2021 IEEE 4th International Conference on Electronics and Communication Engineering (ICECE)最新文献

{"title":"Sequence Detection Algorithm Based on Local Error Correction in Differential Frequency Hopping System","authors":"X. Ning, Peng Jin, Zhiguo Sun","doi":"10.1109/ICECE54449.2021.9674571","DOIUrl":"https://doi.org/10.1109/ICECE54449.2021.9674571","url":null,"abstract":"Differential frequency hopping is an effective way to improve the data transmission rate in frequency hopping technology. The sequence detection algorithm at the receiver is the focus of differential frequency hopping research. Aiming at the shortcomings of the existing sequence detection and reception algorithms, this paper proposes an improved sequence detection and reception algorithm, which ensures that the minimum free distance and fan out coefficient do not increase, Through the correlation before and after the differential frequency hopping frequency set, the output results of the incoherent square law energy detector are locally pre corrected to reduce the probability of continuous decision error, improve the accuracy of decision frequency, and then improve the communication performance of the differential frequency hopping communication system. The algorithm is theoretically analyzed and verified by simulation. The simulation results show that the communication performance of the system is greatly improved compared with the conventional sequence detection algorithm.","PeriodicalId":166178,"journal":{"name":"2021 IEEE 4th International Conference on Electronics and Communication Engineering (ICECE)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123366585","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":"An SIC-based Slotted Array Antenna Design for Millimeter-Wave Application","authors":"Shengjie Wang, Liguo Sun, Jean De Dieu Ntawangaheza, Zipeng Xie","doi":"10.1109/ICECE54449.2021.9674596","DOIUrl":"https://doi.org/10.1109/ICECE54449.2021.9674596","url":null,"abstract":"An novel slotted-array antenna based on SIC (Substrate Integrated Cavity) structure for millimeter-wave application is presented. 3 $times$ 3 rectangular slots and an ellipse-ring slot amalgamate to form the slot array on the top surface of SIC structure. Basically the 3 $times$ 3 slots are used to radiate out the energy of resonant modes inside the cavity of SIC structure. The ellipse-ring slot is employed to further widen the operating bandwidth and enlarge the gain performance. The simulated results show that the proposed antenna achieves an impedance bandwidth of 26.4% (27.29 to 35.6 GHz) with an average broadside gain of 9.2 dBi. The maximum broadside gain of 9.7 dBi at 32 GHz is obtained. In addition, both symmetric radiation patterns in the E- and H-planes are realized. The cross polarization level is lower than -30dB at the broadside radiation direction.","PeriodicalId":166178,"journal":{"name":"2021 IEEE 4th International Conference on Electronics and Communication Engineering (ICECE)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123046412","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":"Computing Resource Allocation in Mobile Edge Networks Based on Game Theory","authors":"Jing Jiang, Peizhe Xin, Yudong Wang, Lirong Liu, Yuhao Chai, Yong Zhang, Sige Liu","doi":"10.1109/ICECE54449.2021.9674451","DOIUrl":"https://doi.org/10.1109/ICECE54449.2021.9674451","url":null,"abstract":"Mobile Edge Computing (MEC), as a new computing mode, can deploy computing tasks on the edge of the network of terminal devices, which can effectively reduce latency and energy consumption pressure. This paper studied how to allocate computing resources on mobile edge networks, through a bundle of bandwidth and computing frequency. The reasonable allocation of resources is realized by means of adjusting resource price by MEC server and users competing to purchase resources. Complete information game theory is applied and moved the edge network abstraction into Stackelberg model, then proves the existence of Nash equilibrium, and the model obtained the optimal resource allocation strategy. Simulation results show the rationality and effectiveness of the model.","PeriodicalId":166178,"journal":{"name":"2021 IEEE 4th International Conference on Electronics and Communication Engineering (ICECE)","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122141120","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":"CT-VAE: An Unsupervised Noise Filtering Algorithm for Weibo Topic Datasets","authors":"Yingying He, Zheng Wang, Wei Zhao, Zhensu Sun","doi":"10.1109/ICECE54449.2021.9674266","DOIUrl":"https://doi.org/10.1109/ICECE54449.2021.9674266","url":null,"abstract":"Weibo Topic has become a popular data source for text analysis. Its quality is important to the results of related research or applications. However, as a crowdsource dataset, Weibo Topic suffers from the noises generated by malicious bloggers. To attract more views, these bloggers tend to tag their blogs with unrelated topic tags, which brings significant noises to this dataset. To filter these noises, researchers have proposed automated filter methods using supervised or semi-supervised learning. However, these methods require human-annotated data to train the models, which significantly raises the cost to build such filtering