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TENCON 2007 - 2007 IEEE Region 10 Conference最新文献

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The fault probability estimation and decision reliability improvement in WSNs 无线传感器网络故障概率估计与决策可靠性改进
TENCON 2007 - 2007 IEEE Region 10 Conference Pub Date : 2007-10-01 DOI: 10.1109/TENCON.2007.4428948
Ming-Tsung Hsu, F. Lin, Yue-Shan Chang, T. Juang
{"title":"The fault probability estimation and decision reliability improvement in WSNs","authors":"Ming-Tsung Hsu, F. Lin, Yue-Shan Chang, T. Juang","doi":"10.1109/TENCON.2007.4428948","DOIUrl":"https://doi.org/10.1109/TENCON.2007.4428948","url":null,"abstract":"Faults are an essential fact in wireless sensor networking as coupled with a set of constraints. The decision making based on the reports of fragile and fallible sensor nodes might be very unreliable and, therefore, might fail to accomplish the tasks of WSNs. Previously, the reduction in the effects of faults is based on collaborative effort of a large number of sensor nodes. The collaborative work may consume valuable power and may fail as sensor nodes are severely affected by environmental interference. In this paper, instead of the neighborhood communication and pure data fusion, the collaborative effort in decision making is accomplished based on the fault probability estimation, reading variance estimation, and critical value adjustment. The fault probability of sensor nodes is computed by their reports and the t-out-of-n rule to make reliable decisions. The reading variance is estimated by well-known sample variance to assess the effects of environmental interference. The critical value adjustment is triggered as estimated reading variance changed, high fault probability, or decision quality unsatisfied to reduce the bias of fault probability.","PeriodicalId":384583,"journal":{"name":"TENCON 2007 - 2007 IEEE Region 10 Conference","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133002612","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 double-sided printed Y-shaped dipole antenna for UWB communications 用于超宽带通信的双面印刷y形偶极子天线
TENCON 2007 - 2007 IEEE Region 10 Conference Pub Date : 2007-10-01 DOI: 10.1109/TENCON.2007.4429027
Shu-Ani Yeh, Shun‐Yun Lin, Ching-Wei Guan, Homg-Ren Huang
{"title":"A double-sided printed Y-shaped dipole antenna for UWB communications","authors":"Shu-Ani Yeh, Shun‐Yun Lin, Ching-Wei Guan, Homg-Ren Huang","doi":"10.1109/TENCON.2007.4429027","DOIUrl":"https://doi.org/10.1109/TENCON.2007.4429027","url":null,"abstract":"A novel printed ultra-wideband (UWB) Y-shaped antenna is presented in this article. Unlike the conventional Y-shaped antennas, the proposed antenna had a half of stacked Y-shaped antenna dipole that was printed on each side of a microwave substrate respectively. The proposed antenna, which was fed by a 50Omega microstrip line, generates the desired ultra-wideband operation. Prototype designed for UWB operations in 3.1-10.6 GHz had been constructed and tested. The experimental results also indicate that reasonable gains through the entire operating band were observed.","PeriodicalId":384583,"journal":{"name":"TENCON 2007 - 2007 IEEE Region 10 Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133489726","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 framework for disaster management system and WSN protocol for rescue operation 灾害管理系统框架和救援行动无线传感器网络协议
TENCON 2007 - 2007 IEEE Region 10 Conference Pub Date : 2007-10-01 DOI: 10.1109/TENCON.2007.4429104
S. Saha, Mitsuji Matsumoto
{"title":"A framework for disaster management system and WSN protocol for rescue operation","authors":"S. Saha, Mitsuji Matsumoto","doi":"10.1109/TENCON.2007.4429104","DOIUrl":"https://doi.org/10.1109/TENCON.2007.4429104","url":null,"abstract":"On the way of ubiquitous computing, there are lots of research works for Wireless Sensor Networks (WSN) development. But very few works among of these huge research works specially consider disaster mitigation and rescue operation after disaster. Considering the effects of disaster, we have to develop a data collection framework for disaster mitigation and rescue operation; and a lower delay based energy efficient WSN protocol for data dissemination from disaster areas as well. In this paper, we propose a data collection framework for disaster mitigation and rescue operation. In addition, a WSN protocol for rescue operation is proposed in this paper. We simulate the performance of the protocol based on proposed framework and compare the performance of the protocol with that of SENDROM [1] system protocol, where our proposed protocol outperforms the SENDROM protocol.","PeriodicalId":384583,"journal":{"name":"TENCON 2007 - 2007 IEEE Region 10 Conference","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133296040","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: 54
Implementation and experiments on DiffServ edge router over network-processors 基于网络处理器的DiffServ边缘路由器的实现与实验
