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Analysis of Mobile and Internet Network Coverage: Propagation of Electromagnetic Waves and Concept of Digital Divide in Burundi
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作者 Apollinaire Bigirimana Jérémie Ndikumagenge +2 位作者 Sami Tabbane Romeo Nibitanga Hassan Kibeya 《Open Journal of Antennas and Propagation》 2024年第1期1-18,共18页
Mobile and Internet network coverage plays an important role in digital transformation and the exploitation of new services. The evolution of mobile networks from the first generation (1G) to the 5th generation is sti... Mobile and Internet network coverage plays an important role in digital transformation and the exploitation of new services. The evolution of mobile networks from the first generation (1G) to the 5th generation is still a long process. 2G networks have developed the messaging service, which complements the already operational voice service. 2G technology has rapidly progressed to the third generation (3G), incorporating multimedia data transmission techniques. It then progressed to fourth generation (4G) and LTE (Long Term Evolution), increasing the transmission speed to improve 3G. Currently, developed countries have already moved to 5G. In developing countries, including Burundi, a member of the East African Community (ECA) where more than 80% are connected to 2G technologies, 40% are connected to the 3G network and 25% to the 4G network and are not yet connected to the 5G network and then still a process. The objective of this article is to analyze the coverage of 2G, 3G and 4G networks in Burundi. This analysis will make it possible to identify possible deficits in order to reduce the digital divide between connected urban areas and remote rural areas. Furthermore, this analysis will draw the attention of decision-makers to the need to deploy networks and coverage to allow the population to access mobile and Internet services and thus enable the digitalization of the population. Finally, this article shows the level of coverage, the digital divide and an overview of the deployment of base stations (BTS) throughout the country to promote the transformation and digital inclusion of services. 展开更多
关键词 Coverage of Mobile networks and internet Digital Divide Rural and Isolated Areas Antenna Connectivity and Digital Inclusion
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Mobile Ad Hoc Network与Internet互联的技术研究 被引量:3
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作者 胡中功 邹莉 沈斌 《武汉科技学院学报》 2005年第6期65-69,共5页
分析了移动IP和AODV协议的工作机理,对MANET与Internet互联的关键技术,包括协议转换、地址分配、网关发现、路由发现与数据传输等问题进行了详细的讨论,并对今后的研究工作进行了展望。
关键词 Mobile AD HOC network internet 移动IP AODV路由协议
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Smart Service System(SSS):A Novel Architecture Enabling Coordination of Heterogeneous Networking Technologies and Devices for Internet of Things 被引量:6
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作者 yongan guo hongbo zhu longxiang yang 《China Communications》 SCIE CSCD 2017年第3期130-144,共15页
In Internet of Things(IoT), the devices or terminals are connected with each other, which can be very diverse over the wireless networks. Unfortunately, the current devices are not designed to communicate with the col... In Internet of Things(IoT), the devices or terminals are connected with each other, which can be very diverse over the wireless networks. Unfortunately, the current devices are not designed to communicate with the collocated devices which employ different communication technologies. Consequently, the communication between these devices will be realized only by using the gateway nodes. This will cause the inefficient use of wireless resources. Therefore, in this paper, a smart service system(SSS) architecture is proposed, which consists of smart service terminal(SST), and smart service network(SSN), to realize the Io T in a general environment with diverse communication networks, devices, and services. The proposed architecture has the following advantages: i) the devices in this architecture cover multiple types of terminals and sensor-actuator devices; ii) the communications network therein is a converged network, and will coordinate multiple kinds of existing and emerging networks. This converged network offers ubiquitous access for various sensors and terminals; iii) the architecture has services and applications covering all smart service areas. It also provides theadaptability to new services and applications. A SSS architecture-based smart campus system was developed and deployed. Evaluation experiments of the proposed smart campus system demonstrate the SSS's advantages over the existing counterparts, and verify the effectiveness of the proposed architecture. 展开更多
