Pub Date : 2009-07-09DOI: 10.1109/ISSCS.2009.5206183
V. Rantala, T. Lehtonen, P. Liljeberg, J. Plosila
The topology level fault tolerance of Network-on-Chip (NoC) can be improved with multi network interface (multi-NI) architectures. Multi-NI NoC architectures are based on connecting at least two network interfaces on each core. The aim is to improve fault tolerance on the architectural level which means the delivery of packets even when there are faulty links or routers in the network. This paper presents architectures and algorithms for multi-NI NoCs. The analysis of the proposed architectures and algorithms shows that some of them improve the fault tolerance of NoC with a reasonable overhead by decreasing the average hop counts and keeping the cores connectable even in the case of faults. With a multi-NI architecture the number of successfully delivered packets has been even doubled.
{"title":"Multi network interface architectures for fault tolerant Network-on-Chip","authors":"V. Rantala, T. Lehtonen, P. Liljeberg, J. Plosila","doi":"10.1109/ISSCS.2009.5206183","DOIUrl":"https://doi.org/10.1109/ISSCS.2009.5206183","url":null,"abstract":"The topology level fault tolerance of Network-on-Chip (NoC) can be improved with multi network interface (multi-NI) architectures. Multi-NI NoC architectures are based on connecting at least two network interfaces on each core. The aim is to improve fault tolerance on the architectural level which means the delivery of packets even when there are faulty links or routers in the network. This paper presents architectures and algorithms for multi-NI NoCs. The analysis of the proposed architectures and algorithms shows that some of them improve the fault tolerance of NoC with a reasonable overhead by decreasing the average hop counts and keeping the cores connectable even in the case of faults. With a multi-NI architecture the number of successfully delivered packets has been even doubled.","PeriodicalId":277587,"journal":{"name":"2009 International Symposium on Signals, Circuits and Systems","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125184647","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 : 2009-07-09DOI: 10.1109/ISSCS.2009.5206110
M. Andreica, N. Tapus
With the amount of available multimedia data increasing world-wide and with the expanding need for rapid access to this data, efficient data delivery has become a significant problem for which no fully satisfactory solutions have been provided, yet. A major issue is the concurrent usage of the same bottleneck network resources by multiple communication flows. In the case of multimedia streams, which consist of large volumes of data being transferred over usually long periods of time, and which require strict quality of service guarantees, this problem is even more acute. In this paper we present several decision support and optimization techniques for one of the most common types of solutions employed nowadays - advance resource reservations.
{"title":"Decision optimization techniques for efficient delivery of multimedia streams","authors":"M. Andreica, N. Tapus","doi":"10.1109/ISSCS.2009.5206110","DOIUrl":"https://doi.org/10.1109/ISSCS.2009.5206110","url":null,"abstract":"With the amount of available multimedia data increasing world-wide and with the expanding need for rapid access to this data, efficient data delivery has become a significant problem for which no fully satisfactory solutions have been provided, yet. A major issue is the concurrent usage of the same bottleneck network resources by multiple communication flows. In the case of multimedia streams, which consist of large volumes of data being transferred over usually long periods of time, and which require strict quality of service guarantees, this problem is even more acute. In this paper we present several decision support and optimization techniques for one of the most common types of solutions employed nowadays - advance resource reservations.","PeriodicalId":277587,"journal":{"name":"2009 International Symposium on Signals, Circuits and Systems","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131909088","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 : 2009-07-09DOI: 10.1109/ISSCS.2009.5206106
Tomasz Patyk, Harri Hannula, P. Kellomaki, J. Takala
This paper presents a statistical approach of finding a set of optimum compiler options to minimize the energy consumption of the compiled executable. The method employs a statistical, non-parametric analysis, namely the Mann-Whitney test, to determine a set of options to be turned on and off for a particular source code. Energy measurements show that an improvement of up to 15% over the default optimization set up of the compiler can be achieved with this methodology.
{"title":"Energy consumption reduction by automatic selection of compiler options","authors":"Tomasz Patyk, Harri Hannula, P. Kellomaki, J. Takala","doi":"10.1109/ISSCS.2009.5206106","DOIUrl":"https://doi.org/10.1109/ISSCS.2009.5206106","url":null,"abstract":"This paper presents a statistical approach of finding a set of optimum compiler options to minimize the energy consumption of the compiled executable. The method employs a statistical, non-parametric analysis, namely the Mann-Whitney test, to determine a set of options to be turned on and off for a particular source code. Energy measurements show that an improvement of up to 15% over the default optimization set up of the compiler can be achieved with this methodology.","PeriodicalId":277587,"journal":{"name":"2009 International Symposium on Signals, Circuits and Systems","volume":"229 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134251615","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 : 2009-07-09DOI: 10.1109/ISSCS.2009.5206184
Ana-Elena Carbunaru, D. Coltuc, M. Jourlin, L. Frangu
This paper proposes a new descriptor for textures, obtained by an Independent Components Analysis (ICA) applied to image wavelet subbands. In certain conditions, ICA refines the wavelet multiband analysis. The descriptor, consisting in the independent components (ICs) distribution parameters, serves as basis for the textile image signature in a recognition application. By using the Kullback-Liebler divergence to compare the signatures, the textile images from a 30 jacquards databasis, were recognized with average rates ranging from 89 to 94%, depending on the analysis number of levels.
