Pub Date : 2016-07-20DOI: 10.1109/CSNDSP.2016.7573908
S. Hanczewski, A. Kaliszan
In this paper, the authors presents a simulator of multiservice queueing systems of their own design. The simulator is a module of a more elaborate program designed to investigate queueing systems and is specifically designed for verification of existing and newly developed algorithms for modelling systems of this type. The paper identifies key capabilities of the simulator with an example of a queueing system with the cFIFO (continuos first in first out) priority queue discipline. The simulator makes it possible to service a number of call streams, known from the literature of the subject, such as Poisson, Bernoulli and Pascal streams (BPP) as well as other streams, including those in which traffic parameters have been obtained empirically. The simulator presented in the paper allows researcher to obtain all parameters of queueing systems under scrutiny, while its modulelike structure makes its development to include new disciplines in queue service possible.
{"title":"Simulation studies of queueing systems","authors":"S. Hanczewski, A. Kaliszan","doi":"10.1109/CSNDSP.2016.7573908","DOIUrl":"https://doi.org/10.1109/CSNDSP.2016.7573908","url":null,"abstract":"In this paper, the authors presents a simulator of multiservice queueing systems of their own design. The simulator is a module of a more elaborate program designed to investigate queueing systems and is specifically designed for verification of existing and newly developed algorithms for modelling systems of this type. The paper identifies key capabilities of the simulator with an example of a queueing system with the cFIFO (continuos first in first out) priority queue discipline. The simulator makes it possible to service a number of call streams, known from the literature of the subject, such as Poisson, Bernoulli and Pascal streams (BPP) as well as other streams, including those in which traffic parameters have been obtained empirically. The simulator presented in the paper allows researcher to obtain all parameters of queueing systems under scrutiny, while its modulelike structure makes its development to include new disciplines in queue service possible.","PeriodicalId":298711,"journal":{"name":"2016 10th International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133699035","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 : 2016-07-20DOI: 10.1109/CSNDSP.2016.7574027
Umar Raza, R. Kharel, Mohammad Hammoudeh, S. Ekpo, B. Whiteside
Current research in high value-added manufacturing processes, such as the Micro Injection Molding (μIM) process, focuses on the monitoring of the machine process data., which could potentially affect the quality of the end product. Up until now, machine process monitoring has been limited to the machine level and has often bypassed the ambient environmental factors and pre manufacturing factors, which could have direct impact on the end product quality. In light of this, extending the monitoring of high value-added processes to include the ambient manufacturing environment would have numerous benefits in terms of process monitoring accuracy, material condition and product quality. In this paper, we present a novel Service Orientated Architecture (SOA) for monitoring a high value-added manufacturing process and its ambient environment using Wireless Sensor Networks (WSN). The proposed architecture applies the SOA to a network of wireless sensor nodes installed in the uIM machine and the industrial micro-molding environment. Here we present; the generic architectural design, system integration, user interfaces, and initial test results for an experimental testbed system.
{"title":"A service based wireless sensor networks architecture for high value-added process monitoring","authors":"Umar Raza, R. Kharel, Mohammad Hammoudeh, S. Ekpo, B. Whiteside","doi":"10.1109/CSNDSP.2016.7574027","DOIUrl":"https://doi.org/10.1109/CSNDSP.2016.7574027","url":null,"abstract":"Current research in high value-added manufacturing processes, such as the Micro Injection Molding (μIM) process, focuses on the monitoring of the machine process data., which could potentially affect the quality of the end product. Up until now, machine process monitoring has been limited to the machine level and has often bypassed the ambient environmental factors and pre manufacturing factors, which could have direct impact on the end product quality. In light of this, extending the monitoring of high value-added processes to include the ambient manufacturing environment would have numerous benefits in terms of process monitoring accuracy, material condition and product quality. In this paper, we present a novel Service Orientated Architecture (SOA) for monitoring a high value-added manufacturing process and its ambient environment using Wireless Sensor Networks (WSN). The proposed architecture applies the SOA to a network of wireless sensor nodes installed in the uIM machine and the industrial micro-molding environment. Here we present; the generic architectural design, system integration, user interfaces, and initial test results for an experimental testbed system.","PeriodicalId":298711,"journal":{"name":"2016 10th International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132992649","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 : 2016-07-20DOI: 10.1109/CSNDSP.2016.7574017
T. Landolsi, A. Elrefaie
Fading experienced in free-space optical channels is known to impede the performance of pulse position modulation (PPM) communication systems. In this paper, we study the effects of log-normal and gamma-gamma fading on the error performance of optically-preamplified coherent hybrid polarization division-multiplexed (PDM) and quadrature phase-shift keying (QPSK) M-ary PPM systems, referred to as PQ-mPPM. We also provide a comparison with of the performance of direct-detection optically-preamplified PPM systems, referred to as DD-mPPM, under similar channel conditions.
