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

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Measurement-Based Massive MIMO Antenna Selection in Indoor Office Scenario at 3.52 GHz 3.52 GHz室内办公场景下基于测量的大规模MIMO天线选择
2018 IEEE 18th International Conference on Communication Technology (ICCT) Pub Date : 2018-10-01 DOI: 10.1109/ICCT.2018.8600120
Xiaonan Wang, Limin Xiao, Yan Zhang, Zunwen He
{"title":"Measurement-Based Massive MIMO Antenna Selection in Indoor Office Scenario at 3.52 GHz","authors":"Xiaonan Wang, Limin Xiao, Yan Zhang, Zunwen He","doi":"10.1109/ICCT.2018.8600120","DOIUrl":"https://doi.org/10.1109/ICCT.2018.8600120","url":null,"abstract":"Massive multiple-input-multiple-output (MIMO) offers huge advantages in terms of energy efficiency, spectral efficiency, robustness, and reliability and has been considered as a leading 5G technology candidate. However, high cost and energy consumption are major challenges in massive MIMO systems. Antenna selection at the base station side by reducing the number of radio-frequency (RF) chains is a practical and effective technology to solve high cost and energy consumption problems. In this paper, we investigate indoor massive MIMO antenna selection based on the measured data in a indoor office scenario at 3.52 GHz by using a uniform linear array (ULA) with 128 transmit (Tx) antennas and 7 receiving (Rx) users. A convex optimization algorithm is applied to select optimal Tx antenna subset by maximizing dirty-paper coding (DPC) capacity. Then, the antenna selection system performance is researched. The investigation shows that indoor antenna selection based on measured data can both improve the system performance and reduce the cost.","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":"131099191","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
Amharic Character Image Recognition 阿姆哈拉语字符图像识别
2018 IEEE 18th International Conference on Communication Technology (ICCT) Pub Date : 2018-10-01 DOI: 10.1109/ICCT.2018.8599888
B. Belay, T. Habtegebrial, D. Stricker
{"title":"Amharic Character Image Recognition","authors":"B. Belay, T. Habtegebrial, D. Stricker","doi":"10.1109/ICCT.2018.8599888","DOIUrl":"https://doi.org/10.1109/ICCT.2018.8599888","url":null,"abstract":"In this paper we introduce Convolutional Neural Network (CNN) based method for Amharic character image recognition. We also introduce a dataset for training purposes. The proposed method has less pre-processing steps and out per- forms the state-of-the-art by a large margin. Experiments were done on 80,000 Amharic character images which was generated with different degradation level. We systematically evaluated the performance of the recognition model and achieved the state-of- art performance with an average recognition accuracy of 92.71%.","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":"131124843","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: 17
Mobile Robot Location Algorithm Based on Improved Particle Filtering 基于改进粒子滤波的移动机器人定位算法
2018 IEEE 18th International Conference on Communication Technology (ICCT) Pub Date : 2018-10-01 DOI: 10.1109/ICCT.2018.8600004
Shuting Zhang
{"title":"Mobile Robot Location Algorithm Based on Improved Particle Filtering","authors":"Shuting Zhang","doi":"10.1109/ICCT.2018.8600004","DOIUrl":"https://doi.org/10.1109/ICCT.2018.8600004","url":null,"abstract":"To solve the simultaneous localization and mapping (SLAM) problem, many techniques have been proposed, and the Particle Filter (PF) is one of effective ways. However, the PF algorithm needs a large number of samples to approximate the posterior probability density of the system, which makes the algorithm complex. What's more, the judgment of resampling is imperfect. Based on this, an improved PF algorithm which introducing population diversity factor and genetic algorithm into the process of re-sampling is proposed in this paper. The effective sample size and the population diversity factor are used to determine whether to re-sampling. When re-sampling is needed, the genetic algorithm is used to optimize the particle set. The simulation result shows that estimation accuracy of the improved algorithm is better than that of traditional particles filter, not only in accuracy, but also in efficiency.","PeriodicalId":244952,"journal":{"name":"2018 IEEE 18th International Conference on Communication Technology (ICCT)","volume":"86 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":"121926644","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
Study on a Decision Method for Reconfiguration of Network Security Functions Based on Privilege Transition Graph 基于权限转移图的网络安全功能重构决策方法研究
2018 IEEE 18th International Conference on Communication Technology (ICCT) Pub Date : 2018-10-01 DOI: 10.1109/ICCT.2018.8600214
Jialin Wang, Wen Yu
