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Design of an Interconnection Architecture and Sizing of Two (2) EPC Core Networks: The Case of Orange-Guinea
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作者 Mamadou Sadigou Diallo Kadiatou Aissatou Barry +4 位作者 Amadou Lamarana Bah Mamadou Sanoussy Camara Janvier Fotsing Amadou Barry Amadou Oury Bah 《Journal of Energy and Power Engineering》 CAS 2024年第2期59-70,共12页
With the arrival of the 4G and 5G,the telecommunications networks have experienced a large expansion of these networks.That enabled the integration of many services and adequate flow,thus enabling the operators to res... With the arrival of the 4G and 5G,the telecommunications networks have experienced a large expansion of these networks.That enabled the integration of many services and adequate flow,thus enabling the operators to respond to the growing demand of users.This rapid evolution has given the operators to adapt,their methods to the new technologies that increase.This complexity becomes more important,when these networks include several technologies to access different from the heterogeneous network like in the 4G network.The dimensional new challenges tell the application and the considerable increase in demand for services and the compatibility with existing networks,the management of mobility intercellular of users and it offers a better quality of services.Thus,the proposed solution to meet these new requirements is the sizing of the EPC(Evolved Packet Core)core network to support the 5G access network.For the case of Orange Guinea,this involves setting up an architecture for interconnecting the core networks of Sonfonia and Camayenne.The objectives of our work are of two orders:(1)to propose these solutions and recommendations for the heart network EPC sizing and the deployment to be adopted;(2)supply and architectural interconnection in the heart network EPC and an existing heart network.In our work,the model of traffic in communication that we use to calculate the traffic generated with each technology has link in the network of the heart. 展开更多
关键词 5G network 4G network(EPS(evolved packet system)) 3G network(umts:universal Mobile Telecommunications System) EPC network of the heart architecture dimensional Orange Guinea technology service
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Research on College Network Information Security Protection in the Digital Economy Era
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作者 Libin Zhang 《Proceedings of Business and Economic Studies》 2024年第2期132-137,共6页
In the era of the digital economy,the informatization degree of various industries is getting deeper and deeper,and network information security has also come into people’s eyes.Colleges and universities are in the p... In the era of the digital economy,the informatization degree of various industries is getting deeper and deeper,and network information security has also come into people’s eyes.Colleges and universities are in the position of training applied talents,because of the needs of teaching and education,as well as the requirements of teaching reform,the information construction of colleges and universities has been gradually improved,but the problem of network information security is also worth causing people to ponder.The low security of the network environment will cause college network information security leaks,and even hackers will attack the official website of the university and leak the personal information of teachers and students.To solve such problems,this paper studies the protection of college network information security against the background of the digital economy era.This paper first analyzes the significance of network information security protection,then points out the current and moral problems,and finally puts forward specific countermeasures,hoping to create a safe learning environment for teachers and students for reference. 展开更多
