Tomoaki Sato, P. Moungnoul, S. Chivapreecha, Kohji Higuchi
{"title":"Performance estimates of an embedded CPU for high-speed packet processing","authors":"Tomoaki Sato, P. Moungnoul, S. Chivapreecha, Kohji Higuchi","doi":"10.1109/ECTICON.2014.6839849","DOIUrl":"https://doi.org/10.1109/ECTICON.2014.6839849","url":null,"abstract":"This paper states an embedded CPU performance required for processing packets at a continuous throughput of 1 Gbps. And the out-of-order execution of packets is proposed for processing a variety of packet frame size in the CPU performance. Despite the requirement of high-speed network connections in embedded devices and mobile devices, it is not realized that an embedded CPU capable of high-speed packet processing with low-power operations. In this paper, the authors estimate operating frequencies for processing packets at a continuous throughput of 1 Gbps using a MIPS architecture which is widely used for network devices or embedded systems today. Then, the cases that must be processed with a high-spec CPU is revealed, the solution is proposed. When the frequency of 1.0 GHz and 64-bit registers are used, the CPU usage is 11.0 %.","PeriodicalId":347166,"journal":{"name":"2014 11th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON)","volume":"83 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126193476","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}
{"title":"Performance of hybrid switching technique for optical networks","authors":"Monika Jain, Soumitra Debnath","doi":"10.1109/ECTICON.2014.6839843","DOIUrl":"https://doi.org/10.1109/ECTICON.2014.6839843","url":null,"abstract":"The optical packet switching is widely used switching technology in current optical networks for high resource utilization. However it is not suitable for larger flows or real time traffic due to random packet loss and high delay variance. On the other hand, an alternate technique, optical flow switching (OFS), is suitable for the large flows. So to transport both types of traffic effectively, a hybrid approach of switching is proposed in this paper to combine optical packet switching and optical flow switching to exploit the merits of both technologies. Performance has been evaluated in terms of Loss probability and average packet delay. Proposed hybrid technique outperforms the existing OPS in terms of network latency.","PeriodicalId":347166,"journal":{"name":"2014 11th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114941008","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}
Tharathorn Phromsa-ard, P. Sangwongngam, K. Sripimanwat, Kamol Kaemarungsri, P. Vanichchanunt, L. Wuttisittikulkij
{"title":"Low-complexity key reconciliation algorithm using LDPC bit-flipping decoding for quantum key distribution","authors":"Tharathorn Phromsa-ard, P. Sangwongngam, K. Sripimanwat, Kamol Kaemarungsri, P. Vanichchanunt, L. Wuttisittikulkij","doi":"10.1109/ECTICON.2014.6839886","DOIUrl":"https://doi.org/10.1109/ECTICON.2014.6839886","url":null,"abstract":"Quantum key reconciliation is an essential process of quantum key distribution (QKD). It aims to correct the transmission errors after the distribution of quantum objects over a quantum channel, where two legitimate parties use a classical public authenticated channel to disclose correlated bits for agreeing on their common key. This work proposes an alternative promising method employing LDPC-codes bit-flipping decoding to practical implementation of quantum key reconciliation. In our proposed scheme, the low-complexity code bit-flipping decoding based on syndrome decoding is modified and applied to conventional Winnow protocol to achieve both error correcting performance and low complexity of hardware realization, i.e. FPGA logic cells and/or memory. From numerical simulation while the performance of our proposed scheme in terms of final bit error rate (BER) and disclosed bits is superior to conventional Winnow and CASCADE protocols, it yields low complexity in LDPC decoding comparable to the existing LDPC-based reconciliation protocols. Therefore, the technique is promising to high-speed discrete-variable QKD applications.","PeriodicalId":347166,"journal":{"name":"2014 11th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON)","volume":"126 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116836398","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}
S. Lokavee, Worakot Suwansathit, Visasiri Tantrakul, T. Kerdcharoen
{"title":"Unconstrained detection of respiration rate and efficiency of sleep with pillow-based sensor array","authors":"S. Lokavee, Worakot Suwansathit, Visasiri Tantrakul, T. Kerdcharoen","doi":"10.1109/ECTICON.2014.6839779","DOIUrl":"https://doi.org/10.1109/ECTICON.2014.6839779","url":null,"abstract":"An unconstrained real-time method to detect the relationship between breathing patterns and sleep efficiency (%SE) during sleep was developed using a low-cost sleep monitoring system. This system consists of an array of force sensitive resistors (FSR) sensors embedded on a pillow-sheet, wireless network devices based on low-cost ZigBee technology to digitize and transmit the pressure data to desktop computer or display devices, software to analyze and classify body movements. The characteristic breathing patterns are explained by the change of the head pressure distribution on the pillow due to the lifting and lowing of the thorax movement. We have found that the body movement frequency is different among individuals during sleep. The aim of this paper was to evaluate the quality of breathing and sleep efficiency by using the frequency of body movement during the night that were classified using a newly developed classification algorithm based on thorax movement. Here we show that quality of sleep can be characterized and distinguished by correlations of breathing rates separated by lifting and lowing of the thorax motion. The integration of this sensor system and wireless technology with computer software could make this healthcare monitoring system a commercial product valuable for point-of-care applications.","PeriodicalId":347166,"journal":{"name":"2014 11th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129785172","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}
