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2018 IEEE 18th International Conference on Communication Technology (ICCT)最新文献

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Comparison between Generalized Integrated Interleaved Codes and Generalized Error Location Codes 广义集成交错码与广义错误定位码的比较
2018 IEEE 18th International Conference on Communication Technology (ICCT) Pub Date : 2018-10-01 DOI: 10.1109/ICCT.2018.8599891
Wenjie Li, Jun Lin, Zhongfeng Wang
{"title":"Comparison between Generalized Integrated Interleaved Codes and Generalized Error Location Codes","authors":"Wenjie Li, Jun Lin, Zhongfeng Wang","doi":"10.1109/ICCT.2018.8599891","DOIUrl":"https://doi.org/10.1109/ICCT.2018.8599891","url":null,"abstract":"Generalized Integrated Interleaved (GII) codes and Generalized Error Location (GEL) codes are both multi-level codes., whose redundancy of each layer is shared by other layers. Original GII codes are defined with a specific conversion matrix., which is studied in detail in this paper. We generalize the conversion matrix for GII codes and make it possible to employ a matrix in row echelon form to reduce the computational complexity of matrix multiplications. It is also shown that with inner codes and outer codes over the same Galois Field., a GEL code degenerates into a GII code. Moreover., the decoding performance is analyzed and some GEL and GII codes are constructed to compare from the aspects of overhead and error performance.","PeriodicalId":244952,"journal":{"name":"2018 IEEE 18th International Conference on Communication Technology (ICCT)","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133117646","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: 2
Linear Erasure Block Codes over Either a Field of Rational Numbers Q or an Algebraic Structure Ψq 线性擦除块码在有理数Q或代数结构的领域Ψq
2018 IEEE 18th International Conference on Communication Technology (ICCT) Pub Date : 2018-10-01 DOI: 10.1109/ICCT.2018.8600217
Yehor Savchenko
{"title":"Linear Erasure Block Codes over Either a Field of Rational Numbers Q or an Algebraic Structure Ψq","authors":"Yehor Savchenko","doi":"10.1109/ICCT.2018.8600217","DOIUrl":"https://doi.org/10.1109/ICCT.2018.8600217","url":null,"abstract":"In this paper, we define a mathematical model of linear erasure block codes (k, C) for symbol erasure channels (SEC) that are built over either a field of rational numbers $Q$ or an algebraic structure $pmb{Psi q}$. We show the necessary condition for the codes (k, C) to be optimal, and we demonstrate that some of the already existing erasure codes may be considered as the specific cases of the codes (k, C) over a $pmb{Psi_{q}}$, such as Luby Transform, Raptor or Zigzag Decodable.","PeriodicalId":244952,"journal":{"name":"2018 IEEE 18th International Conference on Communication Technology (ICCT)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130384615","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 Novel Carrier Loop Based on Unscented Kalman Filter Methods for Tracking High Dynamic GPS Signals 一种基于无气味卡尔曼滤波的高动态GPS信号跟踪载波环路
2018 IEEE 18th International Conference on Communication Technology (ICCT) Pub Date : 2018-10-01 DOI: 10.1109/ICCT.2018.8600110
Zhiyong Tu, Tiejun Lu, Qiliang Chen
{"title":"A Novel Carrier Loop Based on Unscented Kalman Filter Methods for Tracking High Dynamic GPS Signals","authors":"Zhiyong Tu, Tiejun Lu, Qiliang Chen","doi":"10.1109/ICCT.2018.8600110","DOIUrl":"https://doi.org/10.1109/ICCT.2018.8600110","url":null,"abstract":"Optimal Kalman filtering theory has developed for many years. With the characteristics of unscented transformation, the unscented Kalman filtering (UKF) makes it possible to maintain locking with large Doppler frequency shift when the receiver works in high dynamic environment. A carrier tracking loop based on UKF with high accurate tracking performance, which can work in high dynamic environment, is put forward. This paper studies a novel feedback method of voltage-controlled oscillator in a carrier tracking loop based on UKF, which can improve the measurement accuracy and enhance the robustness of the UKF carrier tracking loop. Since the measured data has been modulated by navigation message, this paper amends the model of measurement equation to tally with the actual measured data. Finally, in a high dynamic environment with acceleration over 100g and normal signal strength, the measurement accuracy of carrier phase is better than 0.5mm, and the measurement accuracy of carrier frequency is better than 0.5HZ.","PeriodicalId":244952,"journal":{"name":"2018 IEEE 18th International Conference on Communication Technology (ICCT)","volume":"394 ","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114098962","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: 4
Method of Code Tracking Loop Bandwidth Stabilization Adjustment for Inter-satellite Ranging System 星间测距系统码跟踪环路带宽稳定调整方法
2018 IEEE 18th International Conference on Communication Technology (ICCT) Pub Date : 2018-10-01 DOI: 10.1109/ICCT.2018.8600164
Bei Ye, Chunhui Wang, Chao-jie Zhang, Zhong-he Jin
