Pub Date : 2022-07-20DOI: 10.1109/CSNDSP54353.2022.9907992
F. M. Alsalami, S. Rajbhandari, Zahir Ahmad, D. Grace
In local oscillator (LLO)-based continuous-variable quantum key distribution (CV-QKD), a difference between the linewidth values of two free-running lasers at Alice and Bob induces a phase drift noise. This work proposes a novel minimax filter-based phase tracking that aims to minimize the phase drift considering maximum residual phase error to achieve optimal phase estimation. Simulation results show that the minimax filter offers a lower phase estimation mean square error (MSE) value compared to the Kalman filter when worst-case phase drift error due to high linewidth difference or high measurement noise values are considered.
{"title":"Scalar Minimax Filter-based Phase Tracking for Continuous-Variable Quantum Key Distribution","authors":"F. M. Alsalami, S. Rajbhandari, Zahir Ahmad, D. Grace","doi":"10.1109/CSNDSP54353.2022.9907992","DOIUrl":"https://doi.org/10.1109/CSNDSP54353.2022.9907992","url":null,"abstract":"In local oscillator (LLO)-based continuous-variable quantum key distribution (CV-QKD), a difference between the linewidth values of two free-running lasers at Alice and Bob induces a phase drift noise. This work proposes a novel minimax filter-based phase tracking that aims to minimize the phase drift considering maximum residual phase error to achieve optimal phase estimation. Simulation results show that the minimax filter offers a lower phase estimation mean square error (MSE) value compared to the Kalman filter when worst-case phase drift error due to high linewidth difference or high measurement noise values are considered.","PeriodicalId":288069,"journal":{"name":"2022 13th International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP)","volume":"46 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131776974","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 : 2022-07-20DOI: 10.1109/CSNDSP54353.2022.9908037
Miquel Masanas, V. Polo, J. Prat
Two applications for splitter-based, coherent passive optical networks are investigated. Coherent technologies enable ultra-dense wavelength division multiplexing, increasing the dedicated data rates per application, the power budget and the spectral efficiency of the network, all within a single fibre for bidirectional transmission. In these works, optical single sideband (OSSB) technologies, along with RF modulations, are used to decrease complexity in the proposed networks.
{"title":"Single Sideband Techniques for Next Generation Low-Cost UD-WDM Coherent PONs","authors":"Miquel Masanas, V. Polo, J. Prat","doi":"10.1109/CSNDSP54353.2022.9908037","DOIUrl":"https://doi.org/10.1109/CSNDSP54353.2022.9908037","url":null,"abstract":"Two applications for splitter-based, coherent passive optical networks are investigated. Coherent technologies enable ultra-dense wavelength division multiplexing, increasing the dedicated data rates per application, the power budget and the spectral efficiency of the network, all within a single fibre for bidirectional transmission. In these works, optical single sideband (OSSB) technologies, along with RF modulations, are used to decrease complexity in the proposed networks.","PeriodicalId":288069,"journal":{"name":"2022 13th International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114974847","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 : 2022-07-20DOI: 10.1109/CSNDSP54353.2022.9907979
H. Ivanov, E. Leitgeb
Terrestrial Free Space Optical (FSO) systems aim to provide an ultra-broadband connectivity within core, metro and access networks. While FSO is considered as a promising solution that meets the data throughput demands of new 5G and Internet of Things (IoT) era, the adverse atmospheric effects and in particular Mie scattering (fog), impose significant risks for communication outage events. In order to foresee and evaluate those fog-related issues within an optical wireless link, the current paper reports on experimental setup utilizing artificial fog sources based on mixture of different highly purified glycols and water. As means of determining the approach feasibility, both atmospheric microphysics by means of empirical modified Gamma Particle Size Distribution (PSD) fog functions and Mie theory are used to estimate the artificially simulated Mie scattering attenuation of glycol-water fluids characterized by their complex refractive indices. The obtained results for moderate continental fog and different glycol concentration demonstrate 69.7 dB/km FSO losses at average which outcome coincides with a naturally occurred fog event. Moreover, all results are compared with analyzed PSDs obtained based on laser diffraction system for two types of fog machines that operate with the considered glycol-water fluids.