{"title":"Dynamic model of active power filter in three-phase four-wire system","authors":"P. Santiprapan, K. Areerak, Kongpan Areerak","doi":"10.1109/ECTICON.2014.6839776","DOIUrl":"https://doi.org/10.1109/ECTICON.2014.6839776","url":null,"abstract":"This paper describes the dynamic model of active power filter (APF) in three-phase four-wire system. The structure of the APF is the three-leg split-capacitor. The principle of the dq0 transformation and the procedure to derive the dynamic model are fully presented. The proposed model is used to explain the dynamic and steady state behaviors of APF. Moreover, the dynamic model is validated with the exact topology model. The simulation results show that the responses of the APF from the dq0 modeling approach are nearly the responses from the exact topology approach. Therefore, it confirms that the proposed model of the APF can provide a good accuracy.","PeriodicalId":347166,"journal":{"name":"2014 11th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON)","volume":"374 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124672445","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}
{"title":"Hard Disk Drive failure mode prediction based on industrial standard using decision tree learning","authors":"Thanadon Suchatpong, K. Bhumkittipich","doi":"10.1109/ECTICON.2014.6839839","DOIUrl":"https://doi.org/10.1109/ECTICON.2014.6839839","url":null,"abstract":"Quality and reliability are extremely important for Hard Disk Drive (HDD) manufactory, which increasing upon the expansion capacity of HDD. The production process contains many tests in order to evaluate quality and efficiency which resulting high amount of complex data. Some HDDs will be randomly selected from each lot to test with various environments simulation. Due to complexity of tests and higher capacity of HDD manufacturer according to increasing demand from the consumer, for process test, it might take a long time. However, some failing HDD might be found at the customers test process or end users. This paper introduced the failure prediction using decision tree learning and the procedure of data collection and preparation. The main purpose of the study is to eliminate the simulation of the various environments in the tests which reducing time and increasing speed and efficiency of the overall analysis process prior to deliver the products to the customers. Moreover, Corrective Action: CA, the action that will solve and prevent the cause of the failure, can be verified faster. This study can improve quality and reliability of the production.","PeriodicalId":347166,"journal":{"name":"2014 11th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129489608","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}
{"title":"Improvement of cellular network performance with multiple antenna elements","authors":"P. Chaipanya, M. Uthansakul","doi":"10.1109/ECTICON.2014.6839758","DOIUrl":"https://doi.org/10.1109/ECTICON.2014.6839758","url":null,"abstract":"This paper proposes a vertical beamforming scheme for fractional frequency reuse to reduce the effect of inter-cell interference in cellular networks. The proposed concept is validated through computer simulation in terms of SINR. SINR of the system when utilizing horizontal and vertical beamforming is compared to confirm that vertical beamforming provides higher SINR to the system. In this paper, vertical beamforming technique using antenna which is currently employed at cellular BS is considered. Vertical beamforming for FFR technique with different frequency allocation schemes are revealed. The obtained result shows that the FFR cooperating with cell sectorization provides maximum performance.","PeriodicalId":347166,"journal":{"name":"2014 11th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON)","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121171910","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}
{"title":"Enhancement of lag time query on hydrologic data using clipping technique and logic-based correlation","authors":"Wachara Fungwacharakorn, W. Pattara-Atikom","doi":"10.1109/ECTICON.2014.6839813","DOIUrl":"https://doi.org/10.1109/ECTICON.2014.6839813","url":null,"abstract":"Lag time is a fundamental property on hydrology. However, lag time query may take large amount of space and time. In this paper, we explore clipping, a simple discretization technique, to resolve space and time complexity and enhance the accuracy of lag time query on clustering. The result shows that the hydrologic data are satisfied with clipping and hence they could be classified using clipping technique and logic-based correlation with less space and time.","PeriodicalId":347166,"journal":{"name":"2014 11th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON)","volume":"66 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121528223","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}
{"title":"Only-Spatial beamforming for wideband communications","authors":"C. Bunsanit","doi":"10.1109/ECTICON.2014.6839784","DOIUrl":"https://doi.org/10.1109/ECTICON.2014.6839784","url":null,"abstract":"This article presents beamforming algorithm of wideband smart antenna using Only Spatial Signal Processing in which its operation relies on the use of two-dimensional Inverse Discrete Fourier Transformer (IDFT) technique. The required weights at individual antenna elements are represented by real number which in practice can be realized by amplifiers or attenuators. Then we designed and constructed a full prototype of a smart antenna systems for wideband wireless communication in order to validate this algorithm. After that, the results of radiation pattern are compared between simulation and measurement.","PeriodicalId":347166,"journal":{"name":"2014 11th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON)","volume":"29 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124355408","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}
{"title":"1-V low-power high-accuracy CMOS potentiostat circuit for amperometric sensor","authors":"Rungtrakool Trakoolwattana, A. Thanachayanont","doi":"10.1109/ECTICON.2014.6839787","DOIUrl":"https://doi.org/10.1109/ECTICON.2014.6839787","url":null,"abstract":"This paper describes the design of a low-power low-voltage potentiostat circuit in a 0.18-μm CMOS technology. Current-based technique is used and high accuracy is achieved by using a wide swing current mirror with negative feedback loops. Low power dissipation was achieved by cleverly sharing operational amplifiers for two negative feedback loops simultaneously, thus the number of operational amplifiers is reduced to two. Bulk-driven input technique is used to allow operational amplifier to operate with low power dissipation and low power supply voltage. Simulation results showed that the circuit exhibits the maximum error of 0.05% and an output linear regression of R2=0.99996, while operating under a single 1-V power supply voltage. The maximum power dissipation is 12.3 μW with the maximum sensor current of 6 μA.","PeriodicalId":347166,"journal":{"name":"2014 11th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON)","volume":"102 4 Pt 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121939792","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}