{"title":"Method of Code Tracking Loop Bandwidth Stabilization Adjustment for Inter-satellite Ranging System","authors":"Bei Ye, Chunhui Wang, Chao-jie Zhang, Zhong-he Jin","doi":"10.1109/ICCT.2018.8600164","DOIUrl":"https://doi.org/10.1109/ICCT.2018.8600164","url":null,"abstract":"In the inter-satellite ranging system based on pseudorandom code ranging, if delay lock loop (DLL) which is used for code tracking adopts fixed loop parameters, then a compromise must be made between tracking precision and dynamic performance. In order to overcome this shortcoming, this paper proposes a method of adjusting the loop bandwidth adaptively and steadily. The code tracking error, loop carrier-to-noise power ratio and dynamic stress are monitored in real time. Then the loop bandwidth is adjusted on the principle of minimizing the code tracking error. In the meanwhile, a series of limiting factors during bandwidth adjustment are taken into full consideration. As a result, the loop responds quickly to burst dynamic stress and ensures stable tracking throughout the bandwidth adjustment process. Finally, the validity of this method is verified by MATLAB simulations. The simulation results show that this method is stable in the case of burst dynamic stress and during bandwidth adjustment process. The need of tracking precision and dynamic performance are both taken into account.","PeriodicalId":244952,"journal":{"name":"2018 IEEE 18th International Conference on Communication Technology (ICCT)","volume":"113 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114444136","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 Microwave Interference Cancellation System Based on Down-conversion Adaptive Control 基于下变频自适应控制的微波干扰抵消系统
2018 IEEE 18th International Conference on Communication Technology (ICCT) Pub Date : 2018-10-01 DOI: 10.1109/ICCT.2018.8600050
Huanding Qin, Jin Meng, Fangmin He, Qing Wang
{"title":"A Microwave Interference Cancellation System Based on Down-conversion Adaptive Control","authors":"Huanding Qin, Jin Meng, Fangmin He, Qing Wang","doi":"10.1109/ICCT.2018.8600050","DOIUrl":"https://doi.org/10.1109/ICCT.2018.8600050","url":null,"abstract":"In the circuit design of interference cancellation systems based on Least Mean Square (LMS) algorithm, a mixer is required to realize the correlation calculation between the error signal and the reference signal. However, the DC offset of the mixer is hard to correct. Therefore, we propose a microwave interference cancellation system based on downconversion adaptive control (MICS-DCAD) of which the principle is to down-convert the microwave signals (both the error signal and the reference signal) to ultrashort wave band and use Gilbert multiplier for calculating the correlation. The null shift of the Gilbert multiplier is mainly temperature dependent, which facilitates accurate compensation and avoids the problem of DC offset suppression. We present a mathematical model to analyze the performance of MICS-DCAD. Experimental results are also provided to verify theoretical model as well as the feasibility of the proposed method.","PeriodicalId":244952,"journal":{"name":"2018 IEEE 18th International Conference on Communication Technology (ICCT)","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115135841","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: 3
Signalling Overhead analysis of Small Data Transmission for Machine Type Communication 机型通信小数据传输信令开销分析
2018 IEEE 18th International Conference on Communication Technology (ICCT) Pub Date : 2018-10-01 DOI: 10.1109/ICCT.2018.8600095
Shangjing Lin, Jianguo Yu, Xiaowei Jiang
{"title":"Signalling Overhead analysis of Small Data Transmission for Machine Type Communication","authors":"Shangjing Lin, Jianguo Yu, Xiaowei Jiang","doi":"10.1109/ICCT.2018.8600095","DOIUrl":"https://doi.org/10.1109/ICCT.2018.8600095","url":null,"abstract":"One of the main characteristics of Machine Type Communication (MTC) is small data transmissions. This feature exhibited in MTC applications have the potential to cause significant signaling overheads. In this paper, we firstly identify the typical characteristics of MTC. What's more, we evaluate how RRC inactivity timer values affect RRC connection frequency (and hence signalling load). Besides, we also proposed several feasible solutions which can reduce the signalling overhead and discuss their pros and cons.","PeriodicalId":244952,"journal":{"name":"2018 IEEE 18th International Conference on Communication Technology (ICCT)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115443251","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: 4
A Sparse Representation of Array Covariance Vectors for DOA Estimation with Unknown Mutual Coupling 一种用于未知互耦DOA估计的阵列协方差向量稀疏表示
2018 IEEE 18th International Conference on Communication Technology (ICCT) Pub Date : 2018-10-01 DOI: 10.1109/ICCT.2018.8599977
Dandan Meng, Xianpeng Wang, Mengxing Huang, Chong Shen, Yuehao Guo
