发布求助
文献互助 智能选刊 最新文献

2021 2nd Information Communication Technologies Conference (ICTC)最新文献

筛选
英文 中文
MTS-HMM for Rolling Bearing Health State Assessment 滚动轴承健康状态评估的MTS-HMM
2021 2nd Information Communication Technologies Conference (ICTC) Pub Date : 2021-05-07 DOI: 10.1109/ICTC51749.2021.9441645
Qi-Feng Yao, Longsheng Cheng, Xiangjin Dong, Wenzhao Bian
{"title":"MTS-HMM for Rolling Bearing Health State Assessment","authors":"Qi-Feng Yao, Longsheng Cheng, Xiangjin Dong, Wenzhao Bian","doi":"10.1109/ICTC51749.2021.9441645","DOIUrl":"https://doi.org/10.1109/ICTC51749.2021.9441645","url":null,"abstract":"Health state assessment is a key technology for system Prognostic and Health Management (PHM) and an important basis for remaining useful life prediction and maintenance decision-making. Rolling bearings are key components of rotating machinery equipment and also one of the most vulnerable components. It has important theoretical and practical significance to evaluate the health state of rolling bearings. In this paper, the empirical mode decomposition (EMD) method is used to extract the vibration signal characteristics of rolling bearings, the dimension of the features is reduced by Mahalanobis-Taguchi system (MTS), and a Hidden Markov Model (HMM) is combined with Mahalanobis distance (MD) to complete health state assessment of rolling bearings. The experimental bearing life cycle data set provided by the Intelligent Maintenance Center of the University of Cincinnati is selected to verify the effectiveness of the proposed method. The experimental results show that the method can detect an early failure and has good sensitivity.","PeriodicalId":352596,"journal":{"name":"2021 2nd Information Communication Technologies Conference (ICTC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129001359","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Scrambling Code Blind Identification in SDH Signal Intelligent Reception SDH信号智能接收中的置乱码盲识别
2021 2nd Information Communication Technologies Conference (ICTC) Pub Date : 2021-05-07 DOI: 10.1109/ICTC51749.2021.9441567
Xiaojun Guo, Shaojing Su, Hanxiang Qian
{"title":"Scrambling Code Blind Identification in SDH Signal Intelligent Reception","authors":"Xiaojun Guo, Shaojing Su, Hanxiang Qian","doi":"10.1109/ICTC51749.2021.9441567","DOIUrl":"https://doi.org/10.1109/ICTC51749.2021.9441567","url":null,"abstract":"The blind identification of scrambling codes is an important issue in intelligent reception of unknown synchronous digital hierarchy (SDH) lines. In this paper, the blind identification of scrambling codes is studied in three aspects: extraction of scrambling code sequence with error codes, determination of scrambling code primitive polynomials and initial attack of linear registers. A method for deducing scrambling primitive polynomials based on higher order statistics is proposed. The method based on partial exhaustive search initial state attack method based on Walsh transform is improved to handle the specific problem in unknown SDH lines. The proposed scheme can identify the scrambling code of the unknown SDH line completely, and has better fault-tolerant performance and low computational complexity.","PeriodicalId":352596,"journal":{"name":"2021 2nd Information Communication Technologies Conference (ICTC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129006437","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Fault Diagnosis of Rolling Bearing Based on KPCA and Stacking Algorithm 基于KPCA和堆积算法的滚动轴承故障诊断
2021 2nd Information Communication Technologies Conference (ICTC) Pub Date : 2021-05-07 DOI: 10.1109/ICTC51749.2021.9441600
Wenhe Chen, Longsheng Cheng, Z. Chang, L. Fu
{"title":"Fault Diagnosis of Rolling Bearing Based on KPCA and Stacking Algorithm","authors":"Wenhe Chen, Longsheng Cheng, Z. Chang, L. Fu","doi":"10.1109/ICTC51749.2021.9441600","DOIUrl":"https://doi.org/10.1109/ICTC51749.2021.9441600","url":null,"abstract":"Aiming at the nonlinear relationship between bearing fault signals, a fault diagnosis method based on KPCA and stacking algorithm is proposed to realize the common fault identification of rolling bearing. Firstly, Empirical Mode Decomposition (EMD) is conducted to decompose the bearing signal and extract the features to obtain the running state information of the bearing in different states. Then, Kernel Principal Component Analysis (KPCA) is applied to fuse features and reduce the dimension of bearing signals to reduce the influence of nonlinear correlation on fault identification. Finally, the stacking algorithm is used to identify the bearing fault signal, and the test data is used to validate it. The results show that the stacking algorithm based on KPCA can effectively identify the types of bearing fault.","PeriodicalId":352596,"journal":{"name":"2021 2nd Information Communication Technologies Conference (ICTC)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128709693","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
