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Proceedings of the 2nd International Conference on Telecommunications and Communication Engineering最新文献

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Efficient Tensor Completion for Internet Traffic Data Recovery 高效张量补全的互联网流量数据恢复
Proceedings of the 2nd International Conference on Telecommunications and Communication Engineering Pub Date : 2018-11-28 DOI: 10.1145/3291842.3291912
Yuanyuan Li, K. Yu, Xiaofei Wu
{"title":"Efficient Tensor Completion for Internet Traffic Data Recovery","authors":"Yuanyuan Li, K. Yu, Xiaofei Wu","doi":"10.1145/3291842.3291912","DOIUrl":"https://doi.org/10.1145/3291842.3291912","url":null,"abstract":"In real-world traffic data, missing data is inevitable for traffic collection problem and some other reasons. Therefore, it is increasingly critical to complete the whole traffic data. To make full use of hidden spatial-temporal structures of the Internet traffic data, we extend to traffic matrix (user, server) to a three-way tensor (user, server, time). This paper proposed a novel algorithm to recover the missing data, named TSVT (Tucker decomposition and tensor singular value thresholding). We exploit the proposed the Tucker decomposition and low rank tensor completion (LRTC). Based on LRTC, we extend the known singular value thresholding (SVT) to the tensor case, and combine Tucker decomposition to optimize the performance of the algorithm. Based on Internet traffic data, we model two different tensors, and apply our TSVT to infer the unobserved data of the traffic. Furthermore, we apply TSVT algorithm to our Internet data. Numerical experiments on Synthetic data verify our method and the application for completing DPI traffic data proves the effectiveness of the method.","PeriodicalId":283197,"journal":{"name":"Proceedings of the 2nd International Conference on Telecommunications and Communication Engineering","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114307062","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
A LFMCW Radar System with Time-frequency Analysis for Motion Tracking 运动跟踪时频分析LFMCW雷达系统
Proceedings of the 2nd International Conference on Telecommunications and Communication Engineering Pub Date : 2018-11-28 DOI: 10.1145/3291842.3291847
Chenyang Du, W. Kang, Wen Wu
{"title":"A LFMCW Radar System with Time-frequency Analysis for Motion Tracking","authors":"Chenyang Du, W. Kang, Wen Wu","doi":"10.1145/3291842.3291847","DOIUrl":"https://doi.org/10.1145/3291842.3291847","url":null,"abstract":"A LFMCW radar system operating at X band is presented in this paper, which is applied to detecting and tracing moving subject in the crowded environment. Two kinds of frequency generation techniques, digital PLL and sampling PLL, are used in radar front-end for enhancing noise performance and stability. Smacq USB-4600 data acquisition board is used to sample the IF signal. MATLAB is the tool for time-frequency analysis in order to obtain velocity-time map on the basis of 2D-fft. In this paper, a man running in the hallway has been chosen to be the target for detection. The experiment proves the potential application of this system in obtaining target's motion information at a discretionary moment as well as time-varying moving state during a period.","PeriodicalId":283197,"journal":{"name":"Proceedings of the 2nd International Conference on Telecommunications and Communication Engineering","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114707534","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
Co-clustering Analysis of Mobile Users' Usage Behavior on Apps 移动用户应用使用行为的共聚类分析
Proceedings of the 2nd International Conference on Telecommunications and Communication Engineering Pub Date : 2018-11-28 DOI: 10.1145/3291842.3291856
Changyuan Li, K. Yu, Xiaofei Wu
{"title":"Co-clustering Analysis of Mobile Users' Usage Behavior on Apps","authors":"Changyuan Li, K. Yu, Xiaofei Wu","doi":"10.1145/3291842.3291856","DOIUrl":"https://doi.org/10.1145/3291842.3291856","url":null,"abstract":"Nowadays the explosion of smart-phone apps has created a fertile ground to study behavior of mobile users. In this paper, we utilize network footprint data (NFP) which consists of DPI data from ISPs and Crawler data from Web for analyzing the users' behavior. We construct three matrices including (user-app connections matrix, app-time correlations matrix, app-time users matrix) based on the processed NFP data, and apply co-clustering on the matrices. Through analyzing the co-clustering's results in detail, we find many interesting relations among user, app, and time. At last we choose four days' data and analyze the stability of our results.","PeriodicalId":283197,"journal":{"name":"Proceedings of the 2nd International Conference on Telecommunications and Communication Engineering","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123142511","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
Power-limitation-based PAPR Reduction Scheme for DCO-OFDM VLC Systems 基于功率限制的DCO-OFDM VLC系统PAPR降低方案
Proceedings of the 2nd International Conference on Telecommunications and Communication Engineering Pub Date : 2018-11-28 DOI: 10.1145/3291842.3291844
Tian Zhang, Y. Zou, S. Qiao