{"title":"A Sparse Representation of Array Covariance Vectors for DOA Estimation with Unknown Mutual Coupling","authors":"Dandan Meng, Xianpeng Wang, Mengxing Huang, Chong Shen, Yuehao Guo","doi":"10.1109/ICCT.2018.8599977","DOIUrl":"https://doi.org/10.1109/ICCT.2018.8599977","url":null,"abstract":"The effect of unknown mutual coupling can degrade the direction of arrival (DOA) estimation performance. In this paper, a sparse representation method of array covariance vectors (SRACV) based on a new data model is proposed to settle above problem for uniform linear array (ULA). In our proposed method, an efficient block sparse representation model is firstly constructed without the effect of unknown mutual coupling by using the banded complex symmetric Toeplitz structure of mutual coupling. Then a SRACV algorithm is proposed, in which the DOA estimation is estimated by searching the block sparse coefficients of the array covariance vector. The proposed method not only avoids the loss of array aperture, but also can perform well and get superior DOA estimation performance under the condition of unknown mutual coupling. Simulation experiments demonstrate that the superiority of our proposed method with unknown mutual coupling.","PeriodicalId":244952,"journal":{"name":"2018 IEEE 18th International Conference on Communication Technology (ICCT)","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124924576","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: 2
Hybrid Acoustic, Wireless Optical and Fiber-optic Underwater Cellular Mobile Communication Networks 混合声学，无线光学和光纤水下蜂窝移动通信网络
2018 IEEE 18th International Conference on Communication Technology (ICCT) Pub Date : 2018-10-01 DOI: 10.1109/ICCT.2018.8599957
Hongxi Yin, Yanfang Li, Fangyuan Xing, Bin Wu, Zhiheng Zhou, Wenbo Zhang
{"title":"Hybrid Acoustic, Wireless Optical and Fiber-optic Underwater Cellular Mobile Communication Networks","authors":"Hongxi Yin, Yanfang Li, Fangyuan Xing, Bin Wu, Zhiheng Zhou, Wenbo Zhang","doi":"10.1109/ICCT.2018.8599957","DOIUrl":"https://doi.org/10.1109/ICCT.2018.8599957","url":null,"abstract":"A novel underwater cellular mobile communication network by incorporating acoustic wave, wireless light and optical-fiber, and its protocol architecture are proposed. A hardware circuit module for the Ethernet protocol conversion is designed besides developed underwater optical wireless transmitter and receiver. A variety of media including data, voice and video, are transmitted on the underwater optical wireless Ethernet established by us.","PeriodicalId":244952,"journal":{"name":"2018 IEEE 18th International Conference on Communication Technology (ICCT)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125310990","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: 12
A Comparison of PCA Based Imaging Methods for the Multireceiver SAS 基于PCA的多接收机SAS成像方法的比较
2018 IEEE 18th International Conference on Communication Technology (ICCT) Pub Date : 2018-10-01 DOI: 10.1109/ICCT.2018.8600142
Xuebo Zhang, Cheng Tan
{"title":"A Comparison of PCA Based Imaging Methods for the Multireceiver SAS","authors":"Xuebo Zhang, Cheng Tan","doi":"10.1109/ICCT.2018.8600142","DOIUrl":"https://doi.org/10.1109/ICCT.2018.8600142","url":null,"abstract":"Based on the phase centre approximation (PCA), the imagery of the multireceiver synthetic aperture sonar (SAS) can be converted to the data processing of the monostatic SAS. When it comes to the monostatic conversion, there are two methods, i.e. the conversion in the 2-D space domain and that in the Doppler domain. This paper summarizes two preprocessing methods. Then, the simulations with the uniform and nonuniform sampling cases are used to demonstrate both preprocessing methods. The imaging results show that the preprocessing in the Doppler domain can be widely used as the imaging performance is superior to that with the preprocessing in the 2-D space domain.","PeriodicalId":244952,"journal":{"name":"2018 IEEE 18th International Conference on Communication Technology (ICCT)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126455606","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: 3
Hellinger Distance Based Conditional Variational Auto-Encoder and Its Application in Raw Audio Generation 基于Hellinger距离的条件变分自编码器及其在原始音频生成中的应用
2018 IEEE 18th International Conference on Communication Technology (ICCT) Pub Date : 2018-10-01 DOI: 10.1109/ICCT.2018.8600275
Yutian Wang, T. Hu, Zheng Wang, Juanjuan Cai, Huaichang Du
{"title":"Hellinger Distance Based Conditional Variational Auto-Encoder and Its Application in Raw Audio Generation","authors":"Yutian Wang, T. Hu, Zheng Wang, Juanjuan Cai, Huaichang Du","doi":"10.1109/ICCT.2018.8600275","DOIUrl":"https://doi.org/10.1109/ICCT.2018.8600275","url":null,"abstract":"Nowadays, audio generation plays an important role in human-computer interactive applications. However, the audio generated by machine is far from nature sound, especially in expressiveness and complexity. Currently, conditional variational Auto-encoder (cVAE) has achieved excellent results in data generation, but original cVAE cannot avoid the defects caused by KL divergence which used in stochastic distribution measurement. This paper introduced Hellinger distance into cVAE model. First of all, the experiment shows that using Hellinger distance can improve the weakness of KL divergence effectively. And then, the relationship between the latent space parameters and the generated music quality is analyzed by experiments, and we found the best generative parameter is the distribution centroid. Finally, the generated music is subjectively evaluated and the results show that it is significantly better than the original model.","PeriodicalId":244952,"journal":{"name":"2018 IEEE 18th International Conference on Communication Technology (ICCT)","volume":"103 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128254526","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
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