Pub Date : 2015-03-26DOI: 10.1109/ICCE.2015.7066356
I. Joo, C. Shin, Sanguk Lee, Jaehoon Kim
In this paper, we propose a novel L5 tracking scheme for QZSS satellite using L1/L5 synchronization characteristics in the L1/L5 receiver. The QZSS consists of a multiple number of satellites that fly in the orbit passing through the near zenith over Japan. The Michibiki, the first QZSS satellite, is transmitting all the positioning signals including the L1/L5 signals. As the code length of L5 signal is 10- times that of L1 signal, the L5 acquisition process takes too much time. To reduce this acquisition processing time, a higher number of correlators should be used in the acquisition module. These makes the hardware complexity and the computation power increase. As the proposed scheme uses the L1 tracking results such as the PRN, bit synchronization, and Doppler frequency, it doesn't need the extra L5 acquisition module and provides fast and stable tracking of L5 signal. The feasibility of the proposed scheme is demonstrated by processing L1/L5 signal transmitted from the QZSS satellite.
{"title":"A novel L5 tracking scheme for QZSS satellite using L1/L5 synchronization characteristics","authors":"I. Joo, C. Shin, Sanguk Lee, Jaehoon Kim","doi":"10.1109/ICCE.2015.7066356","DOIUrl":"https://doi.org/10.1109/ICCE.2015.7066356","url":null,"abstract":"In this paper, we propose a novel L5 tracking scheme for QZSS satellite using L1/L5 synchronization characteristics in the L1/L5 receiver. The QZSS consists of a multiple number of satellites that fly in the orbit passing through the near zenith over Japan. The Michibiki, the first QZSS satellite, is transmitting all the positioning signals including the L1/L5 signals. As the code length of L5 signal is 10- times that of L1 signal, the L5 acquisition process takes too much time. To reduce this acquisition processing time, a higher number of correlators should be used in the acquisition module. These makes the hardware complexity and the computation power increase. As the proposed scheme uses the L1 tracking results such as the PRN, bit synchronization, and Doppler frequency, it doesn't need the extra L5 acquisition module and provides fast and stable tracking of L5 signal. The feasibility of the proposed scheme is demonstrated by processing L1/L5 signal transmitted from the QZSS satellite.","PeriodicalId":169402,"journal":{"name":"2015 IEEE International Conference on Consumer Electronics (ICCE)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126445803","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}
Pub Date : 2015-03-26DOI: 10.1109/ICCE.2015.7066500
Y. Yoo, Il-Woo Lee
The energy savings analysis method has been attempted in various ways. But the result can be derived in a great variety way according to the analysis method. Therefore, we conduct a more accurate analysis through the data validation in this paper by comparing the relative energy savings rate between the experimental group and the control group, and we discuss the specific satisfaction in terms of the user if energy savings has been conducted.
{"title":"Experimental energy analysis of power consumption and consumers preferences through data validation","authors":"Y. Yoo, Il-Woo Lee","doi":"10.1109/ICCE.2015.7066500","DOIUrl":"https://doi.org/10.1109/ICCE.2015.7066500","url":null,"abstract":"The energy savings analysis method has been attempted in various ways. But the result can be derived in a great variety way according to the analysis method. Therefore, we conduct a more accurate analysis through the data validation in this paper by comparing the relative energy savings rate between the experimental group and the control group, and we discuss the specific satisfaction in terms of the user if energy savings has been conducted.","PeriodicalId":169402,"journal":{"name":"2015 IEEE International Conference on Consumer Electronics (ICCE)","volume":"515 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116209663","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}
Pub Date : 2015-03-26DOI: 10.1109/ICCE.2015.7066333
Meng Li, P. Zhang, Chuang Zhu, Huizhu Jia, Xiaodong Xie, J. Cong, Wen Gao
Image scaling is a fundamental algorithm used in a large range of digital image applications. In this paper, we propose an efficient VLSI architecture for a novel edge-directed linear interpolation algorithm. Our VLSI design is implemented using high level synthesis (HLS) tool, which generates RTL modules from C/C++ functions. HLS provides significantly improved design productivity compared to the traditional RTL-based design flow. So we explored a large design space including several fine-grained and coarse-grained optimizations in the pipeline architecture design. Our architecture is verified in a working system based on Xilinx Kintex-7 FPGA. Experiments show that our design can process UHD (3840*2160) videos at 30fps with moderate resource utilization.