TENCON 2007 - 2007 IEEE Region 10 Conference Pub Date : 2007-10-01 DOI: 10.1109/TENCON.2007.4429071
Li-Der Chou, Zhi-Yuan Chen, Chien-Fen Liao, Po-Chia Tseng
{"title":"Implementation and experiments on DiffServ edge router over network-processors","authors":"Li-Der Chou, Zhi-Yuan Chen, Chien-Fen Liao, Po-Chia Tseng","doi":"10.1109/TENCON.2007.4429071","DOIUrl":"https://doi.org/10.1109/TENCON.2007.4429071","url":null,"abstract":"In recent years many multimedia services, such as voice over IP and videoconferencing, have been developed and applied popularly over the Internet. These multimedia services become key applications in home networks, but the bandwidth requirements for these multimedia services grow up rapidly. Thus how to provide a certain degree of Quality of Services (QoS) for the multimedia applications in edge routers is an important issue. The framework of differentiated services (DiffServ) is able to provide QoS by means of packet classifications, flow aggregation and scheduling mechanisms. In the paper a DiffServ edge router is implemented on the Intel IXP425 network processor platform. Network processors are emerging as a programmable alternative to the traditional ASIC-based solutions in scaling up the user-plane processing of network services. The performance of the implemented DiffServ edge router is evaluated by experiments. Experimental results demonstrate the validation of the implemented system.","PeriodicalId":384583,"journal":{"name":"TENCON 2007 - 2007 IEEE Region 10 Conference","volume":"116 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133318504","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
Switchable printed monopole antenna with frequency diversity for WiFi/2.6 GHz WiMAX/3.5 GHz WiMAX applications 具有频率分集的可切换印刷单极天线，适用于WiFi/2.6 GHz WiMAX/3.5 GHz WiMAX应用
TENCON 2007 - 2007 IEEE Region 10 Conference Pub Date : 2007-10-01 DOI: 10.1109/TENCON.2007.4428884
Rebecca Chou, Chun-Yih Wu, S. Yeh
{"title":"Switchable printed monopole antenna with frequency diversity for WiFi/2.6 GHz WiMAX/3.5 GHz WiMAX applications","authors":"Rebecca Chou, Chun-Yih Wu, S. Yeh","doi":"10.1109/TENCON.2007.4428884","DOIUrl":"https://doi.org/10.1109/TENCON.2007.4428884","url":null,"abstract":"A printed reconfigurable monopole antenna with frequency diversity, which is suitable for WiFi (2400-2484 MHz) and WiMAX (2500-2690/3400-3600 MHz) band is presented. A SPST (single-pole, single-throw) designed switch using a single series connected PIN (positive intrinsic-negative) diode is attached to the radiating element for frequency diversity. By controlling the states of the PIN diode, the antenna can be operated at two different frequencies. The proposed antenna in the study is described. Experimental results are also shown and discussed.","PeriodicalId":384583,"journal":{"name":"TENCON 2007 - 2007 IEEE Region 10 Conference","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132336655","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: 8
NLOS mitigation with biased Kalman filters for range estimation in UWB systems 基于偏置卡尔曼滤波的超宽带系统距离估计NLOS抑制
TENCON 2007 - 2007 IEEE Region 10 Conference Pub Date : 2007-10-01 DOI: 10.1109/TENCON.2007.4429031
C. Wann, Chih-Sheng Hsueh
{"title":"NLOS mitigation with biased Kalman filters for range estimation in UWB systems","authors":"C. Wann, Chih-Sheng Hsueh","doi":"10.1109/TENCON.2007.4429031","DOIUrl":"https://doi.org/10.1109/TENCON.2007.4429031","url":null,"abstract":"In this paper, a non-line of sight (NLOS) error identification and mitigation technique utilizing modified biased Kalman filter in ultra-wideband (UWB) systems is proposed. NLOS error is considered one of the major error sources in range estimation and wireless location systems. To improve time-based location accuracy in UWB location systems, an NLOS identification and mitigation technique is derived. Kalman filters (KFs) are used for smoothing range data and mitigating the NLOS errors. We combine the modified biased Kalman filter and a sliding window to identify and mitigate different degree of NLOS errors. The simulation results show that the change of NLOS/LOS status can be identified accordingly and the NLOS errors can be mitigated effectively by modified biased Kalman filter. The technique achieves high accuracy in range estimation for UWB positioning and tracking.","PeriodicalId":384583,"journal":{"name":"TENCON 2007 - 2007 IEEE Region 10 Conference","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132406405","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: 51
Broadside CPW coupled-line balun 舷侧CPW耦合线平衡
TENCON 2007 - 2007 IEEE Region 10 Conference Pub Date : 2007-10-01 DOI: 10.1109/TENCON.2007.4429079
Guan-Yu Chen, Jwo-Shiun Sun, Kao-Liang Wu, Cheng-Hung Lin, Chia-Hao Wu, Kwong-Kau Tiong, Y. Chen