systems. In this work, we propose an unsupervised filtering method, CT-VAE, based on Variational Auto-Encoder. CT-VAE trains multiple VAE models on different topics to identify the noises. Our experiments show that CT-VAE can achieve better results than supervised learning methods when more unlabeled data are collected.","PeriodicalId":166178,"journal":{"name":"2021 IEEE 4th International Conference on Electronics and Communication Engineering (ICECE)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121213330","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 Blockchain-based Protocol for Evidence Preservation in Hengxing vs. Zhenhai Case","authors":"Xinbo Wang, Xusheng Lu, Pengli Wang, Xin Huang, Haotian Yin, Bin Xing, Di Zhang, Zhao Wang, Jiaxing Wu","doi":"10.1109/ICECE54449.2021.9674252","DOIUrl":"https://doi.org/10.1109/ICECE54449.2021.9674252","url":null,"abstract":"In 2006, Hengxing and Zhenhai signed a transportation service agreement via fax. Then the two parties disputed the authenticity of the agreement and went to court. This involves the legality, factuality, and relativity of the evidence provided by the double-issue, and we can use the advantages of the blockchain to assist in the collection of judicial evidence. We confirm the identity through a security authentication protocol, and then store data including timestamps and hashes in the blockchain after verification, so as to provide judicial validity to the evidence data.","PeriodicalId":166178,"journal":{"name":"2021 IEEE 4th International Conference on Electronics and Communication Engineering (ICECE)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134340541","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":"Electro-Thermal Model for Schottky Barrier Diode Based on Self-Heating Effect","authors":"Jianhang Cui, Yong Zhang, Haomiao Wei, Qingzhi Wu, Shuman Mao, Yuehang Xu, B. Yan, R. Xu","doi":"10.1109/ICECE54449.2021.9674655","DOIUrl":"https://doi.org/10.1109/ICECE54449.2021.9674655","url":null,"abstract":"Terahertz frequency multiplier is very important for terahertz transceiver front-end to achieve terahertz high-speed wireless communication. In this paper, a study was conducted on the physical electro-thermal model of Schottky barrier diode developed on the basis of self-heating effect. The SPICE model and Symbolically Defined Devices (SDD) model of the diode with temperature-dependent saturation current and series resistance were constructed, respectively. Through Electromagnetic Heating multi-physics coupled with Heat Transfer in Solids and Electric Currents, an investigation was conducted into the temperature distribution and current distribution of the diode at dissipated powers. The SPICE model of the diode usually consisting of constant parameters was adopted to explore the I-V characteristics of the diode with temperature-dependent saturation current and series resistance at different temperatures. Given that the temperature, saturation current and series resistance of the diode have impact on each other, the diode SDD model with self-heating effect was further constructed by defining the port current related to temperature and the port voltage. The occurrence of current saturation phenomenon was demonstrated using the diode SDD model rather than the diode SPICE model, so as to validate this diode SDD model. The study of the diode physical electro-thermal model based on self-heating effect contributes a novel idea to the design of terahertz frequency multiplier and terahertz wireless communications.","PeriodicalId":166178,"journal":{"name":"2021 IEEE 4th International Conference on Electronics and Communication Engineering (ICECE)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133945572","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":"GFDM with Number and Reuse Combination Hybrid","authors":"Xueshuang Wang, M. Diao, Peng Jin, Xiaopeng Zhang","doi":"10.1109/ICECE54449.2021.9674503","DOIUrl":"https://doi.org/10.1109/ICECE54449.2021.9674503","url":null,"abstract":"Generalized frequency division multiplexing with index modulation (GFDM-IM) is a new type of multi-carrier technology. In order to further improve the error performance of the GFDM-IM system, this paper proposes a scheme called GFDM with hybrid number and reuse combinations index modulation (GFDM-HNRC-IM). This scheme increases the number of index bits by reusing the index combinations and increases the index that controls the number of active subcarriers, and finally improves the error performance of the system under the same spectrum efficiency (SE). At the same time, a low complexity receiver is designed for this system. The bit error rate (BER) of the system under Rayleigh multipath fading channel is simulated, and the results show that the BER performance of the proposed scheme is better than that of GFDM-IM.","PeriodicalId":166178,"journal":{"name":"2021 IEEE 4th International Conference on Electronics and Communication Engineering (ICECE)","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124565814","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 Novel Online Adaptive DC Offset Correcting Circuit","authors":"Youhua Wang, Fei Li, Kairang Chen, D. Fu","doi":"10.1109/ICECE54449.2021.9674449","DOIUrl":"https://doi.org/10.1109/ICECE54449.2021.9674449","url":null,"abstract":"In