Renjie Gui, Ziyi Gong, Zaichen Zhang, Liang Wu, Yin Liu, J. Dang, Lei Wang
{"title":"Adaptive Hybrid Beamforming for Uplink Multi-user Millimeter Wave Systems","authors":"Renjie Gui, Ziyi Gong, Zaichen Zhang, Liang Wu, Yin Liu, J. Dang, Lei Wang","doi":"10.1109/ICTC51749.2021.9441610","DOIUrl":"https://doi.org/10.1109/ICTC51749.2021.9441610","url":null,"abstract":"Without the requirement of the fully estimated channel state information, this paper proposes a novel iterative training scheme for a uplink multi-user millimeter wave (mmWave) system with the hybrid beamforming (HBF). By introducing the multi-user reference signals, objective functions are formulated for the optimization of the phase-only analog beamforming (ABF). With limited radio frequency (RF) resources, we implement a time-division training framework for sub-arrays to adaptively exploit the optimal ABF vectors. Moreover, zero-forcing (ZF) equalization is performed to further eliminate inter-user interference in the digital beamforming (DBF). Simulation results indicate that the proposed schemes outperform the direct path steering scheme in the multi-user scattering environment.","PeriodicalId":352596,"journal":{"name":"2021 2nd Information Communication Technologies Conference (ICTC)","volume":"52 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":"114369393","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}
{"title":"Data Organization Methods for Computer Monitoring System of Low-Voltage Distribution Network","authors":"Xing Chen, Hongkun Li","doi":"10.1109/ICTC51749.2021.9441615","DOIUrl":"https://doi.org/10.1109/ICTC51749.2021.9441615","url":null,"abstract":"It is important for low-voltage power distribution network to use computer monitoring system to improve management of scheduling and ensure the security of power supply. Efficient and flexible data organization method is a strong guarantee of computer monitoring system of power distribution network. UDP-based online configurable data acquisition and organization methods can be used for real-time information query and data management of thousands of low-voltage electrical equipments connected through the fieldbus and Ethernet. Its implement in low-voltage power distribution network computer monitoring system has effectively improved the convenience and applicability of the system, solved the communication bottleneck problem when the traditional configuration system carries out large-scale data acquisition, which has reference value to the related fields.","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":"132420864","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}
Han Xuan, Yanhao Wang, Jiahao Zhu, Yubin Lu, Kai Xu, J. Shen
{"title":"A Load-Balanced Shortest-Path Routing and Spectrum Algorithm Considering Link Weight","authors":"Han Xuan, Yanhao Wang, Jiahao Zhu, Yubin Lu, Kai Xu, J. Shen","doi":"10.1109/ICTC51749.2021.9441502","DOIUrl":"https://doi.org/10.1109/ICTC51749.2021.9441502","url":null,"abstract":"With the rapid increase of transmission bandwidth requirements and much more differentiated services types, there has been an ever-growing research enthusiasm on routing and spectrum allocation (RSA) issue in elastic optical networks (EONs). Basing on the traditional RSA algorithm, this paper introduces the link weight into RSA algorithm, and forming the load-balanced shortest-path routing and spectrum allocation (LSPR) algorithm. Simulation results demonstrate that compared with two kinds of traditional RSA algorithm, the LSPR algorithm can reduce the bandwidth blocking probability (BBP) by approximate 20.14% and 15.30%, and improve the spectrum resource utilization (SRU) by about 20.26% and 10.67%, respectively.","PeriodicalId":352596,"journal":{"name":"2021 2nd Information Communication Technologies Conference (ICTC)","volume":"50 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":"132976167","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}
{"title":"The Design and Implementation of the Client for the Integrated Office Platform","authors":"Hongcheng Tian","doi":"10.1109/ICTC51749.2021.9441581","DOIUrl":"https://doi.org/10.1109/ICTC51749.2021.9441581","url":null,"abstract":"End-users in our hospital operate the integrated office platform (IOP) with too many steps. In detail, it lacks automatic detection of new mails or large files, and a fast access way to IOP. This paper designs and implements a client for IOP (CIOP): a) CIOP designs and implements a session handover mechanism between two kinds of browsers: CIOP implements the former browser, which is used to detect the numbers of new mails and large files automatically periodically or manually at any time, and CIOP subsequently launches the latter browser, IE, which joins the same session generated by the former browser and IOP. And IE can quickly enter the homepage, the mail page or the large-file transferring page of IOP. b) CIOP detects and repairs errors of the CIOP configuration file automatically. c) CIOP detects and prompts the errors of the sound card or network automatically. CIOP has a good robustness, which has been promoted in the 8th Medical Center of Chinese PLA General Hospital. And the application effect is perfect. This paper is of valuable reference for network engineers to make further studies for the interaction between browsers and a Web Server.","PeriodicalId":352596,"journal":{"name":"2021 2nd Information Communication Technologies Conference (ICTC)","volume":"121 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":"116449971","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}