关键词 internet of Things network architecture clean slate evolutionary approach network heterogeneity reconfiguration
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Internet as a Growing and Dynamic Network: An Economic View 被引量:1
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作者 Pasquale Lucio Scandizzo Alessandra Imperiali 《Communications and Network》 2014年第2期69-75,共7页
The past few decades have witnessed renewed interest and research efforts on the part of the scientific community. After spending decades to disassemble nature, focusing the attention on its components, scientists hav... The past few decades have witnessed renewed interest and research efforts on the part of the scientific community. After spending decades to disassemble nature, focusing the attention on its components, scientists have shifted their attention on complex networks. These basic structures constitute a wide range of systems in nature and society, but their design is irregular, evolves dynamically over time and their components can fit in a large multiplicity of alternative ways. Nevertheless, the most recent studies of networks have made remarkable progresses by investigating some critical issues of structure and dynamics, thereby improving the understanding of the topology and the growth processes of complex networks. From an economic point of view, networks are especially interesting because they can be considered as a problem of allocation of a critical resource, information, under multiple constraints. They can also be viewed as forms of poliarchies that reproduce, for many aspects, the market paradigm, with surprising properties of self-organization and resilience, which go much beyond the characteristics that are generally attributed to general equilibrium structures. In this paper we first address the major results achieved in the study of complex network and then focus our attention on two specific, highly dynamic and complex networks: Internet and the World Wide Web. 展开更多
关键词 network ANALYSIS internet SOCIAL networkS
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A Possible Development of Marine Internet: A Large Scale Cooperative Heterogeneous Wireless Network 被引量:3
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作者 Shengming Jiang Huihui Chen 《通讯和计算机(中英文版)》 2015年第4期199-211,共13页
关键词 互联网接入 异构无线网络 海洋环境 合作 水下系统 成本效益 地面网络 网络服务
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A network condition classification scheme for supporting video delivery over wireless Internet*
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作者 CHAN Siu-ping SUN Ming-ting 《Journal of Zhejiang University-Science A(Applied Physics & Engineering)》 SCIE EI CAS CSCD 2006年第5期794-800,共7页
Real-time video transport over wireless Internet faces many challenges due to the heterogeneous environment including wireline and wireless networks. A robust network condition classification algorithm using multiple ... Real-time video transport over wireless Internet faces many challenges due to the heterogeneous environment including wireline and wireless networks. A robust network condition classification algorithm using multiple end-to-end metrics and Support Vector Machine (SVM) is proposed to classify different network events and model the transition pattern of network conditions. End-to-end Quality-of-Service (QoS) mechanisms like congestion control, error control, and power control can benefit from the network condition information and react to different network situations appropriately. The proposed network condition classifica- tion algorithm uses SVM as a classifier to cluster different end-to-end metrics such as end-to-end delay, delay jitter, throughput and packet loss-rate for the UDP traffic with TCP-friendly Rate Control (TFRC), which is used for video transport. The algorithm is also flexible for classifying different numbers of states representing different levels of network events such as wireline congestion and wireless channel loss. Simulation results using network simulator 2 (ns2) showed the effectiveness of the proposed scheme. 展开更多
关键词 VIDEO transport END-TO-END QoS Wireless internet network CONDITION classification Support VECTOR Machine(SVM)
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Performance Evaluation of an Internet Protocol Security (IPSec) Based Multiprotocol Label Switching (MPLS) Virtual Private Network 被引量:3