{"title":"Power-limitation-based PAPR Reduction Scheme for DCO-OFDM VLC Systems","authors":"Tian Zhang, Y. Zou, S. Qiao","doi":"10.1145/3291842.3291844","DOIUrl":"https://doi.org/10.1145/3291842.3291844","url":null,"abstract":"In this paper, we propose a novel peak-to-average power ratio (PAPR) reduction technique for DC-biased optical orthogonal frequency division multiplexing (DCO-OFDM)-based visible light communication (VLC) systems. The positive and negative amplitudes of DCO-OFDM are separately processed with a different linear companding transform under the emission power conservation criteria. The transfer characteristic of a commercial light-emitting diodes (LEDs) is also employed to illustrate this PAPR reduction technique's effect. The complementary cumulative distribution function simulation results indicate that the proposed scheme has the ability to improve the system performance in DCO-OFDM-based VLC systems.","PeriodicalId":283197,"journal":{"name":"Proceedings of the 2nd International Conference on Telecommunications and Communication Engineering","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124004780","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
Reliability Evaluation with Heat Dissipation Effect for a Ka-band MMIC PA 考虑散热效应的ka波段MMIC放大器可靠性评估
Proceedings of the 2nd International Conference on Telecommunications and Communication Engineering Pub Date : 2018-11-28 DOI: 10.1145/3291842.3291874
Q. Lin, Haifeng Wu, Yingde Pan, Linsheng Liu
{"title":"Reliability Evaluation with Heat Dissipation Effect for a Ka-band MMIC PA","authors":"Q. Lin, Haifeng Wu, Yingde Pan, Linsheng Liu","doi":"10.1145/3291842.3291874","DOIUrl":"https://doi.org/10.1145/3291842.3291874","url":null,"abstract":"The circuit design and reliability evaluation for a Ka-band MMIC power amplifier (PA) based on 0.1 um GaAs pHEMT process is presented in this paper. A modified finite element analysis (FEA) method is used to explore the interconnect reliability and thermal reliability for this PA. The heat dissipation of interconnect and transistor has been considered simultaneously in this model based on the atomic flux divergence (AFD) theory. The reliability evaluation is presented accurately with the temperature distribution and AFD distribution. Thus, the weakest spot of the model can be identified. This kind of reliability evaluation method can be applied easily for other conventional ICs and provide valuable guidance for PA reliability design.","PeriodicalId":283197,"journal":{"name":"Proceedings of the 2nd International Conference on Telecommunications and Communication Engineering","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131115864","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
Broadband CP Microstrip Antenna with Higher Gain at Low Elevation for Satellite Communication 卫星通信低空高增益宽带CP微带天线
Proceedings of the 2nd International Conference on Telecommunications and Communication Engineering Pub Date : 2018-11-28 DOI: 10.1145/3291842.3291849
Zhou Xiaoyu, Tang Pu, Wang Decai
{"title":"Broadband CP Microstrip Antenna with Higher Gain at Low Elevation for Satellite Communication","authors":"Zhou Xiaoyu, Tang Pu, Wang Decai","doi":"10.1145/3291842.3291849","DOIUrl":"https://doi.org/10.1145/3291842.3291849","url":null,"abstract":"In this paper, a broadband circularly polarized microstrip antenna with higher gain at low elevation is proposed for satellite communication systems. The antenna uses a Wilkinson power divider with 90° phase difference to feed a pair of orthogonally placed H-shaped slots to achieve broadband circular polarization. By loading a partially enclosed folded conducting wall which is contact with the ground plane and perpendicular to the dielectric substrate of microstrip antenna, broad beamwidth is achieved, thereby improving the gain at low elevation. The proposed antenna is fabricated and measured. The measurement results show that the gain of the antenna with the folded conducting wall at 20° elevation is at least 4.47dBi higher than the antenna without the folded conducting wall at the central frequency. The impedance bandwidth for |S11|< -10dB is 34.4%(1.76-2.52GHz).","PeriodicalId":283197,"journal":{"name":"Proceedings of the 2nd International Conference on Telecommunications and Communication Engineering","volume":"126 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125708802","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 Scheme to Improve the Accuracy of Antenna Impedance Detection 一种提高天线阻抗检测精度的方案
Proceedings of the 2nd International Conference on Telecommunications and Communication Engineering Pub Date : 2018-11-28 DOI: 10.1145/3291842.3291917
DongShuqian, LvJingyang, JiangYiyue