{"title":"Error performance analysis of optically-preamplified QPSK M-ary PPM systems over atmospheric turbulent channels","authors":"T. Landolsi, A. Elrefaie","doi":"10.1109/CSNDSP.2016.7574017","DOIUrl":"https://doi.org/10.1109/CSNDSP.2016.7574017","url":null,"abstract":"Fading experienced in free-space optical channels is known to impede the performance of pulse position modulation (PPM) communication systems. In this paper, we study the effects of log-normal and gamma-gamma fading on the error performance of optically-preamplified coherent hybrid polarization division-multiplexed (PDM) and quadrature phase-shift keying (QPSK) M-ary PPM systems, referred to as PQ-mPPM. We also provide a comparison with of the performance of direct-detection optically-preamplified PPM systems, referred to as DD-mPPM, under similar channel conditions.","PeriodicalId":298711,"journal":{"name":"2016 10th International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123539292","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 : 2016-07-20DOI: 10.1109/CSNDSP.2016.7573931
J. Comellas, G. Junyent
A simple overprovisioning Spectrum Assignment strategy for flexgrid networks is demonstrated as efficient in terms of network throughput at a given blocking probability. Gain is obtained despite allocated spectrum exceeds the strictly required. This is due to the fact that some order is achieved in the spectrum occupation by making bandwidth of connections multiple of each other. This way network fragmentation is alleviated and therefore more traffic can be supported at a given bandwidth blocking probability. The overprovisioning proposal introduced is supported by results obtained through simulation.
{"title":"A simple strategy to improve spectrum use in multi-rate flexgrid optical networks","authors":"J. Comellas, G. Junyent","doi":"10.1109/CSNDSP.2016.7573931","DOIUrl":"https://doi.org/10.1109/CSNDSP.2016.7573931","url":null,"abstract":"A simple overprovisioning Spectrum Assignment strategy for flexgrid networks is demonstrated as efficient in terms of network throughput at a given blocking probability. Gain is obtained despite allocated spectrum exceeds the strictly required. This is due to the fact that some order is achieved in the spectrum occupation by making bandwidth of connections multiple of each other. This way network fragmentation is alleviated and therefore more traffic can be supported at a given bandwidth blocking probability. The overprovisioning proposal introduced is supported by results obtained through simulation.","PeriodicalId":298711,"journal":{"name":"2016 10th International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP)","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127411076","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 : 2016-07-20DOI: 10.1109/CSNDSP.2016.7573991
Stephan Meyer
This Paper presents sigmoid-based modified decision-directed algorithm (MDDA) and modified decision-directed modulus algorithm (MDDMA) to optimize the algorithm behavior within a real-time environment. Using the sigmoid function instead of the signum function for this group of algorithms leads to a decreasing of the equalizer length, enhancement of the step size parameter (μ), optimization of the bit error rate (BER) and to a reduction of the mean square error (MSE). Applying a sigmoid function results in a nonlinear soft decision of the equalizer output compared to the signum function which represents a nonlinear hard decision. Additional to the simulation results, both algorithms are process-optimized for real-time baseband transmission in a digital signal processor (DSP) test-bed for differential modulations schemes. All presented BER simulation results are supported by BER measurements achieved with the laboratory test-bed. The character of the sigmoid-based nonlinearity can be described as a loupe function to increase the operating range of a blind equalizer for fixed step-size parameter.
{"title":"Analysis of sigmoid-based blind equalizer algorithms","authors":"Stephan Meyer","doi":"10.1109/CSNDSP.2016.7573991","DOIUrl":"https://doi.org/10.1109/CSNDSP.2016.7573991","url":null,"abstract":"This Paper presents sigmoid-based modified decision-directed algorithm (MDDA) and modified decision-directed modulus algorithm (MDDMA) to optimize the algorithm behavior within a real-time environment. Using the sigmoid function instead of the signum function for this group of algorithms leads to a decreasing of the equalizer length, enhancement of the step size parameter (μ), optimization of the bit error rate (BER) and to a reduction of the mean square error (MSE). Applying a sigmoid function results in a nonlinear soft decision of the equalizer output compared to the signum function which represents a nonlinear hard decision. Additional to the simulation results, both algorithms are process-optimized for real-time baseband transmission in a digital signal processor (DSP) test-bed for differential modulations schemes. All presented BER simulation results are supported by BER measurements achieved with the laboratory test-bed. The character of the sigmoid-based nonlinearity can be described as a loupe function to increase the operating range of a blind equalizer for fixed step-size parameter.","PeriodicalId":298711,"journal":{"name":"2016 10th International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115415523","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 : 2016-07-20DOI: 10.1109/CSNDSP.2016.7574002
T. Stratil, P. Koudelka, Jakub Jankovych, V. Vasinek, R. Martínek, Tomás Pavelek
Broadband over Visible Light (BVL) is a new trend in research that combines technological principles of VLC during duplex communication between the source of optical radiation and the receiver on the side of the user and utilization of a chipset of the technology Broadband over Power Line (BPL), including provision of connectivity on power conductors. The use of the technology Bias-T proves to be a highly efficient concept of the VLC modulator. The article deals with the design of a high power broadband Bias-T allowing the use of the BVL technology at large SMD LED matrices or matrices containing power LED. The designed Bias-T was created and its functionality verified using a network analyzer and the software-defined radio.