{"title":"Artificial Generation of Mie Scattering Conditions for FSO Fog Chambers","authors":"H. Ivanov, E. Leitgeb","doi":"10.1109/CSNDSP54353.2022.9907979","DOIUrl":"https://doi.org/10.1109/CSNDSP54353.2022.9907979","url":null,"abstract":"Terrestrial Free Space Optical (FSO) systems aim to provide an ultra-broadband connectivity within core, metro and access networks. While FSO is considered as a promising solution that meets the data throughput demands of new 5G and Internet of Things (IoT) era, the adverse atmospheric effects and in particular Mie scattering (fog), impose significant risks for communication outage events. In order to foresee and evaluate those fog-related issues within an optical wireless link, the current paper reports on experimental setup utilizing artificial fog sources based on mixture of different highly purified glycols and water. As means of determining the approach feasibility, both atmospheric microphysics by means of empirical modified Gamma Particle Size Distribution (PSD) fog functions and Mie theory are used to estimate the artificially simulated Mie scattering attenuation of glycol-water fluids characterized by their complex refractive indices. The obtained results for moderate continental fog and different glycol concentration demonstrate 69.7 dB/km FSO losses at average which outcome coincides with a naturally occurred fog event. Moreover, all results are compared with analyzed PSDs obtained based on laser diffraction system for two types of fog machines that operate with the considered glycol-water fluids.","PeriodicalId":288069,"journal":{"name":"2022 13th International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP)","volume":"96 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122815858","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 : 2022-07-20DOI: 10.1109/CSNDSP54353.2022.9908045
Luís Duarte, M. Vala, Carlos Ribeiro, L. N. Alves, C. Fernandes, R. Caldeirinha
This paper reports on the first results of a Swept Time-Delay Cross Correlator (STDCC) based radar performance for the detection of concealed objects in a foliage. The real-time STDCC radar operating at 25 GHz with 500 MHz bandwidth detection capabilities is benchmarked together with a VNA technique using a central frequency of 11 GHz with 18 GHz bandwidth. A set of measurements were performed to assess the attenuation caused by multiple trees and compare them with literature model estimations. Both radar techniques may accurately detect the position of a concealed corner reflector, showing their great stability over time. The object distance accuracy was confirmed to be related with the used bandwidth, having both technologies been compared with different and same bandwidths. Our analysis also confirmed the expected 20 dB of single tree attenuation, showing similar detections/attenuations with both radar systems.
{"title":"A feasibility study on real-time concealed object detection in foliage using STDCC radar","authors":"Luís Duarte, M. Vala, Carlos Ribeiro, L. N. Alves, C. Fernandes, R. Caldeirinha","doi":"10.1109/CSNDSP54353.2022.9908045","DOIUrl":"https://doi.org/10.1109/CSNDSP54353.2022.9908045","url":null,"abstract":"This paper reports on the first results of a Swept Time-Delay Cross Correlator (STDCC) based radar performance for the detection of concealed objects in a foliage. The real-time STDCC radar operating at 25 GHz with 500 MHz bandwidth detection capabilities is benchmarked together with a VNA technique using a central frequency of 11 GHz with 18 GHz bandwidth. A set of measurements were performed to assess the attenuation caused by multiple trees and compare them with literature model estimations. Both radar techniques may accurately detect the position of a concealed corner reflector, showing their great stability over time. The object distance accuracy was confirmed to be related with the used bandwidth, having both technologies been compared with different and same bandwidths. Our analysis also confirmed the expected 20 dB of single tree attenuation, showing similar detections/attenuations with both radar systems.","PeriodicalId":288069,"journal":{"name":"2022 13th International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129373027","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 : 2022-07-20DOI: 10.1109/CSNDSP54353.2022.9907896
Rida Zia-ul-Mustafa, Shadi Salehi Boroujeni, Carlos Guerra-Yánez, Zabih Ghassemlooy, H. L. Minh, S. Zvánovec
Visible light communication (VLC) is a promising technology to improve the capacity of the existing indoor wireless communication systems. However, VLC also comes with security concerns in line with other wireless and wired transmission systems. In this regard, quantum key distribution (QKD) has been proposed as an optimal solution to enhance the security of VLC networks at the physical layer. This paper serves as a review study of the QKD and highlights its state-of-the-art, applications and challenges in the prospect of securing the VLC systems.
{"title":"Quantum Key Distribution for Visible Light Communications: A Review","authors":"Rida Zia-ul-Mustafa, Shadi Salehi Boroujeni, Carlos Guerra-Yánez, Zabih Ghassemlooy, H. L. Minh, S. Zvánovec","doi":"10.1109/CSNDSP54353.2022.9907896","DOIUrl":"https://doi.org/10.1109/CSNDSP54353.2022.9907896","url":null,"abstract":"Visible light communication (VLC) is a promising technology to improve the capacity of the existing indoor wireless communication systems. However, VLC also comes with security concerns in line with other wireless and wired transmission systems. In this regard, quantum key distribution (QKD) has been proposed as an optimal solution to enhance the security of VLC networks at the physical layer. This paper serves as a review study of the QKD and highlights its state-of-the-art, applications and challenges in the prospect of securing the VLC systems.","PeriodicalId":288069,"journal":{"name":"2022 13th International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP)","volume":"60 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127680655","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 : 2022-07-20DOI: 10.1109/CSNDSP54353.2022.9908040
I. Cano, Giuseppe Caruso, D. Nesset, G. Talli
We evaluate TDEC in a 50G-PON downstream through experiments and show the relation with receiver sensitivity at different fiber lengths and ER. The results show that TDEC effectively follows the penalty induced by transmission impairments.