关键词 Digital economy Universities and colleges network information security Protection status COUNTERMEASURES
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Research on Risk Prevention and Resolution Strategies of College Network Ideology in the Context of the Internet
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作者 Feifei Huang 《Journal of Contemporary Educational Research》 2024年第5期85-90,共6页
With the rapid development of the Internet,the network ideology of colleges and universities is facing severe challenges.This paper deeply analyzes the root of the risk of network ideology and makes a specific investi... With the rapid development of the Internet,the network ideology of colleges and universities is facing severe challenges.This paper deeply analyzes the root of the risk of network ideology and makes a specific investigation of the status quo of network public opinion in colleges and universities.On this basis,the study explores and puts forward a series of targeted risk prevention and resolution strategies,aiming at providing a systematic solution for the network ideology security of colleges and universities.In this paper,with the combination of theory and practice as the path,we verify the effectiveness and applicability of the proposed strategy through the analysis of the implementation effect of the strategy.This study also provides theoretical support and practical guidance for the prevention and control of ideological risks and public opinion guidance in universities under the network environment,which has important practical significance.With the continuous progress of network technology,the threats to the network ideology of colleges and universities are increasing.For example,the spread of false information has become a serious problem affecting the security of college network ideology. 展开更多
关键词 network ideology Colleges and universities Risk prevention Public opinion management Resolution strategy Theory and practice
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Learning algorithm and application of quantum BP neural networks based on universal quantum gates 被引量:26
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作者 Li Panchi Li Shiyong 《Journal of Systems Engineering and Electronics》 SCIE EI CSCD 2008年第1期167-174,共8页
A quantum BP neural networks model with learning algorithm is proposed. First, based on the universality of single qubit rotation gate and two-qubit controlled-NOT gate, a quantum neuron model is constructed, which is... A quantum BP neural networks model with learning algorithm is proposed. First, based on the universality of single qubit rotation gate and two-qubit controlled-NOT gate, a quantum neuron model is constructed, which is composed of input, phase rotation, aggregation, reversal rotation and output. In this model, the input is described by qubits, and the output is given by the probability of the state in which (1) is observed. The phase rotation and the reversal rotation are performed by the universal quantum gates. Secondly, the quantum BP neural networks model is constructed, in which the output layer and the hide layer are quantum neurons. With the application of the gradient descent algorithm, a learning algorithm of the model is proposed, and the continuity of the model is proved. It is shown that this model and algorithm are superior to the conventional BP networks in three aspects: convergence speed, convergence rate and robustness, by two application examples of pattern recognition and function approximation. 展开更多
关键词 quantum computing universal quantum gate quantum neuron quantum neural networks
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Optimization in Commercial UMTS Network
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作者 Bin Zhou,Chunlei Cai Senior QoS engineer,Motorola 《China Communications》 SCIE CSCD 2007年第2期35-38,共4页