{"title":"Broadband over Visible Light: High power wideband bias-T solution","authors":"T. Stratil, P. Koudelka, Jakub Jankovych, V. Vasinek, R. Martínek, Tomás Pavelek","doi":"10.1109/CSNDSP.2016.7574002","DOIUrl":"https://doi.org/10.1109/CSNDSP.2016.7574002","url":null,"abstract":"Broadband over Visible Light (BVL) is a new trend in research that combines technological principles of VLC during duplex communication between the source of optical radiation and the receiver on the side of the user and utilization of a chipset of the technology Broadband over Power Line (BPL), including provision of connectivity on power conductors. The use of the technology Bias-T proves to be a highly efficient concept of the VLC modulator. The article deals with the design of a high power broadband Bias-T allowing the use of the BVL technology at large SMD LED matrices or matrices containing power LED. The designed Bias-T was created and its functionality verified using a network analyzer and the software-defined radio.","PeriodicalId":298711,"journal":{"name":"2016 10th International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132034095","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 : 2016-07-20DOI: 10.1109/CSNDSP.2016.7574021
Gerald Hörack, P. Pezzei, E. Leitgeb, Matthias Tischlinger
In order to provide a powerful and fast communications infrastructure to end customers and private households, optical fiber connections are on the increase to close the last mile gap. However, this infrastructure expansion is slow and expensive. In contrast to optical fiber, Free Space Optics (FSO) has nowadays become a well-established technology for the last mile access. This contribution gives an overview of commercial FSO systems and investigates their integration into existing optical fiber networks from an economic point of view. Different optical fiber projects for the last mile, including fiber-to-the-home (FTTH) projects and business park connections, were investigated and compared with FSO systems. The results of the study show, that FSO is a viable and cost-effective alternative to fiber optics. Furthermore, a concept of a point-to-multipoint (P2MP) Optical Wireless (OW) system for a flexible broadband network connection in a settlement area is proposed.
{"title":"Economic aspects of free space optics as an alternative broadband network connection for the last mile","authors":"Gerald Hörack, P. Pezzei, E. Leitgeb, Matthias Tischlinger","doi":"10.1109/CSNDSP.2016.7574021","DOIUrl":"https://doi.org/10.1109/CSNDSP.2016.7574021","url":null,"abstract":"In order to provide a powerful and fast communications infrastructure to end customers and private households, optical fiber connections are on the increase to close the last mile gap. However, this infrastructure expansion is slow and expensive. In contrast to optical fiber, Free Space Optics (FSO) has nowadays become a well-established technology for the last mile access. This contribution gives an overview of commercial FSO systems and investigates their integration into existing optical fiber networks from an economic point of view. Different optical fiber projects for the last mile, including fiber-to-the-home (FTTH) projects and business park connections, were investigated and compared with FSO systems. The results of the study show, that FSO is a viable and cost-effective alternative to fiber optics. Furthermore, a concept of a point-to-multipoint (P2MP) Optical Wireless (OW) system for a flexible broadband network connection in a settlement area is proposed.","PeriodicalId":298711,"journal":{"name":"2016 10th International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132055978","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 : 2016-07-20DOI: 10.1109/CSNDSP.2016.7573980
M. López-Benítez
This work presents exact and approximated expressions for the outage probability and average error performance of modulation schemes under η-μ and κ-μ fading channels. Under physical fading models the analytical results can be expressed in terms of elementary functions of the relevant parameters, which not only leads to more tractable expressions but also more efficient numerical evaluations. Simple asymptotic approximations are derived as well. While exact results are given in infinite series forms, a convergence analysis demonstrates that truncated versions of the series with very few terms can achieve the desired level of accuracy. The comparison with simulation results demonstrates the correctness of the exact theoretic expressions as well as the accuracy of their approximated forms.