{"title":"Relation Between TDEC, Extinction Ratio and Chromatic Dispersion in 50G PON","authors":"I. Cano, Giuseppe Caruso, D. Nesset, G. Talli","doi":"10.1109/CSNDSP54353.2022.9908040","DOIUrl":"https://doi.org/10.1109/CSNDSP54353.2022.9908040","url":null,"abstract":"We evaluate TDEC in a 50G-PON downstream through experiments and show the relation with receiver sensitivity at different fiber lengths and ER. The results show that TDEC effectively follows the penalty induced by transmission impairments.","PeriodicalId":288069,"journal":{"name":"2022 13th International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP)","volume":"66 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125680648","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 : 2022-07-20DOI: 10.1109/CSNDSP54353.2022.9908039
Leona McNulty, V. Vassilakis
In recent years, the world has witnessed a significant increase in the number of IoT devices, with a global and continuous rise in the demand for their multi-purpose applications. However, malicious use of IoT devices began to emerge among cybercriminals. IoT-enabled cyberattacks and botnets, such as the Mirai botnet and its variants and imitators, demonstrate that the industry needs to better secure IoT devices and networks; otherwise, there will be higher risks of exposing the Internet’s infrastructure and services to increasingly disruptive DDoS attacks. This paper presents the results of a study of IoT botnets. We focus on their distinctive characteristics, exploits used, and cyberattack capabilities. In total, we have reviewed and compared 46 recent IoT botnets. We also present details of the main CPU architectures targeted by these IoT botnets. We illustrate that IoT botnets pose a significant threat to private individuals and enterprises by employing effective evasion mechanisms, encrypted communication, and targeting a wide range of systems and networks.
{"title":"IoT Botnets: Characteristics, Exploits, Attack Capabilities, and Targets","authors":"Leona McNulty, V. Vassilakis","doi":"10.1109/CSNDSP54353.2022.9908039","DOIUrl":"https://doi.org/10.1109/CSNDSP54353.2022.9908039","url":null,"abstract":"In recent years, the world has witnessed a significant increase in the number of IoT devices, with a global and continuous rise in the demand for their multi-purpose applications. However, malicious use of IoT devices began to emerge among cybercriminals. IoT-enabled cyberattacks and botnets, such as the Mirai botnet and its variants and imitators, demonstrate that the industry needs to better secure IoT devices and networks; otherwise, there will be higher risks of exposing the Internet’s infrastructure and services to increasingly disruptive DDoS attacks. This paper presents the results of a study of IoT botnets. We focus on their distinctive characteristics, exploits used, and cyberattack capabilities. In total, we have reviewed and compared 46 recent IoT botnets. We also present details of the main CPU architectures targeted by these IoT botnets. We illustrate that IoT botnets pose a significant threat to private individuals and enterprises by employing effective evasion mechanisms, encrypted communication, and targeting a wide range of systems and networks.","PeriodicalId":288069,"journal":{"name":"2022 13th International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125508841","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 : 2022-07-20DOI: 10.1109/CSNDSP54353.2022.9907936
Karin Plimon, J. Ebert, H. Schlemmer, A. Mengali, A. Ginesi
Precoding is a well-known method for interference mitigation that enables a high throughput satellite (HTS) multi-beam system to step up from traditional 4-coloring (FR-4) to a full frequency re-use (FR-1) but challenges the resources with high computational complexity. The calculation of the optimum precoding matrix and the number of complex multiplications are the two most challenging tasks in terms of computational complexity to accomplish when using this interference mitigation method. In this article, we tackle the first problem by utilizing a MMSE approach to determine the precoding matrix and focus instead on the latter. We propose a method to reduce the number of required complex multiplications in the gateway. The performance is evaluated based on different antenna patterns to identify crucial antenna pattern characteristics that define the number of required multiplications. The results indicate that the number of multiplications can be reduced depending on the present SNR and side lobe levels in the antenna pattern.