After years’ verification in theory and trial test,the 3G UMTS network has been widely deployed in many countries around the world.This article focuses on the typical problems met during the optimization engineering ... After years’ verification in theory and trial test,the 3G UMTS network has been widely deployed in many countries around the world.This article focuses on the typical problems met during the optimization engineering project, and gives the solution usually used with theoretical analysis at the same time. 展开更多
关键词 3G umts OPTIMIZATION COMMERCIAL network
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Estimation of fracture size and azimuth in the universal elliptical disc model based on trace information 被引量:3
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作者 Jichao Guo Jun Zheng +1 位作者 Qing Lü Jianhui Deng 《Journal of Rock Mechanics and Geotechnical Engineering》 SCIE CSCD 2023年第6期1391-1405,共15页
The geometric characteristics of fractures within a rock mass can be inferred by the data sampling from boreholes or exposed surfaces.Recently,the universal elliptical disc(UED)model was developed to represent natural... The geometric characteristics of fractures within a rock mass can be inferred by the data sampling from boreholes or exposed surfaces.Recently,the universal elliptical disc(UED)model was developed to represent natural fractures,where the fracture is assumed to be an elliptical disc and the fracture orientation,rotation angle,length of the long axis and ratio of short-long axis lengths are considered as variables.This paper aims to estimate the fracture size-and azimuth-related parameters in the UED model based on the trace information from sampling windows.The stereological relationship between the trace length,size-and azimuth-related parameters of the UED model was established,and the formulae of the mean value and standard deviation of trace length were proposed.The proposed formulae were validated via the Monte Carlo simulations with less than 5%of error rate between the calculated and true values.With respect to the estimation of the size-and azimuth-related parameters using the trace length,an optimization method was developed based on the pre-assumed size and azimuth distribution forms.A hypothetical case study was designed to illustrate and verify the parameter estimation method,where three combinations of the sampling windows were used to estimate the parameters,and the results showed that the estimated values could agree well with the true values.Furthermore,a hypothetical three-dimensional(3D)elliptical fracture network was constructed,and the circular disc,non-UED and UED models were used to represent it.The simulated trace information from different models was compared,and the results clearly illustrated the superiority of the proposed UED model over the existing circular disc and non-UED models。 展开更多
关键词 universal elliptical disc(UED)model Rock mass Discrete fracture network(DFN) Optimization algorithm Inverse problem
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Radio Access Selection in Integrated UMTS/WLAN Networks
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作者 I. MODEAS A. KALOXYLOS +2 位作者 G. LAMPROPOULOS N. PASSAS L. MERAKOS 《International Journal of Communications, Network and System Sciences》 2009年第9期805-821,共17页