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作者 Conrad K. Simatimbe Smart Charles Lubobya 《Journal of Computer and Communications》 2020年第9期100-108,共9页
This paper evaluates the performance of Internet Protocol Security (IPSec) based Multiprotocol Label Switching (MPLS) virtual private network (VPN) in a small to medium sized organization. The demand for security in d... This paper evaluates the performance of Internet Protocol Security (IPSec) based Multiprotocol Label Switching (MPLS) virtual private network (VPN) in a small to medium sized organization. The demand for security in data networks has been increasing owing to the high cyber attacks and potential risks associated with networks spread over distant geographical locations. The MPLS networks ride on the public network backbone that is porous and highly susceptible to attacks and so the need for reliable security mechanisms to be part of the deployment plan. The evaluation criteria concentrated on Voice over Internet Protocol (VoIP) and Video conferencing with keen interest in jitter, end to end delivery and general data flow. This study used both structured questionnaire and observation methods. The structured questionnaire was administered to a group of 70 VPN users in a company. This provided the study with precise responses. The observation method was used in data simulations using OPNET Version 14.5 Simulation software. The results show that the IPSec features increase the size of data packets by approximately 9.98% translating into approximately 90.02% effectiveness. The tests showed that the performance metrics are all well within the recommended standards. The IPSec Based MPLS Virtual private network is more stable and secure than one without IPSec. 展开更多
关键词 Multiprotocol Label Switching internet Protocol Security Virtual Private network Video Conferencing Voice over internet Protocol JITTER End to End Delay
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Coordinated and Balanced Growth Between Telecom Networks and Internet
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作者 Xu Heyuan (Institute of Communication Standards Research, China Academy of Telecommunication Research, MIIT, Beijing 100045, P.R.China) 《ZTE Communications》 2008年第4期6-10,共5页
As two existing networks, the telecom network and the Internet differ greatly in terms of business patterns, service quality, security and regulations, whilst technical development makes services provided by the two n... As two existing networks, the telecom network and the Internet differ greatly in terms of business patterns, service quality, security and regulations, whilst technical development makes services provided by the two networks penetrate each other. This article describes the status quo of the telecom network and the Internet as well as the problems faced by each of them, analyzes the causes of those problems, and makes suggestions on coordinated and balanced development of the telecom network and the Internet. 展开更多
关键词 NGN ITU As Coordinated and Balanced Growth Between Telecom networks and internet
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Internet and Telecom Network Technologies Study
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作者 Jiang Lintao (China Academy of Telecommunication Research of MIIT, Beijing 100083, P. R. China) 《ZTE Communications》 2008年第4期1-5,共5页
The existing Internet technologies and the original Internet design concept cannot meet the requirement of development, due to the fast development of the Internet, great changes of the Internet user groups and the tr... The existing Internet technologies and the original Internet design concept cannot meet the requirement of development, due to the fast development of the Internet, great changes of the Internet user groups and the tremendous transformation of the Internet external environment. The Internet is at a development crossroad; and its direction of development has attracted great attention from the world. On the other hand, the telecom industry is in a rather passive position as the result of the great impact the Internet technology has posted on it. The telecom industry has failed in defining its own developing direction and technology breakthrough; therefore, it is also at a crossroad. The development of both the Internet and the telecom networks will lead to the development of Next Generation Network (NGN) technologies. Industrial attention and research should be focused on the key NGN technologies, solutions to problems in the development of these technologies, and their commercialization in a short term. 展开更多
关键词 internet and Telecom network Technologies Study
