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The 2011 International Conference on Advanced Technologies for Communications (ATC 2011)最新文献

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Configurations and performance evaluations for a long-delay multipath interference based on the combinational use of an adaptive array antenna and multipath equalizers 基于组合使用自适应阵列天线和多径均衡器的长延迟多径干扰配置和性能评估
The 2011 International Conference on Advanced Technologies for Communications (ATC 2011) Pub Date : 2011-09-26 DOI: 10.1109/ATC.2011.6027475
T. Iwamatsu, M. Umeda, K. Wakasugi
{"title":"Configurations and performance evaluations for a long-delay multipath interference based on the combinational use of an adaptive array antenna and multipath equalizers","authors":"T. Iwamatsu, M. Umeda, K. Wakasugi","doi":"10.1109/ATC.2011.6027475","DOIUrl":"https://doi.org/10.1109/ATC.2011.6027475","url":null,"abstract":"Long-delay multipath interference is defined as a delayed signal located outside the guard interval of OFDM systems. An adaptive array antenna is often used to suppress long-delay multipath interference; however, the performance degrades when the desired and interference signals come from nearly the same direction. In these situations, a multipath equalizer in the time domain is very effective for suppressing the interference signal. In this paper, we propose three configurations based on a combinational use of an adaptive array antenna and a multipath equalizer as a remedy for long-delay multipath interference. We evaluated the performance using a computer simulation. The results show that excellent performance can be achieved even when the directions of desired and interference signals are close as well as when the interference signal comes from arbitrary directions.","PeriodicalId":221905,"journal":{"name":"The 2011 International Conference on Advanced Technologies for Communications (ATC 2011)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131684723","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
Toward a Vietnamese facial expression recognition system for human-robot interaction 面向人机交互的越南面部表情识别系统研究
The 2011 International Conference on Advanced Technologies for Communications (ATC 2011) Pub Date : 2011-09-26 DOI: 10.1109/ATC.2011.6027478
Thi-Lan Le, Van-Thai Dong
{"title":"Toward a Vietnamese facial expression recognition system for human-robot interaction","authors":"Thi-Lan Le, Van-Thai Dong","doi":"10.1109/ATC.2011.6027478","DOIUrl":"https://doi.org/10.1109/ATC.2011.6027478","url":null,"abstract":"Nonverbal behaviors such as facial expression, gesture that play an important role in human-human interaction, are not taken into account in human-robot interaction for social and service robot. The aim of this paper is to present our work for Vietnamese facial expression recognition including facial expression database building, face detection and facial expression recognition. Our main contributions in this paper are a Vietnamese facial expression database and preliminary results for face detection and facial expression recognition.","PeriodicalId":221905,"journal":{"name":"The 2011 International Conference on Advanced Technologies for Communications (ATC 2011)","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131600998","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 scheme of 2-D optical code label for core GMPLS networks 一种用于GMPLS核心网的二维光码标签新方案
The 2011 International Conference on Advanced Technologies for Communications (ATC 2011) Pub Date : 2011-09-26 DOI: 10.1109/ATC.2011.6027453
N. Dang, H. T. Nguyen, H. Pham, Ban T. Nguyen, A. Pham
{"title":"A novel scheme of 2-D optical code label for core GMPLS networks","authors":"N. Dang, H. T. Nguyen, H. Pham, Ban T. Nguyen, A. Pham","doi":"10.1109/ATC.2011.6027453","DOIUrl":"https://doi.org/10.1109/ATC.2011.6027453","url":null,"abstract":"The standard core GMPLS networks consist of two layers, Fiber Switch Capable (FSC) and Wavelength Switch Capable (LSC). To extend the core switch capacity, code switch capable (CSC) layer has been added. The CSC layer, however, induces the complexity of the networks. In this paper, we propose a novel scheme of two-dimensional (2-D) optical code label for core GMPLS networks. In our proposal, the LSC layer and CSC layer are combined into one, i.e., 2-D CSC layer. The complexity of the GMPLS networks is therefore reduced while the core switch capacity is still enhanced. In addition, to the mitigate multiple-access interference (MAI), we propose to use optical hard-limiters (OHLs) at the core switches. Numerical results show that the throughput is increased significantly and able to reach the peak value.","PeriodicalId":221905,"journal":{"name":"The 2011 International Conference on Advanced Technologies for Communications (ATC 2011)","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116769754","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
