wireless traffic is predicated to be increased more than 1000time in the next decade.Some new technologies,e.g.,massive multi.input multi.output antenn... With the popularization of wireless multimedia communications,the wireless traffic is predicated to be increased more than 1000time in the next decade.Some new technologies,e.g.,massive multi.input multi.output antennas,millimeter wave and small 展开更多
关键词 green Mobile Communication networks
下载PDF
Project of “Three Networks Greening” based on optimal allocation in the Yellow River Delta,China (Dongying section) 被引量:1
3
作者 ZHAO Jun LIU Gao-huan +1 位作者 LIU Qing-sheng HUANG Chong 《Forestry Studies in China》 CAS 2010年第4期236-242,共7页
We have used the Yellow River Delta (Dongying section) as our study area to address the project of "Three Networks Greening" (TNG). With the use of GIS technology and from an ecological point of view, an optimal... We have used the Yellow River Delta (Dongying section) as our study area to address the project of "Three Networks Greening" (TNG). With the use of GIS technology and from an ecological point of view, an optimal allocation scheme of land resources is constructed and applied to guide the adjustment of land resources. Given this scheme, we have calculated that the area of land suitable for forest and shrubs without greening is 2256 km^2. Simultaneously, acting on the layout of the TNG project, afforestation site types are prepared and improved. Soil types, microrelief, salinity and underwater levels are combined as major classification factors and irrigation conditions as a reference to classify sites into eight types. In this way, land suitable for forest and grass is afforested given particular planting patterns. Finally, by overlaying this forestry site type map with the TNG plan map, some suggestions and strategies are proposed and used to direct the TNG project. An ecological oasis of the Yellow River Delta should be the result. 展开更多
关键词 land resources optimal allocation Three networks greening site condition types Yellow River Delta
下载PDF
Traffic prediction enabled dynamic access points switching for energy saving in dense networks 被引量:1
4
作者 Yuchao Zhu Shaowei Wang 《Digital Communications and Networks》 SCIE CSCD 2023年第4期1023-1031,共9页
To meet the ever-increasing traffic demand and enhance the coverage of cellular networks,network densification is one of the crucial paradigms of 5G and beyond mobile networks,which can improve system capacity by depl... To meet the ever-increasing traffic demand and enhance the coverage of cellular networks,network densification is one of the crucial paradigms of 5G and beyond mobile networks,which can improve system capacity by deploying a large number of Access Points(APs)in the service area.However,since the energy consumption of APs generally accounts for a substantial part of the communication system,how to deal with the consequent energy issue is a challenging task for a mobile network with densely deployed APs.In this paper,we propose an intelligent AP switching on/off scheme to reduce the system energy consumption with the prerequisite of guaranteeing the quality of service,where the signaling overhead is also taken into consideration to ensure the stability of the network.First,based on historical traffic data,a long short-term memory method is introduced to predict the future traffic distribution,by which we can roughly determine when the AP switching operation should be triggered;second,we present an efficient three-step AP selection strategy to determine which of the APs would be switched on or off;third,an AP switching scheme with a threshold is proposed to adjust the switching frequency so as to improve the stability of the system.Experiment results indicate that our proposed traffic forecasting method performs well in practical scenarios,where the normalized root mean square error is within 10%.Furthermore,the achieved energy-saving is more than 28% on average with a reasonable outage probability and switching frequency for an area served by 40 APs in a commercial mobile network. 展开更多
关键词 Access points switching on/off ENERGY-SAVING green network Long short-term memory Traffic prediction
下载PDF
Powering Mobile Networks with Optimal Green Energy for Sustainable Development
5
作者 Mohammed H.Alsharif Mahmoud A.Albreem +5 位作者 Abu Jahid Kannadasan Raju Peerapong Uthansakul Jamel Nebhen Venkatesan Chandrasekaran Ayman A.Aly 《Computers, Materials & Continua》 SCIE EI 2021年第10期661-677,共17页
