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

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Evaluation of effective conductivity of copper post and transmission losses of post-wall waveguide in millimeter wave band 毫米波波段铜柱有效电导率及后壁波导传输损耗的评价
The 2011 International Conference on Advanced Technologies for Communications (ATC 2011) Pub Date : 2011-09-26 DOI: 10.1109/ATC.2011.6027463
T. Tran, J. Hirokawa
{"title":"Evaluation of effective conductivity of copper post and transmission losses of post-wall waveguide in millimeter wave band","authors":"T. Tran, J. Hirokawa","doi":"10.1109/ATC.2011.6027463","DOIUrl":"https://doi.org/10.1109/ATC.2011.6027463","url":null,"abstract":"This paper presents a measurement method for determining the effective conductivity σp of copper posts in a copper-clad dielectric substrate in the millimeter-wave region. The conductivity is indirectly evaluated from measured resonant frequencies and unloaded Q values of a number of Whispering Gallery modes excited in a post-wall circular resonator with a large diameter of 10 – 30 wavelengths. We measure σp in 40 – 51 GHz band. The measured σp of the copper post decreases with the increase in the frequency. We confirm the measured results by comparing between the calculated results and the measured results of transmission losses for post-wall waveguides.","PeriodicalId":221905,"journal":{"name":"The 2011 International Conference on Advanced Technologies for Communications (ATC 2011)","volume":"46 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":"130017853","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 reliable and energy efficient routing protocol in industrial wireless sensor networks 工业无线传感器网络中一种可靠且节能的路由协议
The 2011 International Conference on Advanced Technologies for Communications (ATC 2011) Pub Date : 2011-09-26 DOI: 10.1109/ATC.2011.6027429
Myung-Kyun Kim, H. Ngo
{"title":"A reliable and energy efficient routing protocol in industrial wireless sensor networks","authors":"Myung-Kyun Kim, H. Ngo","doi":"10.1109/ATC.2011.6027429","DOIUrl":"https://doi.org/10.1109/ATC.2011.6027429","url":null,"abstract":"This paper proposes a reliable an energy efficient routing protocol for transmitting periodic packets on industrial wireless sensor networks. For reliable transmission of periodic packets, the proposed protocol chooses the path has highest end-to-end packet reception rate (e2e_PRR) to transmit data packets. Also, a mechanism is used to reduce the number of control packets. The simulation result has shown that the proposed protocol has a better performance in terms of reliability and control packet overhead than the previous routing protocols.","PeriodicalId":221905,"journal":{"name":"The 2011 International Conference on Advanced Technologies for Communications (ATC 2011)","volume":"80 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":"133097319","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
Distributed defense of distributed DoS using pushback and communicate mechanism 基于回推和通信机制的分布式DoS防御
The 2011 International Conference on Advanced Technologies for Communications (ATC 2011) Pub Date : 2011-09-26 DOI: 10.1109/ATC.2011.6027461
Trung Hai Nguyen, Cao Thanh Doan, Van Quan Nguyen, Thi Huyen Trang Nguyen, Minh Phuong Doan
{"title":"Distributed defense of distributed DoS using pushback and communicate mechanism","authors":"Trung Hai Nguyen, Cao Thanh Doan, Van Quan Nguyen, Thi Huyen Trang Nguyen, Minh Phuong Doan","doi":"10.1109/ATC.2011.6027461","DOIUrl":"https://doi.org/10.1109/ATC.2011.6027461","url":null,"abstract":"DDoS is one of the most dangerous methods to attack victim network because it uses a vast quantity of distributed agents to make victim paralyze. This paper gives a DDoS defense method which is based on “pushback and communicate” idea (PaC method). When the gateway of victim detects DDoS attack, it has to listen on interfaces to define the neighbors from which DDoS packets come. Those neighbors will receive DDoS information and do same things the victim's gateway does. By repeating that work, PaC can find the exact way DDoS packets had passed through. All routers then continue creating their own filters before sending DDoS information to their next neighbors.","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":"130860078","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: 9
Improving the operation of optoelectronic oscillator by stabilizing the electrooptic modulator 通过稳定电光调制器来改善光电振荡器的工作
The 2011 International Conference on Advanced Technologies for Communications (ATC 2011) Pub Date : 2011-09-26 DOI: 10.1109/ATC.2011.6027454
D. Bui, V. Y. Vu, B. Journet
