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2013 13th International Symposium on Communications and Information Technologies (ISCIT)最新文献

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An oscillator based ANF with adaptable notch-bandwidth for singletone detection 一种基于自适应陷波带宽的ANF振荡器用于单信号检测
2013 13th International Symposium on Communications and Information Technologies (ISCIT) Pub Date : 2013-10-24 DOI: 10.1109/ISCIT.2013.6645885
Ho-En Liao
{"title":"An oscillator based ANF with adaptable notch-bandwidth for singletone detection","authors":"Ho-En Liao","doi":"10.1109/ISCIT.2013.6645885","DOIUrl":"https://doi.org/10.1109/ISCIT.2013.6645885","url":null,"abstract":"ANF (Adaptive Notch Filer) has been shown to be very efficient for real-time singletone detection. There are still works worthy of studying to further improve its performance, specifically, convergence rate and mse (mean-square-error) in frequency estimation. In this paper, an ANF basing on digital oscillator model is proposed, which is capable of adapting not only the notch frequency as usual but also the notch-bandwidth of a NF (Notch Filter). This makes the proposed ANF be able to trapping a singletone with faster convergence rate as well as better estimation mse.","PeriodicalId":356009,"journal":{"name":"2013 13th International Symposium on Communications and Information Technologies (ISCIT)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115489146","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
Novel management model to increase visual effect productivity 新颖的管理模式，提高视觉效果生产效率
2013 13th International Symposium on Communications and Information Technologies (ISCIT) Pub Date : 2013-10-24 DOI: 10.1109/ISCIT.2013.6645954
Metharat Yothino, Worasak Rueangsirasak, R. Chaisricharoen
{"title":"Novel management model to increase visual effect productivity","authors":"Metharat Yothino, Worasak Rueangsirasak, R. Chaisricharoen","doi":"10.1109/ISCIT.2013.6645954","DOIUrl":"https://doi.org/10.1109/ISCIT.2013.6645954","url":null,"abstract":"A visual effect production in the film or the motion picture is produced various knowledge from the experts in production team such as anatomy, drawing, programming, etc. This production process has a complex procedure to maximize the overall effect. This is a cause of delay output about release date, when they lack good planning of production. In this paper, an adaptive scrum framework is proposed to plan visual effects production. The proposed framework was evaluated by the experts working in a different position of visual effects. The results are considered as a good score with more than 90% in the quality plan and scope management. Therefore, this proposed framework should be applied as a novel management model to increase visual effects production.","PeriodicalId":356009,"journal":{"name":"2013 13th International Symposium on Communications and Information Technologies (ISCIT)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116169625","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
Signal integrity factors in high speed multi-board test setup 信号完整性因素在高速多板测试设置
2013 13th International Symposium on Communications and Information Technologies (ISCIT) Pub Date : 2013-10-24 DOI: 10.1109/ISCIT.2013.6645864
Sandeep Dattaprasad, Kyaw Swa Maung, K. Lew, Y. F. Lai, M. Y. Chong, M. K. Dey
{"title":"Signal integrity factors in high speed multi-board test setup","authors":"Sandeep Dattaprasad, Kyaw Swa Maung, K. Lew, Y. F. Lai, M. Y. Chong, M. K. Dey","doi":"10.1109/ISCIT.2013.6645864","DOIUrl":"https://doi.org/10.1109/ISCIT.2013.6645864","url":null,"abstract":"There has been rapid improvement in mixed signal System on Chip (SoC) designs used in storage technologies with high-speed interfaces such as SATA 6G (Serial Advanced Technology Attachment), SAS 6G (Serial Attached Small Computer System Interface), USB 3 (Universal Serial Bus), and memory devices such as DDR2/3 (Double Data Rate). The design of such products is trending towards reduction in size of Printed Circuit Board Assemblies (PCBA) used. Development of such high speed PCBAs for storage products requires performing functional and other parametric tests for which special test platforms are needed. Such test platforms are often multi-board systems with each board in the system having highly complex devices that are sensitive to various signal integrity factors. This paper presents few of the important factors that are to be considered while designing such systems.","PeriodicalId":356009,"journal":{"name":"2013 13th International Symposium on Communications and Information Technologies (ISCIT)","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127530162","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
Smart street light system looking like usual street lights based on sensor networks 智能路灯系统看起来像基于传感器网络的普通路灯
2013 13th International Symposium on Communications and Information Technologies (ISCIT) Pub Date : 2013-10-24 DOI: 10.1109/ISCIT.2013.6645937
N. Yoshiura, Y. Fujii, N. Ohta