{"title":"A Phase Center Compensation Algorithm for Adaptive Nulling Satellite Navigation Antenna","authors":"Kejin Cao, Zhengwang Luo, Bao Li, Hengchao Ma","doi":"10.1109/ICTC51749.2021.9441551","DOIUrl":"https://doi.org/10.1109/ICTC51749.2021.9441551","url":null,"abstract":"The traditional adaptive nulling antenna array anti-jamming algorithm will cause phase distortion, which will make the antenna phase unstable and produce positioning error. In this paper, starting with the analysis of the adaptive nulling antenna array anti-jamming algorithm, the calculation method of its phase center is deduced, the real-time change of the phase is obtained, the phase center error is determined, and the compensation value is calculated, which is used for the re positioning after correction. Simulation and experimental results verify the rationality and effectiveness of the algorithm, which can be used to improve the positioning accuracy of GNSS receiver using anti-jamming array antenna.","PeriodicalId":352596,"journal":{"name":"2021 2nd Information Communication Technologies Conference (ICTC)","volume":"93 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":"124046858","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}
{"title":"Person Presence Detection and Control the Water Faucet Line in the Bathtub","authors":"Nazmul Hossain, Jing Liao, Dong Zhou","doi":"10.1109/ICTC51749.2021.9441646","DOIUrl":"https://doi.org/10.1109/ICTC51749.2021.9441646","url":null,"abstract":"A smart bathtub system is a new type of accommodation with modern and intelligent facilities of a smart home automation system. It is equipped with a multi-sensor system that will be used to recognize human activities within the bathtub to make it secure, save energy and water. This system design with an interaction design process aims to enlarge product usability; was applied during the development tools. In this smart bathtub system, sensors have been installed with a variety of appliances, the presence sensor can be used to monitor human occupations, also the water level sensor to read the water level in the bathtub. Another part is the auto water faucet line that is supposed to flow water in the bathtub. The presence sensors detect a presence in the bathtub that would automatically initiate the automatic process. First, it detects the presence, and it checks the human activity in the bathtub while the system is active. If the object is present in the bathtub then the automation system will work otherwise not, like water level sensors and water faucet lines would not work if a person’s presence is not in the bathtub. Water level sensors send reading data to the microcontroller, if the water is empty water faucet will turn on, and water flows in the tub. The results demonstrate that the proposed method can detect the conditions of the bathtub presence activity and water level detect effectively with the best-experimented results showed 100% that the water line could be open if presence in the bathtub.","PeriodicalId":352596,"journal":{"name":"2021 2nd Information Communication Technologies Conference (ICTC)","volume":"60 8","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131716613","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}
{"title":"Texture Synthesis Optimization for Large Scale Structures","authors":"Xiuxia Cai, Haoyu Li, Sandong Guo, Huimin Du","doi":"10.1109/ICTC51749.2021.9441501","DOIUrl":"https://doi.org/10.1109/ICTC51749.2021.9441501","url":null,"abstract":"Exemplar-based texture synthesis methods aim to generate arbitrarily larger textures from limited exemplars without strong artifacts or introducing obvious unnatural visual elements. While existing non-parametric exemplar-based synthesis methods have made remarkable progress on reduce artifacts. Most of them have not been good enough to avoid introducing error-mixed larger scale in synthesis textures. In addition, in noisy large-scale regular texture, there always exists the large-scale motif texture. These large-scale motifs are difficult to correct synthesized for texture synthesis. So in this paper we focus on the problem of large scale structures synthesized problem in texture synthesis. In order to avoid introducing error large scale in texture synthesis, diamond searching with decreasing radius method is proposed in the block search step. The patch distance measure is designed by considering local principal curvature. Different from most of the existing techniques, no extra guided channel is needed. The exemplar contends large-scale regular structure will be extracted a motif at first. Then the motif will be synthesized by patch-based method. The experiment results show that the proposed method achieves significant improvements.","PeriodicalId":352596,"journal":{"name":"2021 2nd Information Communication Technologies Conference (ICTC)","volume":"64 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":"129523367","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}