QoSRA: A QoS-Aware Routing Algorithm for Software Defined Satellite Networks 软件定义卫星网络的qos感知路由算法
2021 2nd Information Communication Technologies Conference (ICTC) Pub Date : 2021-05-07 DOI: 10.1109/ICTC51749.2021.9441632
Junzhou Zhang, Rui Ding, Jiang Liu, Ran Zhang, Hua Lu
{"title":"QoSRA: A QoS-Aware Routing Algorithm for Software Defined Satellite Networks","authors":"Junzhou Zhang, Rui Ding, Jiang Liu, Ran Zhang, Hua Lu","doi":"10.1109/ICTC51749.2021.9441632","DOIUrl":"https://doi.org/10.1109/ICTC51749.2021.9441632","url":null,"abstract":"Satellite networks are moving in the direction of merging with terrestrial networks, thus more types of services will flood into satellite networks. To meet the QoS requirements of different communication services in satellite networks, it is necessary to design effective on-board routing algorithms. In this paper, we design an SDN-enabled LEO/GEO satellite network model at first. In view of this model, a QoS-aware routing algorithm (QoSRA) based on the traffic scheduling framework combining Priority Queue (PQ) and Weighted Round Robin (WRR) is proposed. QoSRA divides the services in satellite networks into three categories: class A (two-way conversational services), class B (request-response services) and class C (one-way data streaming services), so as to provide differentiated services for these different types of services. For class A and class B services which both have certain requirements for delay, we improve the low-complexity routing algorithm (LCRA) to obtain the optimal path with the location information of the current satellite node and the destination node by centralized computation. For class C services that have high restrictions on bandwidth, we propose a dynamic bandwidth adaption algorithm based on link status, which provides the bandwidth guarantee for these services while solving the congestion problem on the shortest path. Through the comparison of simulation, QoSRA can not only guarantee the QoS requirements of different types of services but also is superior to other routing algorithms in terms of mean end-to-end delay, packet loss rate and data throughput.","PeriodicalId":352596,"journal":{"name":"2021 2nd Information Communication Technologies Conference (ICTC)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116725913","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
Geometric Dilution of Precision for Far-Distance TDOA Location of Shortwave 短波远距离TDOA定位精度的几何稀释
2021 2nd Information Communication Technologies Conference (ICTC) Pub Date : 2021-05-07 DOI: 10.1109/ICTC51749.2021.9441633
Xin Yang, Yunxia Ye
{"title":"Geometric Dilution of Precision for Far-Distance TDOA Location of Shortwave","authors":"Xin Yang, Yunxia Ye","doi":"10.1109/ICTC51749.2021.9441633","DOIUrl":"https://doi.org/10.1109/ICTC51749.2021.9441633","url":null,"abstract":"A method of time difference of arrival (TDOA) location for shortwave signal source by four receiving stations is introduced. The precision of time difference and the Geometric Dilution of Precision (GDOP) of TDOA location are analyzed and simulated. The results show that TDOA estimation performance is positively correlated with signal bandwidth, signal cumulative time and signal-to-noise ratio (SNR), while TDOA location precision is positively correlated with TDOA estimation precision and distance between the receiving stations. At the same time, the simulation analysis of station arrangement among multiple stations is carried out, and the results show that Y-shaped station mode gets the best location effect.","PeriodicalId":352596,"journal":{"name":"2021 2nd Information Communication Technologies Conference (ICTC)","volume":"66 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114481464","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Simulation and Analysis of Heterogeneous Traffic of Space-Ground Integrated Information Network Based on OPNET 基于OPNET的空地综合信息网异构业务仿真与分析