Green wireless networking is an emerging area for many societies,especially academia and industry,in light of economic and ecological perspectives.Empowering wireless infrastructures exploiting green power sources can... Green wireless networking is an emerging area for many societies,especially academia and industry,in light of economic and ecological perspectives.Empowering wireless infrastructures exploiting green power sources can enhance sustainability due to the adverse effects of conventional power sources and atmospheric circumstances.Moreover,the specific power supply requirements for a base station(BS),such as cost effectiveness,efficiency,sustainability,and reliability,can be met by utilizing technological advances in renewable energy.Numerous drivers and motivators are involved in the deployment of renewable energy technologies and the transition toward green energy.Renewable energy is free,clean,and abundant in most locations throughout the year.In this work,a sustainable optimal stand-alone solarpowered model envisioning green cellular BSs for urban locations in Oman is proposed.This model can extend 24 h uninterrupted power supply support to a cellular BS that fully utilizes an integrated storage device.The system analysis is conducted using a hybrid optimization model for electric renewables(HOMER)based on actual prevailing conditions of the regions and their technical feasibility.The results showed can be achieved operational expenditure savings up to 16%.These outcomes provide a huge benefit to the cellular operators of Oman economically,technically,and ecologically. 展开更多
关键词 Wireless networks green wireless networks green communications SUSTAINABILITY OPEX
下载PDF
Optimal Cost-Aware Paradigm for Off-Grid Green Cellular Networks in Oman
6
作者 Mohammed H.Alsharif Kannadasan Raju +4 位作者 Abu Jahid Mahmoud A.Albreem Peerapong Uthansakul Jamel Nebhen Venkatesan Chandrasekaran 《Computers, Materials & Continua》 SCIE EI 2021年第8期2665-2680,共16页
Green wireless networks or energy-efficient wireless networks have gained popularity as a research topic due to the ecological and economic concerns of cellular operators.The specific power supply requirements for the... Green wireless networks or energy-efficient wireless networks have gained popularity as a research topic due to the ecological and economic concerns of cellular operators.The specific power supply requirements for the cellular base station,such as cost-effectiveness,efficiency,sustainability,and reliability,can be met by utilizing the technological advances in renewable energy.There are numerous drivers for the deployment of renewable energy technologies and the transition towards green energy.Renewable energy is free,clean,and abundant in most locations throughout the year.Accordingly,this work proposes a novel framework for energy-efficient solar-powered base stations for the Oman site,specifically for off-grid locations where fuel transportation for diesel generator(DG)is a serious concern.To demonstrate the effectiveness of the proposed system for off-grid sites,the Hybrid Optimization Model for Electric Renewables optimization software is adapted by considering real-time conditions and its technical feasibility.Different cost factors such as capital cost,salvage cost,replacement cost,operational,and maintenance cost of PV panels,inverters,and batteries also undergo extensive analysis.From the observed results,the total net present cost(NPC)of the proposed system is$27,887,while the net NPC of the DG is estimated at$32,900.Remarkably,the proposed scheme can potentially achieve considerable savings in the operational expenditure at approximately 15.24%.Indeed,these outcomes can provide profound economic,technical,and ecological benefits to the cellular operators of Oman.It also ensures a sizeable reduction in greenhouse gas that supports sustainable green wireless network deployment in remote areas. 展开更多
关键词 Wireless networks green wireless networks green communications SUSTAINABILITY OPEX
下载PDF
Green Multicast Grooming Based on Cross-Shared Protection in Optical WDM Networks
7
作者 YU Cunqian LIU Yejun JIANG Peipei ZHU Lijiao GOU Lei HAO Liyuan 《China Communications》 SCIE CSCD 2014年第5期105-113,共9页
Currently,multicast survivability in optical network obtains more attention.This paper focuses on the field of multicast grooming shared protection in green optical network and designs a novel auxiliary graph and a sh... Currently,multicast survivability in optical network obtains more attention.This paper focuses on the field of multicast grooming shared protection in green optical network and designs a novel auxiliary graph and a shared matrix to address the survivable multicast resource consumption.This paper also proposes a new heuristic called Green Multicast Grooming algorithm based on spanning path Cross-Shared protection(GMGCSP),in which network reliability,energy efficiency and resource utilization are jointly considered.Simulation results testify that,compared to other algorithms,the proposed GMG-CSP not only has lower blocking probability and higher bandwidth utilization ratio,but also saves more energy. 展开更多