Secure finite state integer arithmetic codes 安全有限状态整数算术码
The 2011 International Conference on Advanced Technologies for Communications (ATC 2011) Pub Date : 2011-09-26 DOI: 10.1109/ATC.2011.6027424
H. Moradmand, A. Payandeh
{"title":"Secure finite state integer arithmetic codes","authors":"H. Moradmand, A. Payandeh","doi":"10.1109/ATC.2011.6027424","DOIUrl":"https://doi.org/10.1109/ATC.2011.6027424","url":null,"abstract":"In this paper finite state characteristic of integer arithmetic codes (FSAC) is combined with prefix free characteristic of Huffman codes to yield security in source codes. Some random jumps are inserted in transition sequence of state diagram to provide security. Huffman codes are used to make possible tracking and therefore decoding in jump instants.","PeriodicalId":221905,"journal":{"name":"The 2011 International Conference on Advanced Technologies for Communications (ATC 2011)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125196865","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
Toward a model of Barkhausen noise measurement system 巴克豪森噪声测量系统模型研究
The 2011 International Conference on Advanced Technologies for Communications (ATC 2011) Pub Date : 2011-09-26 DOI: 10.1109/ATC.2011.6027494
Thi Minh Tu Bui
{"title":"Toward a model of Barkhausen noise measurement system","authors":"Thi Minh Tu Bui","doi":"10.1109/ATC.2011.6027494","DOIUrl":"https://doi.org/10.1109/ATC.2011.6027494","url":null,"abstract":"Barkhausen Noise Analysis (BNA) method is one of non-destructive testing techniques. It allows evaluating the properties of a material, component or system without causing damage. However, the comparison between experimental results from different research groups is limited due to differences in experimental conditions. This paper aims to provide a Barkhausen noise measuring system model, taking into account all system's elements, so that those differences can be eliminated, hence allowing the comparison between “true” Barkhausen signals.","PeriodicalId":221905,"journal":{"name":"The 2011 International Conference on Advanced Technologies for Communications (ATC 2011)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121730635","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
Incremental cooperative diversity for wireless networks under opportunistic spectrum access 机会频谱接入下无线网络的增量合作分集
The 2011 International Conference on Advanced Technologies for Communications (ATC 2011) Pub Date : 2011-09-26 DOI: 10.1109/ATC.2011.6027449
Vo Nguyen Quoc Bao, Tuan-Duc Nguyen, D. Hoang
{"title":"Incremental cooperative diversity for wireless networks under opportunistic spectrum access","authors":"Vo Nguyen Quoc Bao, Tuan-Duc Nguyen, D. Hoang","doi":"10.1109/ATC.2011.6027449","DOIUrl":"https://doi.org/10.1109/ATC.2011.6027449","url":null,"abstract":"This paper analyzes the performance of incremental cooperative networks under opportunistic spectrum access where the best relay opportunistically borrows spectrum allocated to a primary user to help the source transmission if the direct link is below a given threshold. Specially, we provide the system outage probability and bit error probability derived in closed-form expression over Rayleigh fading channels. Theoretical analysis and computer simulation are in good agreement showing that the proposed system always outperforms direct transmission and full diversity gain cannot be achieved under opportunistic spectrum access.","PeriodicalId":221905,"journal":{"name":"The 2011 International Conference on Advanced Technologies for Communications (ATC 2011)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133929584","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: 6
Dual-band bandpass filter using quarter-wavelength resonator with controllable bandwidths and good selectivity 采用四分之一波长谐振腔的双带带通滤波器，带宽可控，选择性好
The 2011 International Conference on Advanced Technologies for Communications (ATC 2011) Pub Date : 2011-09-26 DOI: 10.1109/ATC.2011.6027466
MinhTan Doan, W. Che
{"title":"Dual-band bandpass filter using quarter-wavelength resonator with controllable bandwidths and good selectivity","authors":"MinhTan Doan, W. Che","doi":"10.1109/ATC.2011.6027466","DOIUrl":"https://doi.org/10.1109/ATC.2011.6027466","url":null,"abstract":"A compact microstrip dual-band bandpass filter (BPF) using quarter-wavelength resonator is proposed in this paper. By tuning the length and width of quarter-wavelength line, two center frequencies can be easily adjusted to the desired value. Furthermore, new structure of couple-line is introduced to produce five transmission zeroes (TZ) at the adjacent two passbands. Thus, the bandwidths of this filter are controllable and good selectivity. Two passbands are designed to operate at 2.4 GHz and 3.5 GHz, respectively. A prototype of dual-band bandpass filter is designed and fabricated for demonstration, good agreement is observed between the simulation and experiments.","PeriodicalId":221905,"journal":{"name":"The 2011 International Conference on Advanced Technologies for Communications (ATC 2011)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134242363","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