{"title":"High efficiency VLSI implementation of an edge-directed video up-scaler using high level synthesis","authors":"Meng Li, P. Zhang, Chuang Zhu, Huizhu Jia, Xiaodong Xie, J. Cong, Wen Gao","doi":"10.1109/ICCE.2015.7066333","DOIUrl":"https://doi.org/10.1109/ICCE.2015.7066333","url":null,"abstract":"Image scaling is a fundamental algorithm used in a large range of digital image applications. In this paper, we propose an efficient VLSI architecture for a novel edge-directed linear interpolation algorithm. Our VLSI design is implemented using high level synthesis (HLS) tool, which generates RTL modules from C/C++ functions. HLS provides significantly improved design productivity compared to the traditional RTL-based design flow. So we explored a large design space including several fine-grained and coarse-grained optimizations in the pipeline architecture design. Our architecture is verified in a working system based on Xilinx Kintex-7 FPGA. Experiments show that our design can process UHD (3840*2160) videos at 30fps with moderate resource utilization.","PeriodicalId":169402,"journal":{"name":"2015 IEEE International Conference on Consumer Electronics (ICCE)","volume":"64 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115249341","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}
Pub Date : 2015-03-26DOI: 10.1109/ICCE.2015.7066522
R. Kays
Visible light communication (VLC) is an attractive alternative to radio frequency communication for applications requiring a wireless short range link. A lot of research work has been done on this topic. Different concepts for VLC are specified in standard IEEE 802.15.7. An interesting feature is the application of existing infrastructures like LED lighting to carry data transmission on top. In this paper, we describe a new approach which applies a video display as transmitter and a digital camera as receiver. Due to a multi-parallel transmission based on individual modulation of all pixels of the screen, high data rates can be achieved. A special feature is the option to design the modulation such that data transfer runs on top of a video presentation without annoying the viewer.
{"title":"Visible light communication using TV displays and video cameras","authors":"R. Kays","doi":"10.1109/ICCE.2015.7066522","DOIUrl":"https://doi.org/10.1109/ICCE.2015.7066522","url":null,"abstract":"Visible light communication (VLC) is an attractive alternative to radio frequency communication for applications requiring a wireless short range link. A lot of research work has been done on this topic. Different concepts for VLC are specified in standard IEEE 802.15.7. An interesting feature is the application of existing infrastructures like LED lighting to carry data transmission on top. In this paper, we describe a new approach which applies a video display as transmitter and a digital camera as receiver. Due to a multi-parallel transmission based on individual modulation of all pixels of the screen, high data rates can be achieved. A special feature is the option to design the modulation such that data transfer runs on top of a video presentation without annoying the viewer.","PeriodicalId":169402,"journal":{"name":"2015 IEEE International Conference on Consumer Electronics (ICCE)","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116769194","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}
Pub Date : 2015-03-26DOI: 10.1109/ICCE.2015.7066509
Jun-Hyun Lee, Changyoung An, Bong-Jun Kim, H. Ryu
Chaos communication system is possible to improve the system security by using chaos signal. Further, it is possible to reduce the possibility of eavesdropping, and has strong characteristics from interference signal and jamming signal. However, BER performance of chaos system is worse than digital communication system. By this reason, researches for BER performance improvement are being studied actively. In previous studies, we proposed a novel chaos map for BER performance improvement, and called it `Boss map'. Also, we proposed a novel chaos transceiver for BER performance improvement. However, BER performance is evaluated differently according to delay time of chaos transceiver. Therefore, for effective using of Boss map, we should find the optimal delay time in CDSK system and proposed chaos transceiver. In this paper, when Boss map is used, we evaluate BER performance of CDSK system and proposed chaos transceiver according to delay time. Also, we find a delay time that is possible to have best BER performance in CDSK system and novel chaos transceiver after evaluation of BER performance according to delay time.