{"title":"Study on a Decision Method for Reconfiguration of Network Security Functions Based on Privilege Transition Graph","authors":"Jialin Wang, Wen Yu","doi":"10.1109/ICCT.2018.8600214","DOIUrl":"https://doi.org/10.1109/ICCT.2018.8600214","url":null,"abstract":"The multiple security domains management and the security gateways that protect the security domain boundary are applied in space-ground integration information network, so we can adjust network security functions in the gateways dynamically by reconfiguration as the response to various security threats and malicious attacks. To solve the decision making problem about when to reconfigure and what to reconfigure, we presented privilege transition graph of internal security domain that can show us the vulnerabilities utilization between hosts in the domain. The algorithm combining forward breadth search and depth backtracking was proposed to get the attack paths from one host to key resources in the domain. And a quantification method for the risk of attack paths was presented. The method was tested which could provide effective data for recoufiguration decision.","PeriodicalId":244952,"journal":{"name":"2018 IEEE 18th International Conference on Communication Technology (ICCT)","volume":"94 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":"121940465","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 Real-Time Distributed Algorithm for Satellite Constellation Routing 卫星星座路由的实时分布式算法
2018 IEEE 18th International Conference on Communication Technology (ICCT) Pub Date : 2018-10-01 DOI: 10.1109/ICCT.2018.8600238
Chenyu Liu, Yongjian Liu
{"title":"A Real-Time Distributed Algorithm for Satellite Constellation Routing","authors":"Chenyu Liu, Yongjian Liu","doi":"10.1109/ICCT.2018.8600238","DOIUrl":"https://doi.org/10.1109/ICCT.2018.8600238","url":null,"abstract":"This paper presents a real-time distributed routing algorithm for satellite constellation. This algorithm divides the satellite cycle into as few time slices as possible according to the on-off condition of inter-orbit links of satellites, and the subnet of inter-satellite links is expanded to a plane, in each time slice the coordinates of satellites are mapped to the corresponding latitudes. Use the method of latitude comparison and combine the real-time inter-satellite link states to calculate the routing and the forward table for the next jump of the target in each satellite. The real-time inter-satellite link state is derived from the link state broadcast based on the breadth first tree algorithm, which guarantees the real-time updating of the link states. This algorithm is based on the combination of precalculation and distributed real-time onboard calculation, which aim to improve the real-time performance and reduce the onboard calculation load.","PeriodicalId":244952,"journal":{"name":"2018 IEEE 18th International Conference on Communication Technology (ICCT)","volume":"49 3","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120900972","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
A Novel Route Randomization Approach for Moving Target Defense 一种新的移动目标防御路径随机化方法
2018 IEEE 18th International Conference on Communication Technology (ICCT) Pub Date : 2018-10-01 DOI: 10.1109/ICCT.2018.8600062
Shaolei Wang, Ying Zhou, Ronghua Guo, Jing Du, J. Du
{"title":"A Novel Route Randomization Approach for Moving Target Defense","authors":"Shaolei Wang, Ying Zhou, Ronghua Guo, Jing Du, J. Du","doi":"10.1109/ICCT.2018.8600062","DOIUrl":"https://doi.org/10.1109/ICCT.2018.8600062","url":null,"abstract":"Route randomization is an important research focus for moving target defense which seeks to proactively and dynamically change the forwarding routes in the network. In this paper, the difficulties of implementing route randomization in traditional networks are analyzed. To solve these difficulties and achieve effective route randomization, a novel route randomization approach is proposed, which is implemented by adding a mapping layer between routers' physical interfaces and their corresponding logical addresses. The design ideas and the details of proposed approach are presented. The effectiveness and performance of proposed approach are verified and evaluated by corresponding experiments.","PeriodicalId":244952,"journal":{"name":"2018 IEEE 18th International Conference on Communication Technology (ICCT)","volume":"166 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":"126648026","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
Design and Analysis of an Ultra-wideband Frequency Selective Surface with Adjustable Stopband 一种带可调阻带的超宽带选频表面设计与分析
2018 IEEE 18th International Conference on Communication Technology (ICCT) Pub Date : 2018-10-01 DOI: 10.1109/ICCT.2018.8599998
Y. Song, Yan Zhang, Xiaochun Liu, Qian Wang, Jinhao Wang, Yan Tong, Ruobing Liang
{"title":"Design and Analysis of an Ultra-wideband Frequency Selective Surface with Adjustable Stopband","authors":"Y. Song, Yan Zhang, Xiaochun Liu, Qian Wang, Jinhao Wang, Yan Tong, Ruobing Liang","doi":"10.1109/ICCT.2018.8599998","DOIUrl":"https://doi.org/10.1109/ICCT.2018.8599998","url":null,"abstract":"In this study, a novel structure, which is applied to different metal layers of ultra-wideband frequency selective surfaces (FSS), is proposed. It has been found that by adjusting the size of the circular coupling metal pieces in the novel structure, a narrow stopband can be generated at different locations within the passband, which can be used to shield narrowband electromagnetic interference (EMI). In addition, the equivalent circuit model of the novel FSS is also given in this paper, and it provides references for more comprehensive understanding of the FSS’ s filtering mechanism and the improvement of subsequent performance.","PeriodicalId":244952,"journal":{"name":"2018 IEEE 18th International Conference on Communication Technology (ICCT)","volume":"125 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":"127259133","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