{"title":"A Scheme to Improve the Accuracy of Antenna Impedance Detection","authors":"DongShuqian, LvJingyang, JiangYiyue","doi":"10.1145/3291842.3291917","DOIUrl":"https://doi.org/10.1145/3291842.3291917","url":null,"abstract":"The detection of antenna impedance is the core component of the Ultra-short-wave modulation System. The main scheme of current engineering application environment is vector impedance detection. This scheme is widely used because it has the advantages of high accuracy and wide range of measurable frequencies based on vector network and transmission line theory. However, the original vector impedance detection scheme has extremely high requirements on the performance of the circuit, and the system error in the high-frequency environment is difficult to restrain by calibration. In order to solve the above problems, this paper proposes a scheme based on Integrated Learning. The program builds a supervised machine learning model to suppress system errors through the data acquisition of standard devices thus improve the accuracy of impedance inspection The test results show that the impedance detection scheme based on Integrated Learning improves the accuracy significantly compared to the original vector impedance detection method.","PeriodicalId":283197,"journal":{"name":"Proceedings of the 2nd International Conference on Telecommunications and Communication Engineering","volume":"64 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124085500","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 Half Bit Interleaved RZ-OOK Modulation for LED Based Visible Light Communication 基于LED可见光通信的半位交错RZ-OOK调制
Proceedings of the 2nd International Conference on Telecommunications and Communication Engineering Pub Date : 2018-11-28 DOI: 10.1145/3291842.3291924
Shen Yijie, Wu Yongsheng
{"title":"A Half Bit Interleaved RZ-OOK Modulation for LED Based Visible Light Communication","authors":"Shen Yijie, Wu Yongsheng","doi":"10.1145/3291842.3291924","DOIUrl":"https://doi.org/10.1145/3291842.3291924","url":null,"abstract":"Efficient data transmission with LED is a topic of increasing interest in visible light communication. In this work, we proposed a half bit interleaved RZ-OOK modulation scheme. Compared to traditional RZ-OOK modulation, the data rate can be doubled by the proposed scheme. The experiment demonstrated that, with commercial LED (LED465E), the bit rate can achieve 160Mbit/s with the measured BER below the FEC limit of 3.8x10-3.","PeriodicalId":283197,"journal":{"name":"Proceedings of the 2nd International Conference on Telecommunications and Communication Engineering","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126861992","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
Carrier Frequency Offset Estimation of FTN Signaling Based on Adaptive Kalman Filter 基于自适应卡尔曼滤波的FTN信令载波频偏估计
Proceedings of the 2nd International Conference on Telecommunications and Communication Engineering Pub Date : 2018-11-28 DOI: 10.1145/3291842.3291879
Zhang Hao-liang, Meng Zhengke, Z. Shenghua
{"title":"Carrier Frequency Offset Estimation of FTN Signaling Based on Adaptive Kalman Filter","authors":"Zhang Hao-liang, Meng Zhengke, Z. Shenghua","doi":"10.1145/3291842.3291879","DOIUrl":"https://doi.org/10.1145/3291842.3291879","url":null,"abstract":"Faster-than-Nyquist (FTN) technology improves the transmission efficiency and spectrum efficiency of the system. However, the infinite length of intersymbol interference (ISI) introduced by FTN technology not only challenges the equalization of FTN signaling (FTNS), but also makes it difficult to synchronize the FTNS. Traditional carrier frequency offset (CFO) estimation methods will deteriorate in terms of threshold and accuracy. In order to overcome this difficulty, we propose an adaptive Kalman filter to further estimate the CFO of the FTNS after blind estimation using the traditional algorithm. Compared with the estimation without Kalman filter, the estimation after Kalman filter is more stable and accurate. And the adaptive Kalman filter has better performance in both anti-outliers and dynamic performance of the system, compared with Kalman filter.","PeriodicalId":283197,"journal":{"name":"Proceedings of the 2nd International Conference on Telecommunications and Communication Engineering","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128759204","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
Analog Realization of Wavelet Base Using AFSA 基于AFSA的小波基模拟实现
Proceedings of the 2nd International Conference on Telecommunications and Communication Engineering Pub Date : 2018-11-28 DOI: 10.1145/3291842.3291882
Lina Ma, Wenshan Zhao
{"title":"Analog Realization of Wavelet Base Using AFSA","authors":"Lina Ma, Wenshan Zhao","doi":"10.1145/3291842.3291882","DOIUrl":"https://doi.org/10.1145/3291842.3291882","url":null,"abstract":"This paper proposes a novel approximation method to realize wavelet base in analog domain. By means of mathematical model construction, the rational fractional approximation of the wavelet base is transformed into an optimization problem. And then, the artificial fish swarm algorithm is used to find the optimal solution. The Morlet wavelet is taken as an example to illustrate the design process of analog Morlet wavelet base. The experimental results show that the constructed analog wavelet base has higher approximation accuracy than that derived from the existing approximation method while keeping stable characteristic.","PeriodicalId":283197,"journal":{"name":"Proceedings of the 2nd International Conference on Telecommunications and Communication Engineering","volume":"69 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132474628","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
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