{"title":"Analysis of boss map according to delay time in CDSK system and proposed chaos system","authors":"Jun-Hyun Lee, Changyoung An, Bong-Jun Kim, H. Ryu","doi":"10.1109/ICCE.2015.7066509","DOIUrl":"https://doi.org/10.1109/ICCE.2015.7066509","url":null,"abstract":"Chaos communication system is possible to improve the system security by using chaos signal. Further, it is possible to reduce the possibility of eavesdropping, and has strong characteristics from interference signal and jamming signal. However, BER performance of chaos system is worse than digital communication system. By this reason, researches for BER performance improvement are being studied actively. In previous studies, we proposed a novel chaos map for BER performance improvement, and called it `Boss map'. Also, we proposed a novel chaos transceiver for BER performance improvement. However, BER performance is evaluated differently according to delay time of chaos transceiver. Therefore, for effective using of Boss map, we should find the optimal delay time in CDSK system and proposed chaos transceiver. In this paper, when Boss map is used, we evaluate BER performance of CDSK system and proposed chaos transceiver according to delay time. Also, we find a delay time that is possible to have best BER performance in CDSK system and novel chaos transceiver after evaluation of BER performance according to delay time.","PeriodicalId":169402,"journal":{"name":"2015 IEEE International Conference on Consumer Electronics (ICCE)","volume":"311 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133693631","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}
Pub Date : 2015-03-26DOI: 10.1109/ICCE.2015.7066374
Zhen Zhang, S. Yin, Leibo Liu, Shaojun Wei
In this paper we propose an algorithm for real-time 2D-to-3D conversion. Saliency based on color histogram is used to build depth map. To eliminate instability problem of color saliency, we presented a low-complexity and low-latency scene detection method taking advantage of color histogram produced before. The experiment results show that our algorithm is able to eliminate depth flickering effectively and create depth maps of good equality in various scenes in real-time.
{"title":"Real-time time-consistent 2D-to-3D video conversion based on color histogram","authors":"Zhen Zhang, S. Yin, Leibo Liu, Shaojun Wei","doi":"10.1109/ICCE.2015.7066374","DOIUrl":"https://doi.org/10.1109/ICCE.2015.7066374","url":null,"abstract":"In this paper we propose an algorithm for real-time 2D-to-3D conversion. Saliency based on color histogram is used to build depth map. To eliminate instability problem of color saliency, we presented a low-complexity and low-latency scene detection method taking advantage of color histogram produced before. The experiment results show that our algorithm is able to eliminate depth flickering effectively and create depth maps of good equality in various scenes in real-time.","PeriodicalId":169402,"journal":{"name":"2015 IEEE International Conference on Consumer Electronics (ICCE)","volume":"79 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131656149","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}
Pub Date : 2015-03-26DOI: 10.1109/ICCE.2015.7066414
Y. Ren, Young Woo Kim, Hag-Young Kim
PCI Express is considered as a good candidate for system interconnects due to its fast speed, low power consumption, and good protocol efficiency. In this paper we propose a system interconnection device based on PCI Express for usage in small-scale system interconnect and describe its design, implementation, and early evaluation. The proposed device provides multiple 20 Gbps connections and current testing results show that the throughput reaches maximally 6.797 Gbps without DMA.