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A Novel Load Balancing Strategy of Software-Defined Cloud/Fog Networking in the Internet of Vehicles 被引量:13
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作者 Xiuli He Zhiyuan Ren +1 位作者 Chenhua Shi Jian Fang 《China Communications》 SCIE CSCD 2016年第S2期140-149,共10页
The Internet of Vehicles(IoV)has been widely researched in recent years,and cloud computing has been one of the key technologies in the IoV.Although cloud computing provides high performance compute,storage and networ... The Internet of Vehicles(IoV)has been widely researched in recent years,and cloud computing has been one of the key technologies in the IoV.Although cloud computing provides high performance compute,storage and networking services,the IoV still suffers with high processing latency,less mobility support and location awareness.In this paper,we integrate fog computing and software defined networking(SDN) to address those problems.Fog computing extends computing and storing to the edge of the network,which could decrease latency remarkably in addition to enable mobility support and location awareness.Meanwhile,SDN provides flexible centralized control and global knowledge to the network.In order to apply the software defined cloud/fog networking(SDCFN) architecture in the IoV effectively,we propose a novel SDN-based modified constrained optimization particle swarm optimization(MPSO-CO) algorithm which uses the reverse of the flight of mutation particles and linear decrease inertia weight to enhance the performance of constrained optimization particle swarm optimization(PSO-CO).The simulation results indicate that the SDN-based MPSO-CO algorithm could effectively decrease the latency and improve the quality of service(QoS) in the SDCFN architecture. 展开更多
关键词 internet of vehicles cloud computing cloud/fog network software defined networking load balancing
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A Dual-Channel Secure Transmission Scheme for Internet-Based Networked Control Systems
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作者 田德振 戴亚平 +1 位作者 胡敬炉 平泽宏太郎 《Journal of Beijing Institute of Technology》 EI CAS 2010年第2期183-190,共8页
Two significant issues in Internet-based networked control systems ( INCSs), transport performance of different protocols and security breach from Internet side, are investigated. First, for improving the performanc... Two significant issues in Internet-based networked control systems ( INCSs), transport performance of different protocols and security breach from Internet side, are investigated. First, for improving the performance of data transmission, user datagram protocol (UDP) is adopted as the main stand for controllers and plants using INCSs. Second, a dual-channel secure transmission scheme (DCSTS)based on data transmission characteristics of INCSs is proposed, in which a raw UDP channel and a secure TCP (transmission control protocol) connection making use of SSL/TLS (secure sockets layer/transport layer security) are included. Further, a networked control protocol (NCP) at application layer for supporting DCSTS between the controllers and plants in INCSs is designed, and it also aims at providing a universal communication mechanism for interoperability of devices among the networked control laboratories in Beijing Institute of Technology of China, Central South University of China and Tokyo University of Technology of Japan. By means of a networked single-degree-of-free- dom robot arm, an INCS under the new protocol and security environment is created. Compared with systems such as IPSec or SSL/TLS, which may cause more than 91% network throughput deduction, the new DCSTS protocol may yield results ten times better, being just 5.67%. 展开更多
关键词 internet-based networked control system (INCS) networked control protocol(NCP) dual-channel secure transmission scheme(DCSTS)
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Identification and Prediction of Internet Traffic Using Artificial Neural Networks 被引量:7
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作者 Samira Chabaa Abdelouhab Zeroual Jilali Antari 《Journal of Intelligent Learning Systems and Applications》 2010年第3期147-155,共9页