{"title":"Smart street light system looking like usual street lights based on sensor networks","authors":"N. Yoshiura, Y. Fujii, N. Ohta","doi":"10.1109/ISCIT.2013.6645937","DOIUrl":"https://doi.org/10.1109/ISCIT.2013.6645937","url":null,"abstract":"Currently, in the whole world, enormous electric energy is consumed by the street lights, which are automatically turn on when it becomes dark and automatically turn off when it becomes bright. This is the huge waste of energy in the whole world and should be changed. This paper discusses a smart street light system, whose concept is proposed by Fujii et al. The main aim of smart street light systems is that lights turn on when needed and light turn off when not needed. Moreover, the smart street light system in this paper behaves like usual street lights that turn on all night. The ideal behavior of the smart street light system is that no one finds turn-off of street lights at night. Whenever someone see street lights, they turn on and whenever no one see street lights, they turn off. The smart street light system consists of LED lights, brightness sensors, motion sensors and short-distance communication networks. The lights turn on before pedestrians and vehicles come and turn off or reduce brightness when there is no one. It will be difficult for pedestrians and drivers of vehicles to distinguish our smart street lights and the conventional street lights because our street lights all turn on before they come.","PeriodicalId":356009,"journal":{"name":"2013 13th International Symposium on Communications and Information Technologies (ISCIT)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126795279","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: 52
MIMO-OFDM receiver using a modified ESPAR antenna with periodically changed directivity MIMO-OFDM接收机采用改进的ESPAR天线，指向性周期性变化
2013 13th International Symposium on Communications and Information Technologies (ISCIT) Pub Date : 2013-10-24 DOI: 10.1109/ISCIT.2013.6645841
Diego Javier Reinoso Chisaguano, M. Okada
{"title":"MIMO-OFDM receiver using a modified ESPAR antenna with periodically changed directivity","authors":"Diego Javier Reinoso Chisaguano, M. Okada","doi":"10.1109/ISCIT.2013.6645841","DOIUrl":"https://doi.org/10.1109/ISCIT.2013.6645841","url":null,"abstract":"This paper proposes a MIMO-OFDM receiver with a modified Electronically Steerable Passive Array Radiator (ESPAR) antenna. MIMO-OFDM receiver with ESPAR antenna can improve the bit error rate performance and obtains additional diversity gain without increasing the number of Radio Frequency (RF) front-end circuits. However, the conventional ESPAR-antenna assisted MIMO-OFDM receiver only considers a simplified model of the received signal of the ESPAR antenna. The proposed MIMO-OFDM receiver with a modified ESPAR antenna makes efficient use of positive and negative frequency shifted components of the received signal generated by ESPAR antenna with periodically changed directivity. The simulation results show that the proposed scheme can further improve the bit error rate performance of the system.","PeriodicalId":356009,"journal":{"name":"2013 13th International Symposium on Communications and Information Technologies (ISCIT)","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127581986","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
Voltage differencing gain amplifier (VDGA) and its application 差分增益放大器(VDGA)及其应用
2013 13th International Symposium on Communications and Information Technologies (ISCIT) Pub Date : 2013-10-24 DOI: 10.1109/ISCIT.2013.6645869
J. Satansup, W. Tangsrirat
{"title":"Voltage differencing gain amplifier (VDGA) and its application","authors":"J. Satansup, W. Tangsrirat","doi":"10.1109/ISCIT.2013.6645869","DOIUrl":"https://doi.org/10.1109/ISCIT.2013.6645869","url":null,"abstract":"A circuit realization of the voltage differencing gain amplifier (VDGA) using only tunable transconductance cells is described in this paper. The newly defined element is conceptually a combination of the voltage differencing unit and the current-controlled voltage amplifier. The advantage feature of the proposed element is that the important transfer characteristics are electronically tunable by means of external bias currents. As application example, the resistorless realization of voltage-mode biquad filter based on the proposed VDGA is also introduced. PSPICE simulation results are given to confirm the theoretical analysis.","PeriodicalId":356009,"journal":{"name":"2013 13th International Symposium on Communications and Information Technologies (ISCIT)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124106119","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
QR code watermarking algorithm based on wavelet transform 基于小波变换的二维码水印算法
2013 13th International Symposium on Communications and Information Technologies (ISCIT) Pub Date : 2013-10-24 DOI: 10.1109/ISCIT.2013.6645969
J. Panyavaraporn, Paramate Horkaew, W. Wongtrairat
{"title":"QR code watermarking algorithm based on wavelet transform","authors":"J. Panyavaraporn, Paramate Horkaew, W. Wongtrairat","doi":"10.1109/ISCIT.2013.6645969","DOIUrl":"https://doi.org/10.1109/ISCIT.2013.6645969","url":null,"abstract":"Copyright protection and authentication have become increasingly more important in daily life. The digital watermark is one of the techniques invented to tackle this issue. In this paper, a digitally invisible watermark is embedded in a QR code image by means of wavelet transform. In the embedding process, a binary image, logo, is transformed into a corresponding watermark and then embeded into a selected subband. The experimental results illustrated that, for all the cases considered in this paper is more robustness to attacks and as such it can serve as a viable copyright protection and authentication tool.","PeriodicalId":356009,"journal":{"name":"2013 13th International Symposium on Communications and Information Technologies (ISCIT)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125544085","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: 19