Heterogeneous networks combine different access technologies. An important problem in such networks is the selection of the most suitable radio access network. To perform this task efficiently, a lot of information is... Heterogeneous networks combine different access technologies. An important problem in such networks is the selection of the most suitable radio access network. To perform this task efficiently, a lot of information is required, such as signal strength, QoS, monetary cost, battery consumption, and user preferences. These are well known issues and a considerable effort has been made to tackle them using a number of solutions. These efforts improve the performance of vertical handover but also add considerable complexity. In this paper, we introduce an enhanced algorithm for radio access network selection, which is simple, flexible and applicable to future mobile systems. Its main characteristics are the distribution of the radio access selection process among the mobile terminal and the core network, the evaluation of mobile terminal connections separately and the primary role of user preferences in the final decision. The performance of the algorithm is evaluated through simulation results, which show that the algorithm provides a high rate of user satisfaction. It decreases the messages required for the vertical handovers in the whole network and it alleviates the core network from the processing of unnecessary requests. 展开更多
关键词 network SELECTION Algorithm HETEROGENEOUS VERTICAL HANDOVER WLAN umts
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Optimization of UMTS Network Planning Using Genetic Algorithms
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作者 Fabio Garzia Cristina Perna Roberto Cusani 《Communications and Network》 2010年第3期193-199,共7页
The continuously growing of cellular networks complexity, which followed the introduction of UMTS technology, has reduced the usefulness of traditional design tools, making them quite unworthy. The purpose of this pap... The continuously growing of cellular networks complexity, which followed the introduction of UMTS technology, has reduced the usefulness of traditional design tools, making them quite unworthy. The purpose of this paper is to illustrate a design tool for UMTS optimized net planning based on genetic algorithms. In particular, some utilities for 3G net designers, useful to respect important aspects (such as the environmental one) of the cellular network, are shown. 展开更多
关键词 umts network PLANNING GENETIC ALGORITHMS
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INFORMATION DESIGN OF UNIVERSAL ADJUSTMENT PROGRAM OF PLANE CONTROL NETWORKS
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作者 Xiang,Nanping(Department of Resources Exploitation Engineering,Central South University of Technology,Changsha 410083) 《中国有色金属学会会刊:英文版》 CSCD 1994年第2期95-97,102,共4页
INFORMATIONDESIGNOFUNIVERSALADJUSTMENTPROGRAMOFPLANECONTROLNETWORKSINFORMATIONDESIGNOFUNIVERSALADJUSTMENTPRO... INFORMATIONDESIGNOFUNIVERSALADJUSTMENTPROGRAMOFPLANECONTROLNETWORKSINFORMATIONDESIGNOFUNIVERSALADJUSTMENTPROGRAMOFPLANECONTRO... 展开更多
关键词 INFORMATION design universal adjustment PLANE CONTROL networkS
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AN EFFICIENT APPROACH FOR DVB-H HANDOVER IN DVB-H/UMTS HYBRID NETWORKS
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作者 Liu Cong Liao Jianxin +2 位作者 Zhu Xiaomin Zhang Huiyuan Ni Ping 《Journal of Electronics(China)》 2008年第5期689-696,共8页
Handover in Digital Video Broadcasting for Handhelds(DVB-H) aims to provide continuous mobile broadcasting services when a user is traveling through cell boundaries.A good handover control can improve the power effici... Handover in Digital Video Broadcasting for Handhelds(DVB-H) aims to provide continuous mobile broadcasting services when a user is traveling through cell boundaries.A good handover control can improve the power efficiency and gain much better reception quality.This letter provides a novel approach for DVB-H handover based on DVB-H/Universal Mobile Telecommunications System(UMTS) hybrid network,which moves the main handover function from the terminals to the networks,so that it reduces the operation complexity of the terminals and increases the power saving.When the terminal can not receive the DVB-H signal in the transmission shadow areas or because of some other reasons,the UMTS networks may offer the same service to users to make the service continuous.As the UMTS networks have the topology of the DVB-H networks,by communicating with the terminals,the UMTS networks can help the terminals to predict the handover,and avoid unnecessary handover. 展开更多