{"title":"Improving the operation of optoelectronic oscillator by stabilizing the electrooptic modulator","authors":"D. Bui, V. Y. Vu, B. Journet","doi":"10.1109/ATC.2011.6027454","DOIUrl":"https://doi.org/10.1109/ATC.2011.6027454","url":null,"abstract":"In an optoelectronic oscillator (OEO) system, it is crucial to keep the frequency as constant as possible. Electrooptic modulator (EOM) is a key component in this system having a big influence on OEO stabilization. The EOM is characterized by its voltage to optical output transfer function which unfortunately undergoes a drift during time leading to changes of the EOM characteristics and finally to a drift of the oscillation frequency. A twofold instrumentation system has been developed for controlling the EOM. Its first part is dedicated to the EOM temperature control. By using this part, the OEO frequency drift can be reduced by a factor 1.39 for one hour duration. The second part of the instrumentation system is used for compensating the drift of the EOM transfer function. With these two parts operating simultaneously, the frequency drift reduction can reach a factor up to 3.44 for one hour. These results demonstrate the efficiency of the compensation method.","PeriodicalId":221905,"journal":{"name":"The 2011 International Conference on Advanced Technologies for Communications (ATC 2011)","volume":"26 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":"121189691","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 scheme of Dual Carrier Modulation with Soft-decoding for MB-OFDM MIMO systems 一种MB-OFDM MIMO系统的双载波调制软解码方案
The 2011 International Conference on Advanced Technologies for Communications (ATC 2011) Pub Date : 2011-09-26 DOI: 10.1109/ATC.2011.6027471
T. Nguyen, ThanhTuan Nguyen, V. T. Tran, Bang Giang Truong Vu, V. Nguyen
{"title":"A scheme of Dual Carrier Modulation with Soft-decoding for MB-OFDM MIMO systems","authors":"T. Nguyen, ThanhTuan Nguyen, V. T. Tran, Bang Giang Truong Vu, V. Nguyen","doi":"10.1109/ATC.2011.6027471","DOIUrl":"https://doi.org/10.1109/ATC.2011.6027471","url":null,"abstract":"The basic structure of the Multi-Band Orthogonal Frequency Division Multiplexing (MB-OFDM) Ultra-Wide Band (UWB) System is discussed in this paper. The fixed-point simulation platform using the WiMedia Alliance proposed by ECMA 368 standards has been implemented. An extension of the physical layer using the Alamouti method to a Multiple-Input Multiple-Output (MIMO) system is also presented. Based on the theoretical Dual Carrier Modulation (DCM) supported by Media Alliance, we propose a scheme of the DCM-Modulation and DCM-Demodulation with Soft-decoding for a MB-OFDM MIMO system. The system performance is analyzed using the Saleh-Valenzuela channel model in terms of the bits error rate and the transmission range for indoor environments.","PeriodicalId":221905,"journal":{"name":"The 2011 International Conference on Advanced Technologies for Communications (ATC 2011)","volume":"26 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":"115606311","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: 10
Efficient and reliable camera based multiple-choice test grading system 高效可靠的基于摄像头的选择题考试评分系统
The 2011 International Conference on Advanced Technologies for Communications (ATC 2011) Pub Date : 2011-09-26 DOI: 10.1109/ATC.2011.6027482
Tien Dzung Nguyen, Quyet Hoang Manh, Phuong Bui Minh, Long Nguyen Thanh, T. Hoang
{"title":"Efficient and reliable camera based multiple-choice test grading system","authors":"Tien Dzung Nguyen, Quyet Hoang Manh, Phuong Bui Minh, Long Nguyen Thanh, T. Hoang","doi":"10.1109/ATC.2011.6027482","DOIUrl":"https://doi.org/10.1109/ATC.2011.6027482","url":null,"abstract":"This paper proposes a new idea for grading multiple-choice test which is based on a camera with reliability and efficiency. The bounds of the answer sheet image captured by the camera is first allocated using Hough transform and then skew-corrected into the proper orientation, followed by the normalization to a given size. Next, the tick mark corresponding to the answer for each question can be recognized by allocation of the mask which wraps the answer area. The experimental results showed that the proposed system has achieved significant improvement in performance in terms of accuracy, reliability, and elapsed time compared with those of the conventional optical mark recognition (OMR) systems. The proposed system also demonstrated that it can also achieve high accuracy of 99.7% while using non-transoptic answer sheet paper with lower cost.","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":"128396105","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: 29
SVM classifier based face detection system using BDIP and BVLC moments 基于BDIP和BVLC矩的SVM分类器人脸检测系统
The 2011 International Conference on Advanced Technologies for Communications (ATC 2011) Pub Date : 2011-09-26 DOI: 10.1109/ATC.2011.6027481