{"title":"Broadside CPW coupled-line balun","authors":"Guan-Yu Chen, Jwo-Shiun Sun, Kao-Liang Wu, Cheng-Hung Lin, Chia-Hao Wu, Kwong-Kau Tiong, Y. Chen","doi":"10.1109/TENCON.2007.4429079","DOIUrl":"https://doi.org/10.1109/TENCON.2007.4429079","url":null,"abstract":"This paper presents a practical and simple CPW broadside coupled-line balun with multi-layers profile microstrip line and broadside coupling structure to enhance the coupled coefficient and balanced output bandwidth. Designed broadside CPW coupled-line balun design with a symmetric quarter wavelength coupled-line is developed to increase wider bandwidth efficiency and the return loss is better than the traditional planar marchaned coupled-lines balun. The structure of the designed balun is fairly simple, practical and easily fabricated. The measured results show good agreements with those analyses data.","PeriodicalId":384583,"journal":{"name":"TENCON 2007 - 2007 IEEE Region 10 Conference","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131660613","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 of band-rejected uwb slot antenna with parasitic strips 带寄生带的抗带超宽带缝隙天线设计
TENCON 2007 - 2007 IEEE Region 10 Conference Pub Date : 2007-10-01 DOI: 10.1109/TENCON.2007.4429163
Jieh‐Sen Kuo, Chih-Yu Huang
{"title":"Design of band-rejected uwb slot antenna with parasitic strips","authors":"Jieh‐Sen Kuo, Chih-Yu Huang","doi":"10.1109/TENCON.2007.4429163","DOIUrl":"https://doi.org/10.1109/TENCON.2007.4429163","url":null,"abstract":"A band-notched ultra-wideband (UWB) circular slot antenna with parasitic strips free from interference with existing wireless local area network (WLAN) systems is proposed. The antenna has an indented circular stub and arc- shaped parasitic patch embedded inside the circular slot. The desired band-notched UWB operation can be obtained by choosing the size of the arc-shaped parasitic strips cut in the circular stub. The proposed antenna has advantages of low cost, compact in size and easy design. Details of the proposed design and experimental results of the constructed antennas are presented.","PeriodicalId":384583,"journal":{"name":"TENCON 2007 - 2007 IEEE Region 10 Conference","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131754326","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 conditional isolation technique for low-energy and high-performance wide domino gates 低能量高性能宽多米诺骨牌门的条件隔离技术
TENCON 2007 - 2007 IEEE Region 10 Conference Pub Date : 2007-10-01 DOI: 10.1109/TENCON.2007.4428967
How-Rern Lin, W. Chiu, Tsung-Yi Wu
{"title":"A conditional isolation technique for low-energy and high-performance wide domino gates","authors":"How-Rern Lin, W. Chiu, Tsung-Yi Wu","doi":"10.1109/TENCON.2007.4428967","DOIUrl":"https://doi.org/10.1109/TENCON.2007.4428967","url":null,"abstract":"A new conditional isolation technique (CI-Domino) in domino logic is proposed for wide domino gates. This technique can not only reduce the subthreshold and gate oxide leakage currents simultaneously without sacrificing circuit performance, but also it can be utilized to speed up the evaluation time of domino gate. Simulations on high fan-in domino OR gates with 0.18 mum process technology show that the proposed technique achieves reduction on total static power by 36%, dynamic power by 49.14%, and delay time by 60.27% compared to the conventional domino gate. Meanwhile, the proposed technique also gains about 48.14% improvement on leakage tolerance.","PeriodicalId":384583,"journal":{"name":"TENCON 2007 - 2007 IEEE Region 10 Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124386204","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: 7
Design of an LTCC switchable filter for dual- band RF front-end applications 用于双频射频前端应用的LTCC可切换滤波器的设计
TENCON 2007 - 2007 IEEE Region 10 Conference Pub Date : 2007-10-01 DOI: 10.1109/TENCON.2007.4428826
Cheng‐Chung Chen, Shih-Ming Wang
{"title":"Design of an LTCC switchable filter for dual- band RF front-end applications","authors":"Cheng‐Chung Chen, Shih-Ming Wang","doi":"10.1109/TENCON.2007.4428826","DOIUrl":"https://doi.org/10.1109/TENCON.2007.4428826","url":null,"abstract":"This work presents a frequency switchable filter used in a highly integrated dual-band RF frond end module. The proposed filter topology employs a PIN diode as the switching device, facilitating the use of two capacitors in a semi-lumped resonator with a specified ratio of capacitances, to realize various frequency switching ratios. A dual band external Q approach is introduced to improve the input/output matching in both bands. The presented topology enables the integration of the filter in a multi-layer circuit for miniaturized implementation. Finally, an example design, fabricated using low-temperature co-fired ceramic (LTCC) technology is presented to validate the filter configuration.","PeriodicalId":384583,"journal":{"name":"TENCON 2007 - 2007 IEEE Region 10 Conference","volume":"324 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114372578","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: 13
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