Interference mitigation by jointly splitting rates and beamforming for multi-cell multi-user networks 多小区多用户网络中联合分频和波束形成的干扰抑制
2013 13th International Symposium on Communications and Information Technologies (ISCIT) Pub Date : 2013-10-24 DOI: 10.1109/ISCIT.2013.6645819
E. Che, H. Tuan
{"title":"Interference mitigation by jointly splitting rates and beamforming for multi-cell multi-user networks","authors":"E. Che, H. Tuan","doi":"10.1109/ISCIT.2013.6645819","DOIUrl":"https://doi.org/10.1109/ISCIT.2013.6645819","url":null,"abstract":"The paper considers the joint design for splitting bit rates in private and common message transmissions and coordinated beamforming in a multi-cell multi-user multiple input single output (MISO) system. Namely, the users are purposely paired to decode the common messages to subtract interferences. Both the private messages and common messages are further beamformed before the transmission to maximize the worst user's rate performance of the overall system. The common messages and private messages are decoded in sequence. Obviously, users pairing optimization alone already is a nontrivial combinatorics, while beamforming private and common messages also pose a difficult nonconvex optimization problem. Their jointly optimal design is thus a hard mixed combinatoric optimization problem. Nevertheless, we show that this joint design can be successfully addressed by means of d.c (difference of convex functions) optimization. Numerical simulation shows the advantage of our approach over the previous one.","PeriodicalId":356009,"journal":{"name":"2013 13th International Symposium on Communications and Information Technologies (ISCIT)","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128905675","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
RFID 2D-localization improvement using modified LANDMARC with linear MMSE estimation 基于线性MMSE估计的改进LANDMARC改进RFID二维定位
2013 13th International Symposium on Communications and Information Technologies (ISCIT) Pub Date : 2013-10-24 DOI: 10.1109/ISCIT.2013.6645837
T. Sansanayuth, Prapun Suksompong, Chalie Chareonlarpnopparut, A. Taparugssanagorn
{"title":"RFID 2D-localization improvement using modified LANDMARC with linear MMSE estimation","authors":"T. Sansanayuth, Prapun Suksompong, Chalie Chareonlarpnopparut, A. Taparugssanagorn","doi":"10.1109/ISCIT.2013.6645837","DOIUrl":"https://doi.org/10.1109/ISCIT.2013.6645837","url":null,"abstract":"RFID localization uses Radio Frequency Identification (RFID) technology to determine object's position in a specific area. Location identification based on Dynamic Active RFID Calibration (LANDMARC) is a notable technique in which active tags and signal strengths are utilized. In this paper, Linear Minimum Mean Square Error (LMMSE) estimation is employed to improve the accuracy of LANDMARC. The type of tags is also changed to passive one which smaller and cheaper than active tags. The simulation and experimental results show significant improvement over the conventional LANDMARC approach.","PeriodicalId":356009,"journal":{"name":"2013 13th International Symposium on Communications and Information Technologies (ISCIT)","volume":"292 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116309037","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
Degradation in electrical properties of Si-PIN Power diodes after treatment by electron irradiation 电子辐照处理后Si-PIN功率二极管电性能的退化
2013 13th International Symposium on Communications and Information Technologies (ISCIT) Pub Date : 2013-10-24 DOI: 10.1109/ISCIT.2013.6645876
W. Itthikusumarn, J. Prabket, A. Poyai
{"title":"Degradation in electrical properties of Si-PIN Power diodes after treatment by electron irradiation","authors":"W. Itthikusumarn, J. Prabket, A. Poyai","doi":"10.1109/ISCIT.2013.6645876","DOIUrl":"https://doi.org/10.1109/ISCIT.2013.6645876","url":null,"abstract":"Power diodes development concentrate on fast switching, high reverse voltage blocking and low power consumption. One way to improve switching property is reducing minority carrier lifetime by electron irradiation. This paper presented degradation of silicon PN junction which cause from lifetime modification by electron irradiation. Silicon PIN power diodes were irradiated electron ray at different dose, 50, 100 and 150 KGy respectively, to compare with no treatment diodes. The result show that electron irradiation can reduce lifetime extremely but saturation current which effect to reverse leakage current will increase more than two orders when diodes were irradiated. JA-WD method shows that increasing in generation current via center traps of defects from irradiation is major reason of degradation in reverse leakage current and other electrical characteristics.","PeriodicalId":356009,"journal":{"name":"2013 13th International Symposium on Communications and Information Technologies (ISCIT)","volume":"28 43","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132275563","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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