关键词 green optical network multicast cross-shared grooming shared matrix
下载PDF
An Approach to the Construction of Green Infrastructure and Green Spatial Governance for a City
8
作者 Ho-Mo Hung 《Journal of Environmental Science and Engineering(A)》 2015年第11期596-601,共6页
There is a substantial significance to construct city green spaces for improvement of the city environment and ecological function. The conservation of city green space includes a sound plan of green space and the non... There is a substantial significance to construct city green spaces for improvement of the city environment and ecological function. The conservation of city green space includes a sound plan of green space and the non-statutory parks and green open space, which are open spaces of both public and private land to be greened, they both become the basis for constructing an ecological green network of great city environment. To manipulate cross-sectoral integration, the city greening practice performs effective implementation. The main objective of an approach is to perform the governance indices of green spaces by expert questionnaire and then draft the greening strategies for Taipei city to improve the green landscape and the quality of city environment. The research draws on the green infrastructure and green ecological network system, analyzes the green ecological resources and the characteristic and structure of city spaces in Taipei city, in the meanwhile, learns the domestic and international experiences of greening development. By means of city green space of activation transformation and program of action under greening performance, Taipei city promotes the green image and the quality of city environment and green city landscape. 展开更多
关键词 green spatial governance city greening green ecological network green spatial governance index
下载PDF
The Practice Strategy of Construction of Ecological Garden City in China: A Case Study of Action of “Xuchang Being Full of Green” in Xuchang City
9
作者 LI Manyuan YANG Kailiang +2 位作者 ZHAI Xiaohui LI Yanke YANG Tao 《Journal of Landscape Research》 2020年第1期80-84,共5页
Starting from the purpose and current situation of the implementation of action of "Xuchang being full of green",this study analyzed the problems existing in the implementation of action of "Xuchang bei... Starting from the purpose and current situation of the implementation of action of "Xuchang being full of green",this study analyzed the problems existing in the implementation of action of "Xuchang being full of green" and discussed the implementation plan of action of "Xuchang being full of green" from two aspects of macro strategy and node promotion strategy,hoping to promote the construction of ecological garden cities in Xuchang and other cities in China. 展开更多
关键词 Urban ecosystem Ecological garden city Urban green network green space system Nodepromotion
下载PDF
Design and implementation of Ad-Hoc collaborative proxying scheme for reducing network energy waste 被引量:2
10
作者 Rafiullah Khan Sarmad Ullah Khan 《Digital Communications and Networks》 SCIE 2017年第2期118-128,共11页
Network devices are equipped with low power states but they are rarely activated due to their inability of maintaining network connectivity. Recently, Network Connectivity Proxy (NCP) concept has been proposed in li... Network devices are equipped with low power states but they are rarely activated due to their inability of maintaining network connectivity. Recently, Network Connectivity Proxy (NCP) concept has been proposed in literature as an effective mechanism to exploit full potential of low power features on network devices by impersonating their virtual presence. However, the NCP concept faces several open issues and challenges especially related to proxying of TCP connections and majority of daily used proprietary dosed-source applications. This paper presents a new approach for reducing network energy waste through intelligent collaboration among daily used devices (e.g., desktop computers, laptops, tablets, smartphones, etc). It guarantees to run applications on only and only one user device that is under active use at that specific moment. To reduce energy waste and allow idle devices to sleep, our approach also takes benefit from a light- weight home gateway proxy with very basic practically realizable functionalities. The proposed system not just reduces energy waste of fixed devices but also enables mobile devices to significantly improve their battery life. Our developed software prototypes allow devices to autonomously and seamlessly collaborate with each other without requiring any configuration or user input. Further, this paper also presents the basic performance evaluation of developed prototypes in real networking environments. 展开更多