Tien Dzung Nguyen, Quy Tran Thanh, Thang Man Duc, Trang Nguyen Quynh, T. Hoang
{"title":"SVM classifier based face detection system using BDIP and BVLC moments","authors":"Tien Dzung Nguyen, Quy Tran Thanh, Thang Man Duc, Trang Nguyen Quynh, T. Hoang","doi":"10.1109/ATC.2011.6027481","DOIUrl":"https://doi.org/10.1109/ATC.2011.6027481","url":null,"abstract":"In this paper, a support vector machine (SVM) classifier has been used to detect a face in an authentication application. A face candidate is first allocated from the input frame and then normalized to 200×200 pixels images. The textureness of candidates is then measured by the combination of BDIP and BVLC moments and classified into face and non-face ones by a SVM classifier which is known as efficient classification tool. In SVM learning, a DB of 2500 faces and 2500 non-faces has been created under different light conditions and face expressions. The experiments showed that the effectiveness of the used features for SVM based classification issue in the face-detection system.","PeriodicalId":221905,"journal":{"name":"The 2011 International Conference on Advanced Technologies for Communications (ATC 2011)","volume":"3 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":"130669904","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: 5
Some study on design novel compact antenna for WLAN systems 无线局域网系统中新型紧凑型天线的设计研究
The 2011 International Conference on Advanced Technologies for Communications (ATC 2011) Pub Date : 2011-09-26 DOI: 10.1109/ATC.2011.6027486
M. Tran
{"title":"Some study on design novel compact antenna for WLAN systems","authors":"M. Tran","doi":"10.1109/ATC.2011.6027486","DOIUrl":"https://doi.org/10.1109/ATC.2011.6027486","url":null,"abstract":"This paper concentrates on studying, designing and manufacturing a three port antenna applied for MIMO systems. This antenna can work in 2.4 GHz and 5.2 GHz frequencies, which are used for WLAN. Antenna is printed on FR4 substrate with size of 50 mm × 50 mm, thickness of 1.2 mm and relative permittivity of 4.4. The propose antenna is experimentally studied.","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":"128863087","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
Leakage-resilient CCA2 public-key encryption from 4-wise independent hash functions 4-wise独立哈希函数的防泄漏CCA2公钥加密
The 2011 International Conference on Advanced Technologies for Communications (ATC 2011) Pub Date : 2011-09-26 DOI: 10.1109/ATC.2011.6027425
M. H. Nguyen, Kenji Yasunaga, Keisuke Tanaka
{"title":"Leakage-resilient CCA2 public-key encryption from 4-wise independent hash functions","authors":"M. H. Nguyen, Kenji Yasunaga, Keisuke Tanaka","doi":"10.1109/ATC.2011.6027425","DOIUrl":"https://doi.org/10.1109/ATC.2011.6027425","url":null,"abstract":"We consider the problem of constructing public-key encryption schemes that are resilient to chosen-ciphertext and key-leakage attach. In this paper, we present a generic construction of public-key encryption that is resilient to this attack from any 1-universal hash proof system and any 4-wise independent hash function. As shown in the paper [6] they can be instantiated with efficient schemes based on standard intractability assumptions such as Decisional Diffie-Hellman, Quadratic Residuosity, and Pailliers Decisional Composite Residuosity.","PeriodicalId":221905,"journal":{"name":"The 2011 International Conference on Advanced Technologies for Communications (ATC 2011)","volume":"67 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":"122607055","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
Design and fabrication of UHF RFID tag 超高频RFID标签的设计与制作
The 2011 International Conference on Advanced Technologies for Communications (ATC 2011) Pub Date : 2011-09-26 DOI: 10.1109/ATC.2011.6027444
H. Vuong, H. P. Phan, T. Nguyen-Tran, M. Dang, Nguyen Dat Son, N. Tran, Anh Hoang, E. Fribourg-Blanc
{"title":"Design and fabrication of UHF RFID tag","authors":"H. Vuong, H. P. Phan, T. Nguyen-Tran, M. Dang, Nguyen Dat Son, N. Tran, Anh Hoang, E. Fribourg-Blanc","doi":"10.1109/ATC.2011.6027444","DOIUrl":"https://doi.org/10.1109/ATC.2011.6027444","url":null,"abstract":"A design procedure of a special UHF RFID tag antenna is presented in this paper. The final antenna is matched well with the ST Microelectronics XRAG2 chip at the intended resonant frequency with bandwidth of 33 MHz and has omni-directional beam patterns with gain of 1.86 dBi. A prototype has been successfully fabricated, tested by Rohde & Shwarz ZVB Vector Network Analyzer and showed good fit with the simulation results.","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":"122995702","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: 5
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