This paper presents the development of an artificial neural network (ANN) model based on the multi-layer perceptron (MLP) for analyzing internet traffic data over IP networks. We applied the ANN to analyze a time seri... This paper presents the development of an artificial neural network (ANN) model based on the multi-layer perceptron (MLP) for analyzing internet traffic data over IP networks. We applied the ANN to analyze a time series of measured data for network response evaluation. For this reason, we used the input and output data of an internet traffic over IP networks to identify the ANN model, and we studied the performance of some training algorithms used to estimate the weights of the neuron. The comparison between some training algorithms demonstrates the efficiency and the accu-racy of the Levenberg-Marquardt (LM) and the Resilient back propagation (Rp) algorithms in term of statistical crite-ria. Consequently, the obtained results show that the developed models, using the LM and the Rp algorithms, can successfully be used for analyzing internet traffic over IP networks, and can be applied as an excellent and fundamental tool for the management of the internet traffic at different times. 展开更多
关键词 Artificial NEURAL network MULTI-LAYER PERCEPTRON TRAINING Algorithms internet TRAFFIC
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An Intrusion Detection System on The Internet of Things Using Deep Learning and Multi-objective Enhanced Gorilla Troops Optimizer
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作者 Hossein Asgharzadeh Ali Ghaffari +1 位作者 Mohammad Masdari Farhad Soleimanian Gharehchopogh 《Journal of Bionic Engineering》 CSCD 2024年第5期2658-2684,共27页
In recent years,developed Intrusion Detection Systems(IDSs)perform a vital function in improving security and anomaly detection.The effectiveness of deep learning-based methods has been proven in extracting better fea... In recent years,developed Intrusion Detection Systems(IDSs)perform a vital function in improving security and anomaly detection.The effectiveness of deep learning-based methods has been proven in extracting better features and more accurate classification than other methods.In this paper,a feature extraction with convolutional neural network on Internet of Things(IoT)called FECNNIoT is designed and implemented to better detect anomalies on the IoT.Also,a binary multi-objective enhance of the Gorilla troops optimizer called BMEGTO is developed for effective feature selection.Finally,the combination of FECNNIoT and BMEGTO and KNN algorithm-based classification technique has led to the presentation of a hybrid method called CNN-BMEGTO-KNN.In the next step,the proposed model is implemented on two benchmark data sets,NSL-KDD and TON-IoT and tested regarding the accuracy,precision,recall,and Fl-score criteria.The proposed CNN-BMEGTO-KNN model has reached 99.99%and 99.86%accuracy on TON-IoT and NSL-KDD datasets,respectively.In addition,the proposed BMEGTO method can identify about 27%and 25%of the effective features of the NSL-KDD and TON-IoT datasets,respectively. 展开更多
关键词 Intrusion detection internet of Things-Convolutional neural network MULTI-OBJECTIVE Gorilla troops optimizer
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The Application of Artificial Neural Network in Assessing Chinese Mobile Internet Service
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作者 Zhu Jiachuan 《学术界》 CSSCI 北大核心 2014年第6期282-288,共7页
This paper pays its attention on Chinese mobile Internet service( MIS). Chinese MIS is developing so rapidly that the research on the mechanism of the formation of MIS assessment makes significant sense and therefore ... This paper pays its attention on Chinese mobile Internet service( MIS). Chinese MIS is developing so rapidly that the research on the mechanism of the formation of MIS assessment makes significant sense and therefore the three layers construct of the artificial neural network( ANN) theory is applied to address the problem. The final research model contains MIS features including personalization,localization,reachability,connectivity,convenience and ubiquity as the input layer variables,perceived MIS quality and MIS satisfaction as the hidden layer variables and reuse intention as the output layer variable. MIS risk is identified as the mediating variable. Theoretically,the framework is robust and reveals the mechanism of how customers evaluate a certain mobile Internet service. Practically,the model based on ANN should shed some light on how to understand and improve customer perceived mobile Internet service for both MIS giants and new comers. 展开更多
关键词 人工神经网络 互联网服务 质量管理信息系统 移动 中国 应用 评估 MIS
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未来网络产业:技术演进、大国竞争与发展路径 被引量:7
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作者 渠慎宁 《改革》 北大核心 2025年第1期81-92,共12页