关键词 Digital Video Broadcasting for Handhelds (DVB-H) universal Mobile Telecommunications System umts HANDOVER MOBILE
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Charging Rate, Imposing and Allowancing Range of Universal Service Fund for Network Industries
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作者 Bo Xu Zhongyi Zhao 《Chinese Business Review》 2003年第5期42-49,共8页
Universal service obligation of network industries, such as telecommunication, electric power, post, railway, and aviation, has greatly hampered the progress of their marketization reform. Establishing universal servi... Universal service obligation of network industries, such as telecommunication, electric power, post, railway, and aviation, has greatly hampered the progress of their marketization reform. Establishing universal service fund could be an efficient solution. This paper provides a method to calculate the charging rate, imposing and allowancing range of universal service fund for network industries, it also proves the feasibility of accomplishing universal service through universal service fund in network industries. 展开更多
关键词 universal service fund industry network
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A Universal Activation Function for Deep Learning
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作者 Seung-Yeon Hwang Jeong-Joon Kim 《Computers, Materials & Continua》 SCIE EI 2023年第5期3553-3569,共17页
Recently,deep learning has achieved remarkable results in fields that require human cognitive ability,learning ability,and reasoning ability.Activation functions are very important because they provide the ability of ... Recently,deep learning has achieved remarkable results in fields that require human cognitive ability,learning ability,and reasoning ability.Activation functions are very important because they provide the ability of artificial neural networks to learn complex patterns through nonlinearity.Various activation functions are being studied to solve problems such as vanishing gradients and dying nodes that may occur in the deep learning process.However,it takes a lot of time and effort for researchers to use the existing activation function in their research.Therefore,in this paper,we propose a universal activation function(UA)so that researchers can easily create and apply various activation functions and improve the performance of neural networks.UA can generate new types of activation functions as well as functions like traditional activation functions by properly adjusting three hyperparameters.The famous Convolutional Neural Network(CNN)and benchmark datasetwere used to evaluate the experimental performance of the UA proposed in this study.We compared the performance of the artificial neural network to which the traditional activation function is applied and the artificial neural network to which theUA is applied.In addition,we evaluated the performance of the new activation function generated by adjusting the hyperparameters of theUA.The experimental performance evaluation results showed that the classification performance of CNNs improved by up to 5%through the UA,although most of them showed similar performance to the traditional activation function. 展开更多
关键词 Deep learning activation function convolutional neural network benchmark datasets universal activation function
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全光网在高校数据中心网络中的应用与性能评估 被引量:2
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作者 聂巍 《办公自动化》 2024年第3期30-32,共3页