关键词 green networking Energy efficiency SMARTPHONE Home gateway proxy Power measurement Universal Plug Play
下载PDF
Optimization Analysis of Sustainable Solar Power System for Mobile Communication Systems
11
作者 Mohammed H.Alsharif Raju Kannadasan +4 位作者 Amir Y.Hassan Wael Z.Tawfik Mun-Kyeom Kim Muhammad Asghar Khan Ahmad A.A.Solyman 《Computers, Materials & Continua》 SCIE EI 2022年第5期3243-3255,共13页
Cellular mobile technology has witnessed tremendous growth in recent times.One of the challenges facing the operators to extend the coverage of the networks to meet the rising demand for cellular mobile services is th... Cellular mobile technology has witnessed tremendous growth in recent times.One of the challenges facing the operators to extend the coverage of the networks to meet the rising demand for cellular mobile services is the power sources used to supply cellular towers with energy,especially in remote.Thus,switch from the conventional sources of energy to a greener and sustainable power model became a target of the academic and industrial sectors in many fields;one of these important fields is the telecommunication sector.Accordingly,this study aims to find the optimum sizing and technoeconomic investigation of a solar photovoltaic scheme to deploy cellular mobile technology infrastructure cleanly and sustainably.The optimal solarpowered system is designed by employing the energy-balance procedures of the HOMER software tool.The problem objective is considered in terms of cost,but the energy system is constrained to meet the power demand reliably.Process simulations were performed to determine the optimum sizing,performance and monetary cost of the power system,using long-term meteorological datasets for a case study site with defined longitude(31◦25E)and latitude(30◦06N).From the observed results,the total net present cost(NPC)of the proposed system is$28,187.Indeed,these outcomes can provide profound economic,technical,and ecological benefits to cellular operators.It also ensures a sizeable reduction in greenhouse gas that supports sustainable green wireless network(WN)deployment in remote areas. 展开更多
关键词 Wireless networks green wireless networks green communications SUSTAINABILITY OPEX
下载PDF
Virtual network embedding for power savings of servers and switches in elastic data center networks
12
作者 Weigang HOU Cunqian YU +1 位作者 Lei GUO Xuetao WEI 《Science China Earth Sciences》 SCIE EI CAS CSCD 2016年第12期97-110,共14页
Currently, the elastic interconnection has realized the high-rate data transmission among data centers(DCs). Thus, the elastic data center network(EDCN) emerged. In EDCNs, it is essential to achieve the virtual networ... Currently, the elastic interconnection has realized the high-rate data transmission among data centers(DCs). Thus, the elastic data center network(EDCN) emerged. In EDCNs, it is essential to achieve the virtual network(VN) embedding, which includes two main components: VM(virtual machine) mapping and VL(virtual link) mapping. In VM mapping, we allocate appropriate servers to hold VMs. While for VL mapping,an optimal substrate path is determined for each virtual lightpath. For the VN embedding in EDCNs, the power efficiency is a significant concern, and some solutions were proposed through sleeping light-duty servers.However, the increasing communication traffic between VMs leads to a serious energy dissipation problem, since it also consumes a great amount of energy on switches even utilizing the energy-efficient optical transmission technique. In this paper, considering load balancing and power-efficient VN embedding, we formulate the problem and design a novel heuristic for EDCNs, with the objective to achieve the power savings of servers and switches. In our solution, VMs are mapped into a single DC or multiple DCs with the short distance between each other, and the servers in the same cluster or adjacent clusters are preferred to hold VMs. Such that, a large amount of servers and switches will become vacant and can go into sleep mode. Simulation results demonstrate that our method performs well in terms of power savings and load balancing. Compared with benchmarks, the improvement ratio of power efficiency is 5%–13%. 展开更多
关键词 elastic data center network green virtual network embedding integrated optimization load balancing power efficiency
原文传递
上一页 1 下一页 到第
使用帮助 返回顶部