Performance and Implementation of Enhanced Multi CRC-LSC Polar Codes 增强型多CRC-LSC极性码的性能与实现
2018 IEEE 18th International Conference on Communication Technology (ICCT) Pub Date : 2018-10-01 DOI: 10.1109/ICCT.2018.8599907
Liyun Dai, Junhui Wang, Shiyuan Dong
{"title":"Performance and Implementation of Enhanced Multi CRC-LSC Polar Codes","authors":"Liyun Dai, Junhui Wang, Shiyuan Dong","doi":"10.1109/ICCT.2018.8599907","DOIUrl":"https://doi.org/10.1109/ICCT.2018.8599907","url":null,"abstract":"By adopting cyclic redundancy check (CRC), the block error rate (BLER) of polar code which were recently chosen to protect the channel information can be highly improved. In this paper, we pay more attention to the structure of CRC to improve the performance of finite length polar code. An enhanced multi CRC- list successive cancellation (LSC) decoding scheme by segmenting information vector using different generator polynomials is proposed. Simulation results show that the BLER performance of enhanced multi CRC-LSC polar codes over additive white Gaussian noise (AWGN) channel significantly outperforms the multi CRC-LSC ones with no increase in complexity. The results offer a useful direction for the future of wireless communications.","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":"124075967","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
Beidou Weak Signal Acquisition Algorithm Based on Envelope Replaced Differentially Coherent Integration 基于包络替代差分相干积分的北斗微弱信号采集算法
2018 IEEE 18th International Conference on Communication Technology (ICCT) Pub Date : 2018-10-01 DOI: 10.1109/ICCT.2018.8600096
Jihang Zhou, Manxi Wang, Xiaofan Yang, Minglei Li
{"title":"Beidou Weak Signal Acquisition Algorithm Based on Envelope Replaced Differentially Coherent Integration","authors":"Jihang Zhou, Manxi Wang, Xiaofan Yang, Minglei Li","doi":"10.1109/ICCT.2018.8600096","DOIUrl":"https://doi.org/10.1109/ICCT.2018.8600096","url":null,"abstract":"In order to capture the weak reflection signals in the sea non-cooperative detection system using Beidou satellite signals, the paper studied three existing weak signal accumulation techniques and summarized their advantages and disadvantages. In order to make use of the advantages of Differentially Coherent Integration and reduce computational complexity, the paper optimizes the detection of Differentially Coherent Integration and proposes the algorithm of Envelope Replaced Differentially Coherent Integration (ERDCI). Through the analysis of its detection probability and false alarm probability, the proposed algorithm is superior to the original algorithm. The new algorithm is less dependent on hardware and is suitable for use scenarios with limited hardware conditions.","PeriodicalId":244952,"journal":{"name":"2018 IEEE 18th International Conference on Communication Technology (ICCT)","volume":"426 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":"126723504","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
Noise Suppression Threshold Channel Estimation Method Using RC and SRRC Filters in OFDM Systems OFDM系统中基于RC和SRRC滤波器的噪声抑制阈值信道估计方法
2018 IEEE 18th International Conference on Communication Technology (ICCT) Pub Date : 2018-10-01 DOI: 10.1109/ICCT.2018.8600079
Mingtong Zhang, Xiao Zhou, Chengyou Wang
{"title":"Noise Suppression Threshold Channel Estimation Method Using RC and SRRC Filters in OFDM Systems","authors":"Mingtong Zhang, Xiao Zhou, Chengyou Wang","doi":"10.1109/ICCT.2018.8600079","DOIUrl":"https://doi.org/10.1109/ICCT.2018.8600079","url":null,"abstract":"Orthogonal frequency division multiplexing (OFDM) has been widely used in modern wireless communication systems. In OFDM system, channel estimation is a key technology to improve the system performance. However, most conventional channel estimation methods cannot suppress the noise effectively, which affects the quality of the final received OFDM signals. To solve this problem, this paper utilizes the raise cosine (RC) filter and square root raise cosine (SRRC) filter to suppress the inter-symbol-interference (ISI) and the noise in OFDM-RC and OFDM-SRRC systems. The proposed method first filters out the noise by using RC filter or SRRC filter, while obtaining the noise standard deviation as the threshold. Then, the impact of noise is further reduced by setting the noise suppression threshold. Simulation results are shown to verify the effectiveness of the OFDM-RC and OFDM-SRRC systems over multipath propagation conditions.","PeriodicalId":244952,"journal":{"name":"2018 IEEE 18th International Conference on Communication Technology (ICCT)","volume":"71 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":"127733634","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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