this paper, a novel online adaptive DC (direct current) offset correction circuit which is used in the wireless receiver is proposed. Compared to the conventional methods, the proposed circuit adaptively corrects the DC offset to reduce the impact on the receiver performance. In the case of a large DC offset, the circuit employs a large tuning rate. On the contrary, when the incoming signal is with a small DC offset, the circuit employs a small tuning rate. Theocratical analysis and simulation results show that two advantages are gained with the proposed circuit. Firstly, the method can work online which adjusts slow-changing DC values because of operating conditions. Secondly, with the adaptive mechanism, the proposed circuit counteracts the DC offset with fast convergence speed but has little impact on the signal chain. Additional to the proposed circuit, an error analysis method is proposed. According to the proposed method, the circuit parameters are designed quickly and accurately.","PeriodicalId":166178,"journal":{"name":"2021 IEEE 4th International Conference on Electronics and Communication Engineering (ICECE)","volume":"796 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117039774","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":"Design of Emergency Rescue Command Platform Based on Satellite Mobile Communication System","authors":"Jun Zheng, Changsheng Shan, Qiang Li, Jianglai Xu, Xinglong Wang","doi":"10.1109/ICECE54449.2021.9674622","DOIUrl":"https://doi.org/10.1109/ICECE54449.2021.9674622","url":null,"abstract":"In the past 20 years, with the changes of world climate and geological conditions, the frequency of natural disasters in China has been increasing. Typhoon, earthquakes, tsunamis and floods have brought great losses to Chinese people’s living property. Therefore, it is imperative to efficiently organize communication links, grasp the situation of the disaster areas in real time, and jointly carry out rescue and disaster relief. However, because the places where natural disasters occur often belong to remote areas, the communication means are relatively backward, especially after the occurrence of large-scale disasters such as earthquakes and floods, the implementation of ground communication equipment has been damaged or cut off, and cannot be used normally. Therefore, it is urgent for a means of communication that can cover extensive and unrestricted areas to implement emergency rescue command. Satellite mobile communication is the most effective wide coverage communication means due to its advantages of stable operation, less interference, flexible networking, independent communication cost and distance, and can provide wide domain coverage not limited by geographical environment. The Tiantong-1 satellite mobile communication system launched in 2016 is the first generation of large-capacity GEO satellite mobile communication system independently built by China. The system uses multi-beam covering our territorial territory, can provide voice, SMS, fax, data and image business, such as resources independent controllable, all-weather service, no communication blind area, transmission reliability, facilities high resistance, and with public network connectivity, suitable for pillar industries and government agencies and other key departments application, unique advantages in emergency rescue command. Therefore, this paper combines the application needs of different rescue types, builds an emergency rescue command platform based on “Tiantong-1” satellite mobile communication system, to further play the benefits of information foundation support, and will play a core and key role in national emergency disaster relief.","PeriodicalId":166178,"journal":{"name":"2021 IEEE 4th International Conference on Electronics and Communication Engineering (ICECE)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114100680","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":"Early Detection of Node Capture Attack in the Internet of Things","authors":"Jin Wang, Liang Zhou, Li Tian, Xiao Yu, Chang Liu","doi":"10.1109/ICECE54449.2021.9674523","DOIUrl":"https://doi.org/10.1109/ICECE54449.2021.9674523","url":null,"abstract":"Due to the characteristics of small volume, low power consumption and often distributed in unattended corners, node devices in IoT have become the main entrance for attackers to control the network. In order to detect abnormal nodes as early as possible, we study the detection methods in the early stage of node capture attack in this paper, and combine the characteristics of the most commonly used MQTT protocol in the Internet of things with core idea of typical detection methods. Under server-client architecture, heartbeat message and greeting message are used together to monitor the node state. Finally, a review module determines the node state to avoid false positives when an exception is found. In order to balance the detection rate and network traffic consumption, we design an adaptive mechanism of heartbeat frequency.","PeriodicalId":166178,"journal":{"name":"2021 IEEE 4th International Conference on Electronics and Communication Engineering (ICECE)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125324072","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}