随着高校数据中心网络规模的不断扩大和应用需求的增加,全光网作为一种高带宽、低延迟的网络技术,逐渐在高校数据中心网络中得到应用。文章针对全光网在高校数据中心网络中的应用与性能评估进行了研究。首先介绍了全光网的概念和特点,... 随着高校数据中心网络规模的不断扩大和应用需求的增加,全光网作为一种高带宽、低延迟的网络技术,逐渐在高校数据中心网络中得到应用。文章针对全光网在高校数据中心网络中的应用与性能评估进行了研究。首先介绍了全光网的概念和特点,以及高校数据中心网络的需求和挑战。然后重点探讨了全光网在高校数据中心网络中的应用,包括拓扑结构设计、传输技术应用以及设备选型和部署。接着介绍了全光网在高校数据中心网络中的性能评估,包括评估指标、评估方法和实验设计,并给出了实验结果和分析。最后对研究工作进行了总结,并展望了未来的研究方向。 展开更多
关键词 全光网 高校数据中心网络 应用 性能评估
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欠发达地区高校网络安全人才培养研究——基于CTF竞赛
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作者 胡忠旭 常凤 +2 位作者 徐小华 张子锋 陈冬 《云南民族大学学报(自然科学版)》 CAS 2024年第5期666-670,共5页
以目前关注度比较高的CTF竞赛为切入点,通过将CTF竞赛相关技能需求与课程知识融合、组建CTF团队、开展CTF竞赛等,引领教师、学生更积极的学习相关课程并将其在CTF平台上实践,可助力欠发达地区高校在网络信息安全人才培养上克服一定的困... 以目前关注度比较高的CTF竞赛为切入点,通过将CTF竞赛相关技能需求与课程知识融合、组建CTF团队、开展CTF竞赛等,引领教师、学生更积极的学习相关课程并将其在CTF平台上实践,可助力欠发达地区高校在网络信息安全人才培养上克服一定的困难,走上教育质量可持续提升的发展之路. 展开更多
关键词 欠发达地区高校 网络信息安全 CTF竞赛 人才培养
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基于LDA主题模型的“双一流”高校图书馆用户评论文本数据挖掘 被引量:1
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作者 张文德 徐子杨 赵立红 《情报探索》 2024年第7期120-127,共8页
[目的/意义]图书馆用户评论中包含用户对图书馆服务和管理意见的重要信息,对用户评论文本进行深度挖掘,旨在探究用户关心主题及其情感态度、隐含诉求,为高校图书馆建设提供理论依据和数据支持。[方法/过程]以“双一流”高校图书馆为研... [目的/意义]图书馆用户评论中包含用户对图书馆服务和管理意见的重要信息,对用户评论文本进行深度挖掘,旨在探究用户关心主题及其情感态度、隐含诉求,为高校图书馆建设提供理论依据和数据支持。[方法/过程]以“双一流”高校图书馆为研究对象,收集用户在大众点评网上的评论数据,通过LDA主题建模,得到当前用户评论主要集中在信息资源建设、娱乐休闲服务、馆内设施环境三个维度,进而分别分析三个维度下的关键词共现网络和用户情感态度。[结果/结论]用户对高校图书馆的总体情感态度是积极正向的,但在纸质资源管理、社会化服务、馆内人性化服务等方面表现出负面情绪。 展开更多
关键词 高校图书馆 用户评论 LDA主题分析 共现网络 情感分析
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基于蝉变模型的产学研合作风险机制分析和评估
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作者 卢意 雷仲魁 +1 位作者 曹元军 朱鸿翔 《泰州职业技术学院学报》 2024年第1期37-41,56,共6页
为了准确评估产学研合作中的风险,基于蝉变模型构建了一套产学研合作中的风险预控机制。通过调查研究发现知识认可度不足、知识共享度不充分、知识成果转化率低和知识成果应用的不确定性是合作中风险形成的主要因素。将合作过程节点化,... 为了准确评估产学研合作中的风险,基于蝉变模型构建了一套产学研合作中的风险预控机制。通过调查研究发现知识认可度不足、知识共享度不充分、知识成果转化率低和知识成果应用的不确定性是合作中风险形成的主要因素。将合作过程节点化,将合作联盟的主体孤立化,使用德尔菲法,构建产学研合作风险评价的指标体系。通过分析比较,选择BP神经网络作为合作风险评估法,利用MATLAB软件处理输入输出的风险指标,形成风险级别的评价模型,并用实例进行验证。 展开更多
关键词 蝉变模型 产学研 风险 德尔菲法 BP神经网络
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高校网络意识形态领域风险防范化解机制研究
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作者 江腾飞 《湖北开放职业学院学报》 2024年第9期133-135,共3页
本文主要通过对国内外相关文献的查阅,高校网络意识形态工作相关对象访谈,并结合自身在高校教育管理、学生管理、网络宣传等方面的管理工作经验,对网络意识形态可能存在的风险点进行梳理,提出防范、化解高校网络意识形态风险的体制机制... 本文主要通过对国内外相关文献的查阅,高校网络意识形态工作相关对象访谈,并结合自身在高校教育管理、学生管理、网络宣传等方面的管理工作经验,对网络意识形态可能存在的风险点进行梳理,提出防范、化解高校网络意识形态风险的体制机制的具体做法和建议。 展开更多
关键词 高校 网络意识形态 风险防范化解
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高校裸聊诈骗的心理成因与防范对策——基于隐私暴露视角的分析
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作者 叶卫树 周鑫磊 桂劲松 《浙江万里学院学报》 2024年第1期54-60,共7页
文章从隐私暴露的视角,基于知、情、意心理结构,构建了高校裸聊诈骗发生机理的分析框架。从认知角度来看,高校裸聊诈骗是信息不对称引起的意志迷失。从情感角度来看,高校裸聊诈骗的发生是由于情感匮乏导致的欲望放逐。从意志角度来看,... 文章从隐私暴露的视角,基于知、情、意心理结构,构建了高校裸聊诈骗发生机理的分析框架。从认知角度来看,高校裸聊诈骗是信息不对称引起的意志迷失。从情感角度来看,高校裸聊诈骗的发生是由于情感匮乏导致的欲望放逐。从意志角度来看,盲目的生命意志冲动是导致大学生隐私暴露而被骗的直接原因。基于上述3个因素,文章提出了以知育人、以情育人、以志育人的心理教育对策,旨在提高包括裸聊在内的电信网络诈骗防控机制的科学精准性和实践针对性。 展开更多
关键词 高校 隐私暴露 电信网络诈骗 裸聊诈骗
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高校网络文化的育人功能及实现路径
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作者 何建新 《船舶职业教育》 2024年第4期71-73,共3页
高校网络文化是现代高等教育的重要组成部分,对提高学生的育人功能具有重要意义。在分析高校网络文化育人功能及面临困境的基础上,探究实现高校网络文化育人功能的具体路径:加强社会主义核心价值观教育;加强高校网络文化管理机制建设;... 高校网络文化是现代高等教育的重要组成部分,对提高学生的育人功能具有重要意义。在分析高校网络文化育人功能及面临困境的基础上,探究实现高校网络文化育人功能的具体路径:加强社会主义核心价值观教育;加强高校网络文化管理机制建设;提高高校网络文化作品的吸引力;提高网络文化育人队伍水平,以促进学生的全面发展。 展开更多
关键词 高校 网络文化 育人功能
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影响高校党建资源效能提升的影响因素研究
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作者 王鹤春 李鑫 +2 位作者 刘新梅 马甜甜 赵天琪 《赤峰学院学报(哲学社会科学版)》 2024年第8期81-85,共5页
论文采用实证研究方法,对如何提升党建资源效能的问题展开研究,研究表明:显性资源、隐性资源、战略资源、政策影响与组织网络是影响高校党建资源效能的关键因素。根据研究结论,论文提出促进“高校党建资源效能提升”的对策。论文研究成... 论文采用实证研究方法,对如何提升党建资源效能的问题展开研究,研究表明:显性资源、隐性资源、战略资源、政策影响与组织网络是影响高校党建资源效能的关键因素。根据研究结论,论文提出促进“高校党建资源效能提升”的对策。论文研究成果可以为我国高校综合实力提升,提供智力支持与决策借鉴。 展开更多
关键词 高校党建 资源 效能 组织网络
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