2021 2nd Information Communication Technologies Conference (ICTC) Pub Date : 2021-05-07 DOI: 10.1109/ICTC51749.2021.9441498
Liangliang Fan, Z. Deng, Ke Wang, Wenliang Lin, Zhongguo Li, Xiaoyi Yu, Jie Chen
{"title":"Simulation and Analysis of Heterogeneous Traffic of Space-Ground Integrated Information Network Based on OPNET","authors":"Liangliang Fan, Z. Deng, Ke Wang, Wenliang Lin, Zhongguo Li, Xiaoyi Yu, Jie Chen","doi":"10.1109/ICTC51749.2021.9441498","DOIUrl":"https://doi.org/10.1109/ICTC51749.2021.9441498","url":null,"abstract":"The space-ground integrated information network is a typical complex heterogeneous network. The distribution of the traditional single network or specific network traffic model is closely related to the characteristics of the network. It lacks of description of traffic space characteristics and it is difficult to describe the space-ground integrated information network with traffic large time-space span and multilayer network services and multi-hop coordination. This paper proposes a multilayer network traffic model based on time-space correlation and Markov transfer, constructs user groups for users related to traffic time and space, and combines the user's geographic changes to further optimizes the Markov-based multi-network arrival multilayer traffic model combined, and realizes example description of traffic characteristics under multiple networks such as satellites, unmanned aerial vehicle, and ground networks. In addition, this paper evaluates the model from both self-similarity and accuracy. The simulation results in OPNET show that the self-similarity error is 1.23%, the performance is improved by 12%, and the probability distribution error remains within 5%.","PeriodicalId":352596,"journal":{"name":"2021 2nd Information Communication Technologies Conference (ICTC)","volume":"114 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114218179","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Research and Implementation of Terminal Emulation of PTTE-IoT PTTE-IoT终端仿真的研究与实现
2021 2nd Information Communication Technologies Conference (ICTC) Pub Date : 2021-05-07 DOI: 10.1109/ICTC51749.2021.9441656
Xinlong Yu, Hong Liu, Min Zheng, Chong Tan
{"title":"Research and Implementation of Terminal Emulation of PTTE-IoT","authors":"Xinlong Yu, Hong Liu, Min Zheng, Chong Tan","doi":"10.1109/ICTC51749.2021.9441656","DOIUrl":"https://doi.org/10.1109/ICTC51749.2021.9441656","url":null,"abstract":"With the development of Internet of Things for power transmission and transformation equipment (PTTE-IoT), there is an increasing demand for protocol conformance tests. Terminal emulation is used in protocol tests, which improves the reliability of protocol tests while reducing costs. In the paper, terminal emulation is studied through researching and summarizing various PTTE-IoT terminal business behaviors and network characteristics. A terminal emulation scheme is realized, in which more than 50 terminals of multiple types can be emulated while the validity of test results is improved. The scheme is deployed in over 25 protocol conformance test cases, which verified the effectiveness of the scheme. In addition, the framework of the scheme can also be applied to other TDMA network test scenarios.","PeriodicalId":352596,"journal":{"name":"2021 2nd Information Communication Technologies Conference (ICTC)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114380396","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A Deep Learning Based Method for Blind Recognition of LDPC Codes 基于深度学习的LDPC码盲识别方法
2021 2nd Information Communication Technologies Conference (ICTC) Pub Date : 2021-05-07 DOI: 10.1109/ICTC51749.2021.9441497
Longqing Li, Linhai Xie, Zhiping Huang, Chunwu Liu, Jing Zhou, Yimeng Zhang