Spread spectrum in chaotic compressed sensing with application to MRI 混沌压缩感知中的扩频及其在MRI中的应用
The 2011 International Conference on Advanced Technologies for Communications (ATC 2011) Pub Date : 2011-09-26 DOI: 10.1109/ATC.2011.6027489
Duc-Tan Tran, Linh-Trung Nguyen, Minh-Chinh Truong, M. Luong
{"title":"Spread spectrum in chaotic compressed sensing with application to MRI","authors":"Duc-Tan Tran, Linh-Trung Nguyen, Minh-Chinh Truong, M. Luong","doi":"10.1109/ATC.2011.6027489","DOIUrl":"https://doi.org/10.1109/ATC.2011.6027489","url":null,"abstract":"This paper concerns the deterministic and structured designs of the measurement matrix in compressed sensing (CS). The deterministic design is approached using chaotic sequences while the structured one is with a spread-spectrum technique using chirp modulation. We propose to combine these two approaches to take advantage of the simple hardware implementation of chaotic sequences, and of reduced the mutual coherence by a chirp modulation, which spreads the data in the acquired domain. The method is illustrated by the well-known application of CS for fast acquisition in magnetic resonance imaging (MRI). Results and performance comparison are provided by numerical simulation, showing that the proposed method outperforms state-of-the-art CS techniques for MRI acquisition in terms of image reconstruction quality.","PeriodicalId":221905,"journal":{"name":"The 2011 International Conference on Advanced Technologies for Communications (ATC 2011)","volume":"8 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133246618","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 scalable Wi-Fi based localization approach 可扩展的基于Wi-Fi的本地化方法
The 2011 International Conference on Advanced Technologies for Communications (ATC 2011) Pub Date : 2011-09-26 DOI: 10.1109/ATC.2011.6027451
T. Le, N. Nguyen
{"title":"A scalable Wi-Fi based localization approach","authors":"T. Le, N. Nguyen","doi":"10.1109/ATC.2011.6027451","DOIUrl":"https://doi.org/10.1109/ATC.2011.6027451","url":null,"abstract":"This paper proposes a scalable method which allows deploying the fingerprint Wi-Fi localization algorithm for different devices. The original fingerprint localization algorithm performs accurately only if the device used in the testing phase is the same as the device used in the training phase. When a different device is used in the testing phase, a time-consuming re-training step (in the order of hours or days) is required to achieve the equivalent degree of accuracy. Our proposed approach replaces the re-training step with a short period of calibration (in the order of a few minutes), which can be done transparently to the user. To validate our approach, we collected data from a large scale experiment (14 laptops and 2 smartphones with 224-hour of collected data) to evaluate the performance.","PeriodicalId":221905,"journal":{"name":"The 2011 International Conference on Advanced Technologies for Communications (ATC 2011)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126106080","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: 6
A method to enhance the reliability of the local spectrum sensing 一种提高局部频谱感知可靠性的方法
The 2011 International Conference on Advanced Technologies for Communications (ATC 2011) Pub Date : 2011-09-26 DOI: 10.1109/ATC.2011.6027440
T. Tran, H. Kong
{"title":"A method to enhance the reliability of the local spectrum sensing","authors":"T. Tran, H. Kong","doi":"10.1109/ATC.2011.6027440","DOIUrl":"https://doi.org/10.1109/ATC.2011.6027440","url":null,"abstract":"This paper is focused on analyzing the effects of primary user (PU) signal arrival in the sensing interval on the local spectrum sensing performance. The probability for signal arrival at a sample in the sensing time is uniformly distributed. In this case, the performance degradation of the conventional energy detection (CED) method is analyzed. Furthermore, in order to enhance performance, an approach of estimating the signal arrival time is proposed to cooperate with the composite energy detection. The mathematical analysis and numerical simulation are employed to investigate and show the resulted spectrum sensing performance.","PeriodicalId":221905,"journal":{"name":"The 2011 International Conference on Advanced Technologies for Communications (ATC 2011)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130491419","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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