{"title":"Outage probability and average error performance of modulation schemes under η-μ and κ-μ fading channels in terms of elementary functions","authors":"M. López-Benítez","doi":"10.1109/CSNDSP.2016.7573980","DOIUrl":"https://doi.org/10.1109/CSNDSP.2016.7573980","url":null,"abstract":"This work presents exact and approximated expressions for the outage probability and average error performance of modulation schemes under η-μ and κ-μ fading channels. Under physical fading models the analytical results can be expressed in terms of elementary functions of the relevant parameters, which not only leads to more tractable expressions but also more efficient numerical evaluations. Simple asymptotic approximations are derived as well. While exact results are given in infinite series forms, a convergence analysis demonstrates that truncated versions of the series with very few terms can achieve the desired level of accuracy. The comparison with simulation results demonstrates the correctness of the exact theoretic expressions as well as the accuracy of their approximated forms.","PeriodicalId":298711,"journal":{"name":"2016 10th International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP)","volume":"276 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116070547","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 : 2016-07-20DOI: 10.1109/CSNDSP.2016.7573950
T. Hamza, M. Khalighi, S. Bourennane, P. Léon, J. Opderbecke
We investigate the use of Silicon photomultipliers (SiPMs) for signal detection in underwater wireless optical communication (UWOC) systems. We present an analytical photon counting model for the SiPM and clarify the related noise sources. Then, for a typical UWOC link, we compare the link performance for the two cases of using an SiPM and an avalanche photo-diode, and show to which extent the link span can be increased for the case of an SiPM-based receiver. The results we present testify the practical interest and the feasibility of employing SiPMs in the UWOC context.
{"title":"On the suitability of employing silicon photomultipliers for underwater wireless optical communication links","authors":"T. Hamza, M. Khalighi, S. Bourennane, P. Léon, J. Opderbecke","doi":"10.1109/CSNDSP.2016.7573950","DOIUrl":"https://doi.org/10.1109/CSNDSP.2016.7573950","url":null,"abstract":"We investigate the use of Silicon photomultipliers (SiPMs) for signal detection in underwater wireless optical communication (UWOC) systems. We present an analytical photon counting model for the SiPM and clarify the related noise sources. Then, for a typical UWOC link, we compare the link performance for the two cases of using an SiPM and an avalanche photo-diode, and show to which extent the link span can be increased for the case of an SiPM-based receiver. The results we present testify the practical interest and the feasibility of employing SiPMs in the UWOC context.","PeriodicalId":298711,"journal":{"name":"2016 10th International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123390470","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 : 2016-07-20DOI: 10.1109/CSNDSP.2016.7574005
S. Rajbhandari
White light emitting diodes (LEDs) are becoming the primary source of illumination for the home and office environment. These LEDs can be intensity modulated to transmit high-speed data via an optical carrier. As a result, there is a paradigm shift in indoor wireless communication as the illumination infrastructure can be reused for data communications. It is widely expected that visible light communication (VLC) system will play a significant role in realizing the high-speed data communication envisaged for 5G connectivity. The goal of VLC systems is to provide a reliable and ubiquitous communication link that is an order of magnitude faster than current radio frequency (RF) links. In order to support the high data rates required for the current and future generations of communication systems, a number of techniques were explored for VLC by a number of research groups worldwide. This paper provides an overview of spatial and wavelength division multiplexing that has enabled multi-Gb/s transmission speeds in VLC using low bandwidth LEDs.
{"title":"Spatial and wavelength division multiplexing for high-speed VLC systems: An overview","authors":"S. Rajbhandari","doi":"10.1109/CSNDSP.2016.7574005","DOIUrl":"https://doi.org/10.1109/CSNDSP.2016.7574005","url":null,"abstract":"White light emitting diodes (LEDs) are becoming the primary source of illumination for the home and office environment. These LEDs can be intensity modulated to transmit high-speed data via an optical carrier. As a result, there is a paradigm shift in indoor wireless communication as the illumination infrastructure can be reused for data communications. It is widely expected that visible light communication (VLC) system will play a significant role in realizing the high-speed data communication envisaged for 5G connectivity. The goal of VLC systems is to provide a reliable and ubiquitous communication link that is an order of magnitude faster than current radio frequency (RF) links. In order to support the high data rates required for the current and future generations of communication systems, a number of techniques were explored for VLC by a number of research groups worldwide. This paper provides an overview of spatial and wavelength division multiplexing that has enabled multi-Gb/s transmission speeds in VLC using low bandwidth LEDs.","PeriodicalId":298711,"journal":{"name":"2016 10th International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP)","volume":"89 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121173646","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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