{"title":"Analysis of the Use Cases and Technical Enhancements of TSN","authors":"Hua Zhang, Na Lu, Weiliang Xie, Peng Li","doi":"10.1109/ICTC51749.2021.9441589","DOIUrl":"https://doi.org/10.1109/ICTC51749.2021.9441589","url":null,"abstract":"As a new generation of mobile communication system, 5G has opened the era of full connections and services. The advantages of low jitter, low delay, and deterministic transmission of Time Sensitive Networking (TSN) has gradually attracted widespread attention from the industry. It provides strong supports for application scenarios require higher reliability and lower latency and becomes one of the most important evolution directions of the next-generation industrial network. This paper firstly introduces TSN and related application scenarios, then analyzes its corresponding traffic characteristics and performances, and finally discussed the two key technologies of TSN, which provide reliable transmission and increase the air interface transmission rate respectively, which refer to Packet Data Convergence protocol (PDCP) duplication and Ethernet Header Compression (EHC).","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":"130672101","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}
{"title":"A Service Protection Mechanism Impelemented on P4 by Packet Replication","authors":"Guopeng Zhang, Shuai Gao, Jiarui Yue, Zixuan Zhao","doi":"10.1109/ICTC51749.2021.9441592","DOIUrl":"https://doi.org/10.1109/ICTC51749.2021.9441592","url":null,"abstract":"The traditional Internet uses the best-effort method to deliver, so there are problems with high packet loss rate, low throughput and large jitter. The emergence of Deterministic Networking has brought new ideas to alleviate these problems. This paper proposes a service protection mechanism based on the p4 platform to alleviate the problems of packet loss and jitter in the communication process. This mechanism transmits packets through different paths, and the receiver will judge and eliminate duplicate packets after receiving the packets, thereby realizing rapid fault switching. Packets are replicated and eliminated separately in the data plane, which can also effectively prevent loops and disorder. This solution not only fulfills the requirement of reliable delivery of packets in service protection of Deterministic Networking, but also supplements the application of P4 language in network service reliability. The performance test compared the traditional single-path forwarding scheme, and the packet loss rate was reduced by 16%, which improved the reliability of network services. At the same time, in the case of relatively large background traffic, the service protection mechanism scheme has relatively stable throughput, average delay and jitter performance compared with the minimum hop single path scheme.","PeriodicalId":352596,"journal":{"name":"2021 2nd Information Communication Technologies Conference (ICTC)","volume":"63 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":"130748553","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}
{"title":"A Practice Approach to Teach Computer Organization and Interface Technology","authors":"Dong Zuo, W. Cheng, Jie Luo","doi":"10.1109/ICTC51749.2021.9441661","DOIUrl":"https://doi.org/10.1109/ICTC51749.2021.9441661","url":null,"abstract":"Microcomputer system is unsuitable as a practice platform for \"Computer Organization and Interface Technology\" learners because of its complexity. In order to solve this problem, the educators have proposed a large number of solutions, such as simulation software, embedded micro-controller, FPGA, etc., but all the existing solutions have certain limitations. This paper presents a practical approach combining simulation software and FPGA platform, which can effectively help students understand the knowledge required for the course. The approach has been in use for undergraduates of the school of electronic information and communications in Huazhong University of Science and Technology for many years, and the outcome is good.","PeriodicalId":352596,"journal":{"name":"2021 2nd Information Communication Technologies Conference (ICTC)","volume":"17 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":"133482796","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}