{"title":"Implementation of system interconnection devices using PCI express","authors":"Y. Ren, Young Woo Kim, Hag-Young Kim","doi":"10.1109/ICCE.2015.7066414","DOIUrl":"https://doi.org/10.1109/ICCE.2015.7066414","url":null,"abstract":"PCI Express is considered as a good candidate for system interconnects due to its fast speed, low power consumption, and good protocol efficiency. In this paper we propose a system interconnection device based on PCI Express for usage in small-scale system interconnect and describe its design, implementation, and early evaluation. The proposed device provides multiple 20 Gbps connections and current testing results show that the throughput reaches maximally 6.797 Gbps without DMA.","PeriodicalId":169402,"journal":{"name":"2015 IEEE International Conference on Consumer Electronics (ICCE)","volume":"73 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131880063","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}
Pub Date : 2015-03-26DOI: 10.1109/ICCE.2015.7066341
Seongkyu Mun, Suwon Shon, Wooil Kim, Hanseok Ko
This paper proposes a robust speaker direction estimation method based on a microphone array for voice based interaction with smart TV. The proposed method uses speech basis and associated weights of non-negative matrix factorization for finding the speaker independent utterance direction from input signal with noise. The experimental results of the speaker direction estimation in real acoustic environment validate the effectiveness of the proposed algorithm in terms of representative performance measures compared to the conventional methods.
{"title":"Robust speaker direction estimation with microphone array using NMF for smart TV interaction","authors":"Seongkyu Mun, Suwon Shon, Wooil Kim, Hanseok Ko","doi":"10.1109/ICCE.2015.7066341","DOIUrl":"https://doi.org/10.1109/ICCE.2015.7066341","url":null,"abstract":"This paper proposes a robust speaker direction estimation method based on a microphone array for voice based interaction with smart TV. The proposed method uses speech basis and associated weights of non-negative matrix factorization for finding the speaker independent utterance direction from input signal with noise. The experimental results of the speaker direction estimation in real acoustic environment validate the effectiveness of the proposed algorithm in terms of representative performance measures compared to the conventional methods.","PeriodicalId":169402,"journal":{"name":"2015 IEEE International Conference on Consumer Electronics (ICCE)","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133940451","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}
Pub Date : 2015-03-26DOI: 10.1109/ICCE.2015.7066534
Se Jun Han, Donghyun Kang, Y. Eom
The I/O caused by background applications shorten the lifespan of mobile devices because they affect the behavior of power intensive hardware. Our efficient power management scheme addresses this problem by killing unnecessary applications. Our results show LPK extends the lifespan up to 9.4% compared to baseline on a real device.
{"title":"Low Power Killer: Extending the battery lifespan by reducing I/O on mobile devices","authors":"Se Jun Han, Donghyun Kang, Y. Eom","doi":"10.1109/ICCE.2015.7066534","DOIUrl":"https://doi.org/10.1109/ICCE.2015.7066534","url":null,"abstract":"The I/O caused by background applications shorten the lifespan of mobile devices because they affect the behavior of power intensive hardware. Our efficient power management scheme addresses this problem by killing unnecessary applications. Our results show LPK extends the lifespan up to 9.4% compared to baseline on a real device.","PeriodicalId":169402,"journal":{"name":"2015 IEEE International Conference on Consumer Electronics (ICCE)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133192590","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}
Pub Date : 2015-03-26DOI: 10.1109/ICCE.2015.7066516
Jaekeun Lee, Sunghoi Park, Tacklim Lee, Jinsung Byun, Sehyun Park
This paper proposes a novel energy management system using an energy management smart band (EMSB) and an intelligent smart plug (ISP). The proposed system cuts off standby power and controls temperature of an air conditioner considering users. Total power consumption was reduced by up to 12.5% using the proposed system.
{"title":"Design and implementation of wristband-based smart energy management system","authors":"Jaekeun Lee, Sunghoi Park, Tacklim Lee, Jinsung Byun, Sehyun Park","doi":"10.1109/ICCE.2015.7066516","DOIUrl":"https://doi.org/10.1109/ICCE.2015.7066516","url":null,"abstract":"This paper proposes a novel energy management system using an energy management smart band (EMSB) and an intelligent smart plug (ISP). The proposed system cuts off standby power and controls temperature of an air conditioner considering users. Total power consumption was reduced by up to 12.5% using the proposed system.","PeriodicalId":169402,"journal":{"name":"2015 IEEE International Conference on Consumer Electronics (ICCE)","volume":"94 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117289758","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}
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