{"title":"A Deep Learning Based Method for Blind Recognition of LDPC Codes","authors":"Longqing Li, Linhai Xie, Zhiping Huang, Chunwu Liu, Jing Zhou, Yimeng Zhang","doi":"10.1109/ICTC51749.2021.9441497","DOIUrl":"https://doi.org/10.1109/ICTC51749.2021.9441497","url":null,"abstract":"Deep learning is an emerging research direction in machine learning, which has a promising application in the field of communications. In this paper, we focus on adaptive coding systems based on LDPC codes and study the problem of blind recognition with a pre-defined LDPC encoder candidate set. We propose a deep learning (DL)-based method for blind recognition using the log-likelihood ratios (LLR) of the syndrome a posteriori probabilities (SPP). The proposed method requires only a simple Multi-Layer Perceptron (MLP) and can therefore be easily used for systems with high real-time requirements as well as can be easily adapted to different codes and channel parameters. Simulation results show that the proposed approach allows for a comparable recognition performance to existing methods.","PeriodicalId":352596,"journal":{"name":"2021 2nd Information Communication Technologies Conference (ICTC)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123793084","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Efficient Communication Deployment with UAV Cluster Based on Task-Driven Method 基于任务驱动方法的无人机集群高效通信部署
2021 2nd Information Communication Technologies Conference (ICTC) Pub Date : 2021-05-07 DOI: 10.1109/ICTC51749.2021.9441550
Jincheng Li, Lang Ruan, Xiaogang Tang, K. Guo, Guangming Yuan
{"title":"Efficient Communication Deployment with UAV Cluster Based on Task-Driven Method","authors":"Jincheng Li, Lang Ruan, Xiaogang Tang, K. Guo, Guangming Yuan","doi":"10.1109/ICTC51749.2021.9441550","DOIUrl":"https://doi.org/10.1109/ICTC51749.2021.9441550","url":null,"abstract":"In recent years, unmanned aerial vehicle (UAV) communication technology has developed rapidly, and UAV cluster cooperation is widely used in communication deployment scenarios. In this paper, we consider a disaster scenario in which ground communication is interrupted due to the damage of ground base stations. Organize a UAV cluster which wireless access devices are arranged on UAVs to collect data information uploaded by mobile devices equipped with ground search and rescue personnel, and UAV cluster air communication network is established for disaster-stricken areas, so as to achieve the goal of rapid emergency communication. According to the model, the UAV cluster collaborative deployment scheme based on task-driven is designed. The centralized cloud platform is set to realize offline c omputing a nd U AV d eployment. A U AV deployment algorithm based on log linear learning is designed, which works together with UAV coverage utility function to achieve the goal of whole network coverage. The simulation results show that the proposed algorithm has generality and effectiveness, and has better performance than the optimal selection algorithm, which also confirms the efficiency of problem modeling and solution.","PeriodicalId":352596,"journal":{"name":"2021 2nd Information Communication Technologies Conference (ICTC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131113891","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Research on 5G SA Network Shared Voice Solution 5G SA网络共享语音解决方案研究
2021 2nd Information Communication Technologies Conference (ICTC) Pub Date : 2021-05-07 DOI: 10.1109/ICTC51749.2021.9441500
Xiao Li, Weiliang Xie, Yong Zhao, Xiaoyin Zhao
{"title":"Research on 5G SA Network Shared Voice Solution","authors":"Xiao Li, Weiliang Xie, Yong Zhao, Xiaoyin Zhao","doi":"10.1109/ICTC51749.2021.9441500","DOIUrl":"https://doi.org/10.1109/ICTC51749.2021.9441500","url":null,"abstract":"With the evolution and maturity of 5G SA network, aiming at the co-construction and sharing status, in order to provide the voice service, the paper summarized the SA sharing networking mode and voice service solutions. The technical solutions of EPS Fallback and Fast Return voice services based on handover or redirection under the current SA access network sharing scheme are studied in depth. The two solutions are analyzed, and the field tests are carried out. Finally, the test results are given and the technical feasibility is clarified.","PeriodicalId":352596,"journal":{"name":"2021 2nd Information Communication Technologies Conference (ICTC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129475051","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
首页 上一页 下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：604180095
Book学术官方微信