以6G与卫星互联网为代表的未来网络产业不仅是未来产业发展的重点领域,而且是网络强国建设的重要保障。经历了从1G到5G的技术演进后,6G作为下一代移动通信主导技术,不仅具有更高的性能指标,还将开启“万物智联”新时代。卫星互联网作为... 以6G与卫星互联网为代表的未来网络产业不仅是未来产业发展的重点领域,而且是网络强国建设的重要保障。经历了从1G到5G的技术演进后,6G作为下一代移动通信主导技术,不仅具有更高的性能指标,还将开启“万物智联”新时代。卫星互联网作为卫星通信的最新演进载体,已被视为提供大规模数据传输服务的新手段,有望解决现有通信网络的瓶颈问题。未来网络产业具有巨大的产业空间和市场潜力,6G不仅能打造“新型感知经济”,还将通过数字孪生赋能实体经济,卫星互联网的商业与国防军事价值正日益凸显。当前,世界主要大国均意识到未来网络技术对经济、社会、国家安全乃至国际地位的重要影响,纷纷加紧布局力求抢占技术高点与竞争先机。我国应加大重视力度,增加未来网络领域的研发投入,着力构建未来网络的行业标准,打造安全可控的未来网络产业链,加快未来网络产业的应用落地和场景推广,以此快速推进未来网络产业发展。 展开更多
关键词 未来产业 未来网络 6G 卫星互联网 数字孪生
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速率自适应的海面物联网跨层机会传输协议 被引量:1
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作者 赵瑞琴 张东健 +2 位作者 全豪 刘创源 王海燕 《控制与决策》 北大核心 2025年第1期180-186,共7页
海面物联网在海洋观测、海域监测等应用中发挥着重要作用.复杂动态海洋环境造成海洋网络链路状态、链路质量的时变特征,且其给海面物联网带来了严峻挑战,为此,将物理层自适应数据速率、媒体访问控制(MAC)层载波侦听多址接入与网络层机... 海面物联网在海洋观测、海域监测等应用中发挥着重要作用.复杂动态海洋环境造成海洋网络链路状态、链路质量的时变特征,且其给海面物联网带来了严峻挑战,为此,将物理层自适应数据速率、媒体访问控制(MAC)层载波侦听多址接入与网络层机会路由联合进行跨层设计,提出速率自适应海面物联网跨层传输协议,通过3次握手机制机会性选择最佳转发结点并基于动态信噪比实现传输速率实时自适应调整,旨在提高动态复杂海洋环境下海面物联网的稳健性.陆地和湖上试验结果表明,所提协议在数据包交付率、能耗与时延方面性能优异,可为复杂动态海洋环境中海面物联网数据的高效传输提供重要的技术途径. 展开更多
关键词 海洋 物联网 机会路由 网络 速率自适应 LoRa 海洋链路
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车联网边缘计算环境下基于流量预测的高效任务卸载策略研究 被引量:1
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作者 许小龙 杨威 +4 位作者 杨辰翊 程勇 齐连永 项昊龙 窦万春 《电子学报》 北大核心 2025年第2期329-343,共15页
车联网(Internet of Vehicles,IoV)边缘计算通过将移动边缘计算和车联网相结合,实现了车辆计算任务从云服务器向边缘服务器的下沉,从而有效降低了车联网服务的响应时延.然而,车联网中不规则的交通流时空分布会导致边缘服务器计算负载不... 车联网(Internet of Vehicles,IoV)边缘计算通过将移动边缘计算和车联网相结合,实现了车辆计算任务从云服务器向边缘服务器的下沉,从而有效降低了车联网服务的响应时延.然而,车联网中不规则的交通流时空分布会导致边缘服务器计算负载不均衡,进而影响车联网服务的实时响应.为此,本文提出了一种车联网边缘计算环境下基于流量预测的高效任务卸载策略.具体而言,首先设计了能充分挖掘路段间连通性和距离信息的切比雪夫图加权网络(Chebyshev graph Weighted Network,ChebWN)进行交通流量预测.然后,设计了一种基于深度强化学习的二元任务卸载方法(DRL-based Binary task Offloading Algorithm,DBOA),该算法将二元任务卸载的决策过程分为两个阶段,即首先通过深度强化学习得到卸载策略,再通过一维双端查找算法确定最大化总计算速率的时间片分配方案,降低了决策过程的复杂度.最后,通过大量的对比实验验证了ChebWN在预测交通流量方面的准确性,以及DBOA在提升车联网服务响应速度方面的优越性. 展开更多
关键词 移动边缘计算 深度强化学习 车联网 图神经网络(GNN) 任务卸载
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物联网的网络安全技术分析 被引量:1
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作者 刘谦 唐俊涛 《软件》 2025年第5期163-165,共3页
本文以物联网安全为着眼点,从技术角度出发,分析可服务物联网安全管理的技术以及其应用方式。首先,论述了物联网对网络安全技术的要求;其次,研究了可用安全技术,并以智能防火墙为例,探讨该技术的具体应用方法,就其框架搭建、工作逻辑选... 本文以物联网安全为着眼点,从技术角度出发,分析可服务物联网安全管理的技术以及其应用方式。首先,论述了物联网对网络安全技术的要求;其次,研究了可用安全技术,并以智能防火墙为例,探讨该技术的具体应用方法,就其框架搭建、工作逻辑选择、数据库管理以及辅助技术应用等进行了探讨;最后,结合某企业的物联网工作系统进行了模拟测试,以对比的方式,对智能防火墙的应用效益进行了评估,以期服务于后续技术应用以及物联网管理有关活动。 展开更多
关键词 物联网 网络安全 智能防火墙 工作逻辑
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A Review of Artificial Intelligence Applications in Contemporary Computer Network Technologies
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作者 Ackim Lutepo Kai Zhang 《Communications and Network》 2024年第3期90-107,共18页
Rapid advancement in science and technology has seen computer network technology being upgraded constantly, and computer technology, in particular, has been applied more and more extensively, which has brought conveni... Rapid advancement in science and technology has seen computer network technology being upgraded constantly, and computer technology, in particular, has been applied more and more extensively, which has brought convenience to people’s lives. The number of people using the internet around the globe has also increased significantly, exerting a profound influence on artificial intelligence. Further, the constant upgrading and development of artificial intelligence has led to the continuous innovation and improvement of computer technology. Countries around the world have also registered an increase in investment, paying more attention to artificial intelligence. Through an analysis of the current development situation and the existing applications of artificial intelligence, this paper explicates the role of artificial intelligence in the face of the unceasing expansion of computer network technology. 展开更多
关键词 Artificial Intelligence network Technology internet of Things (IoT) CYBERSECURITY Mobile Communication
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采用卷积神经网络的室内可见光定位方法 被引量:1
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作者 王亮 孙海燕 《导航定位学报》 北大核心 2025年第1期128-136,共9页
针对多径反射与系统噪声导致室内可见光定位精度下降的问题,提出一种基于扩张卷积网络的室内可见光三维定位方法:基于皮尔森相关性系数对采集的接收信号强度向量进行过滤,删除系统噪声引起的非线性失真接收信号强度向量,以提高训练的神... 针对多径反射与系统噪声导致室内可见光定位精度下降的问题,提出一种基于扩张卷积网络的室内可见光三维定位方法:基于皮尔森相关性系数对采集的接收信号强度向量进行过滤,删除系统噪声引起的非线性失真接收信号强度向量,以提高训练的神经网络精度;然后,将接收信号强度向量集建立的指纹库传入神经网络进行训练,利用神经网络较强的三维空间结构表达能力拟合多径反射和系统噪声下的非线性指纹库。仿真结果表明,在7 m×7 m×3 m的室内环境下,所提方法的平均定位误差可达0.91 cm,其中90%样本的定位误差小于1.17 cm;此外,所提方法的平均定位误差较全连接神经网络和卷积神经网络可分别降低0.82 cm和0.56 cm,证明所提方法在多径反射与系统噪声环境下具有较好的定位性能。 展开更多
关键词 可见光通信系统 室内定位 物联网 卷积神经网络(CNN) 可见光定位
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