{"title":"A texture descriptor for textile image retrieval","authors":"Ana-Elena Carbunaru, D. Coltuc, M. Jourlin, L. Frangu","doi":"10.1109/ISSCS.2009.5206184","DOIUrl":"https://doi.org/10.1109/ISSCS.2009.5206184","url":null,"abstract":"This paper proposes a new descriptor for textures, obtained by an Independent Components Analysis (ICA) applied to image wavelet subbands. In certain conditions, ICA refines the wavelet multiband analysis. The descriptor, consisting in the independent components (ICs) distribution parameters, serves as basis for the textile image signature in a recognition application. By using the Kullback-Liebler divergence to compare the signatures, the textile images from a 30 jacquards databasis, were recognized with average rates ranging from 89 to 94%, depending on the analysis number of levels.","PeriodicalId":277587,"journal":{"name":"2009 International Symposium on Signals, Circuits and Systems","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115345690","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 : 2009-07-09DOI: 10.1109/ISSCS.2009.5206085
A. Apatean, A. Rogozan, A. Bensrhair
We propose the information fusion of visible and infrared images for a pedestrian-vehicle SVM-based classification. Different types of fusion methods are presented: data fusion, feature fusion, matching score fusion and decision fusion. Data - level fusion assumes that the raw information is combined at the pixel level. The fusion at the feature level produces a feature vector integrating both visual and infrared information. Matching score fusion and decision fusion combine matching scores or decisions of individual obstacle recognition modules. Comparative results showed that fusion-based obstacle recognition techniques outperformed individual visual and infrared obstacle recognizers. An important advantage of these fusion-based systems is their possibility to adapt to the environmental illumination conditions due to a weighting parameter which also controls the system's final decision. Different feature extraction and feature selection algorithms have been investigated in order to retain the best suited features for the classification process.
{"title":"Information fusion for obstacle recognition in visible and infrared images","authors":"A. Apatean, A. Rogozan, A. Bensrhair","doi":"10.1109/ISSCS.2009.5206085","DOIUrl":"https://doi.org/10.1109/ISSCS.2009.5206085","url":null,"abstract":"We propose the information fusion of visible and infrared images for a pedestrian-vehicle SVM-based classification. Different types of fusion methods are presented: data fusion, feature fusion, matching score fusion and decision fusion. Data - level fusion assumes that the raw information is combined at the pixel level. The fusion at the feature level produces a feature vector integrating both visual and infrared information. Matching score fusion and decision fusion combine matching scores or decisions of individual obstacle recognition modules. Comparative results showed that fusion-based obstacle recognition techniques outperformed individual visual and infrared obstacle recognizers. An important advantage of these fusion-based systems is their possibility to adapt to the environmental illumination conditions due to a weighting parameter which also controls the system's final decision. Different feature extraction and feature selection algorithms have been investigated in order to retain the best suited features for the classification process.","PeriodicalId":277587,"journal":{"name":"2009 International Symposium on Signals, Circuits and Systems","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114328905","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 : 2009-07-09DOI: 10.1109/ISSCS.2009.5206207
G. Nenov, Vasia G. Stoyantcheva
Some results concerning differential relationships between transistor collector currents and the controlling currents in translinear circuits are presented. They are derived by introducing a nullor-diode model of bipolar transistor in the tranconductance matrix description of translinear circuits. Then the jacobian matrix of a circuit represents the influence of the controlling currents of the current sources onto the transistor external collector currents in a differential form. An example illustrates the approach described in the paper.
{"title":"On the sensitivity of translinear circuits","authors":"G. Nenov, Vasia G. Stoyantcheva","doi":"10.1109/ISSCS.2009.5206207","DOIUrl":"https://doi.org/10.1109/ISSCS.2009.5206207","url":null,"abstract":"Some results concerning differential relationships between transistor collector currents and the controlling currents in translinear circuits are presented. They are derived by introducing a nullor-diode model of bipolar transistor in the tranconductance matrix description of translinear circuits. Then the jacobian matrix of a circuit represents the influence of the controlling currents of the current sources onto the transistor external collector currents in a differential form. An example illustrates the approach described in the paper.","PeriodicalId":277587,"journal":{"name":"2009 International Symposium on Signals, Circuits and Systems","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117328532","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}
This paper presents an analysis of the effect of duty ratio on power loss and efficiency of the Transcutaneous Energy Transmission System (TETS) with a Class-E power amplifier. Conduction loss for each component of the TETS circuit is derived and the total efficiency of the TETS is expressed as functions of the duty ratio D . Three identical TETS at D = 0.25 , 0.5 and 0.75 are designed, constructed and tested. The experimental results match closely with the calculated ones at the power loss and total efficiency.
{"title":"Power loss and efficiency of Transcutaneous Energy Transmission System with Class-E power amplifier at any duty ratio","authors":"Tian-liang Yang, Chun-yu Zhao, Jinying Zhang, Dayue Chen","doi":"10.1109/ISSCS.2009.5206221","DOIUrl":"https://doi.org/10.1109/ISSCS.2009.5206221","url":null,"abstract":"This paper presents an analysis of the effect of duty ratio on power loss and efficiency of the Transcutaneous Energy Transmission System (TETS) with a Class-E power amplifier. Conduction loss for each component of the TETS circuit is derived and the total efficiency of the TETS is expressed as functions of the duty ratio D . Three identical TETS at D = 0.25 , 0.5 and 0.75 are designed, constructed and tested. The experimental results match closely with the calculated ones at the power loss and total efficiency.","PeriodicalId":277587,"journal":{"name":"2009 International Symposium on Signals, Circuits and Systems","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115788939","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 : 2009-07-09DOI: 10.1109/ISSCS.2009.5206212
I. Ciocoiu
Foveation enables the definition of a proper mask that will modulate the coefficients given by the Discrete Wavelet Transform of an ECG record. The mask is spatially selective and provides maximum accuracy around specific regions of interest. Subsequent denoising and coefficient quantization is further combined with a lossless compression technique in order to provide high compression ratios at low reconstruction errors. Experimental results reported on a number of MIT-BIH records show improved performances over existing solutions.
{"title":"ECG signal compression using wavelet foveation","authors":"I. Ciocoiu","doi":"10.1109/ISSCS.2009.5206212","DOIUrl":"https://doi.org/10.1109/ISSCS.2009.5206212","url":null,"abstract":"Foveation enables the definition of a proper mask that will modulate the coefficients given by the Discrete Wavelet Transform of an ECG record. The mask is spatially selective and provides maximum accuracy around specific regions of interest. Subsequent denoising and coefficient quantization is further combined with a lossless compression technique in order to provide high compression ratios at low reconstruction errors. Experimental results reported on a number of MIT-BIH records show improved performances over existing solutions.","PeriodicalId":277587,"journal":{"name":"2009 International Symposium on Signals, Circuits and Systems","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122649050","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 : 2009-07-09DOI: 10.1109/ISSCS.2009.5206219
P. Cristea, R. Tuduce
Nucleotide imbalance, nucleotide pair imbalance and 2D & 3D nucleotide paths of Nucleotide Genomic Signals (NuGSs) for several shared genes (coding) and control (non-coding) segments in the mitochondrial DNA of the hominidae family are presented in the paper. The common trend (reference) - offset representation for sets of related NuGSs is used to achieve a high resolution comparative analysis.
{"title":"Nucleotide Genomic Signal comparative analysis of homo sapiens and other hominidae mtDNA","authors":"P. Cristea, R. Tuduce","doi":"10.1109/ISSCS.2009.5206219","DOIUrl":"https://doi.org/10.1109/ISSCS.2009.5206219","url":null,"abstract":"Nucleotide imbalance, nucleotide pair imbalance and 2D & 3D nucleotide paths of Nucleotide Genomic Signals (NuGSs) for several shared genes (coding) and control (non-coding) segments in the mitochondrial DNA of the hominidae family are presented in the paper. The common trend (reference) - offset representation for sets of related NuGSs is used to achieve a high resolution comparative analysis.","PeriodicalId":277587,"journal":{"name":"2009 International Symposium on Signals, Circuits and Systems","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122893226","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 : 2009-07-09DOI: 10.1109/ISSCS.2009.5206190
A. Nedelcu, Daniel Ghita, A. Enescu, C. Anghel
This paper represents an overview of the main sphere decoders used in MIMO (Multiple Input Multiple Output) spatial multiplexing communication systems. The family of sphere decoders addressed in this paper exhibits fixed throughput, regardless of the radio channel conditions. The algorithms are compared with respect to their complexity and performances when used with a soft Viterbi channel decoder. The paper concludes with the criteria for choosing the best algorithms in a given configuration and for specific modulation scheme.
{"title":"An overview of soft-output sphere decoders with constant throughput","authors":"A. Nedelcu, Daniel Ghita, A. Enescu, C. Anghel","doi":"10.1109/ISSCS.2009.5206190","DOIUrl":"https://doi.org/10.1109/ISSCS.2009.5206190","url":null,"abstract":"This paper represents an overview of the main sphere decoders used in MIMO (Multiple Input Multiple Output) spatial multiplexing communication systems. The family of sphere decoders addressed in this paper exhibits fixed throughput, regardless of the radio channel conditions. The algorithms are compared with respect to their complexity and performances when used with a soft Viterbi channel decoder. The paper concludes with the criteria for choosing the best algorithms in a given configuration and for specific modulation scheme.","PeriodicalId":277587,"journal":{"name":"2009 International Symposium on Signals, Circuits and Systems","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125325329","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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