{"title":"Low Complexity Subset Precoding for High Throughput Satellite Systems","authors":"Karin Plimon, J. Ebert, H. Schlemmer, A. Mengali, A. Ginesi","doi":"10.1109/CSNDSP54353.2022.9907936","DOIUrl":"https://doi.org/10.1109/CSNDSP54353.2022.9907936","url":null,"abstract":"Precoding is a well-known method for interference mitigation that enables a high throughput satellite (HTS) multi-beam system to step up from traditional 4-coloring (FR-4) to a full frequency re-use (FR-1) but challenges the resources with high computational complexity. The calculation of the optimum precoding matrix and the number of complex multiplications are the two most challenging tasks in terms of computational complexity to accomplish when using this interference mitigation method. In this article, we tackle the first problem by utilizing a MMSE approach to determine the precoding matrix and focus instead on the latter. We propose a method to reduce the number of required complex multiplications in the gateway. The performance is evaluated based on different antenna patterns to identify crucial antenna pattern characteristics that define the number of required multiplications. The results indicate that the number of multiplications can be reduced depending on the present SNR and side lobe levels in the antenna pattern.","PeriodicalId":288069,"journal":{"name":"2022 13th International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP)","volume":"2005 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128768173","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 : 2022-07-20DOI: 10.1109/CSNDSP54353.2022.9907913
Leonardo Leyva, D. Castanheira, Adão Silva, A. Gameiro
This paper studies the performance of the quasi-orthogonal Tirkkonen spatial-frequency block code (SFBC) for integrated sensing and communication (ISAC) scenarios. The considered scenario is a MIMO monostatic ISAC base station (BS), where transmitter and radar antenna arrays are co-located enabling the virtual array concept. The quasi-orthogonal Tirkkonen SFBC is encapsulated in an OFDM waveform, the radar processing is performed over the resulting OFDM frame. The performance in terms of radar and communication metrics of Tirkkonen SFBC is presented and compared with orthogonal Alamouti SFBC and the spectrally interleaved waveform approach, widely used in radar-like scenarios. The resulting Mean Square Error (MSE) of the Angle of Arrival (AoA) is chosen as the radar metric while the bit-error-rate (BER) is used to present the communication performance. The results show that Tirkkonen is a good candidate for future ISAC scenarios.
{"title":"Quasi-Orthogonal SFBC for Monostatic MIMO ISAC Scenarios","authors":"Leonardo Leyva, D. Castanheira, Adão Silva, A. Gameiro","doi":"10.1109/CSNDSP54353.2022.9907913","DOIUrl":"https://doi.org/10.1109/CSNDSP54353.2022.9907913","url":null,"abstract":"This paper studies the performance of the quasi-orthogonal Tirkkonen spatial-frequency block code (SFBC) for integrated sensing and communication (ISAC) scenarios. The considered scenario is a MIMO monostatic ISAC base station (BS), where transmitter and radar antenna arrays are co-located enabling the virtual array concept. The quasi-orthogonal Tirkkonen SFBC is encapsulated in an OFDM waveform, the radar processing is performed over the resulting OFDM frame. The performance in terms of radar and communication metrics of Tirkkonen SFBC is presented and compared with orthogonal Alamouti SFBC and the spectrally interleaved waveform approach, widely used in radar-like scenarios. The resulting Mean Square Error (MSE) of the Angle of Arrival (AoA) is chosen as the radar metric while the bit-error-rate (BER) is used to present the communication performance. The results show that Tirkkonen is a good candidate for future ISAC scenarios.","PeriodicalId":288069,"journal":{"name":"2022 13th International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132598522","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 : 2022-07-20DOI: 10.1109/CSNDSP54353.2022.9908057
Zun Htay, Zabih Ghassemlooy, S. Zvánovec, M. M. Abadi, A. Burton
In this paper, we propose a proof of concept for the software defined-based free space optical communication (FSO) using GNU radio eco-system. We present a highly reconfigurable real-time FSO system to emulate the atmospheric conditions for the medium-to-long transmission range. Using an experimental testbed, we validate the proposed concept utilizing universal software radio peripherals. We show that the software defined FSO system offers greater flexibility, less complexity, and provides real-time signal processing results without the need to change the architecture of the hardware and the physical link space. The system performance is evaluated in terms of the estimated bit error rate under fog and turbulence conditions for 200 m link span.
{"title":"An Experimental Testbed for Implementation and Validation of Software defined FSO under Atmospheric Conditions using USRPs","authors":"Zun Htay, Zabih Ghassemlooy, S. Zvánovec, M. M. Abadi, A. Burton","doi":"10.1109/CSNDSP54353.2022.9908057","DOIUrl":"https://doi.org/10.1109/CSNDSP54353.2022.9908057","url":null,"abstract":"In this paper, we propose a proof of concept for the software defined-based free space optical communication (FSO) using GNU radio eco-system. We present a highly reconfigurable real-time FSO system to emulate the atmospheric conditions for the medium-to-long transmission range. Using an experimental testbed, we validate the proposed concept utilizing universal software radio peripherals. We show that the software defined FSO system offers greater flexibility, less complexity, and provides real-time signal processing results without the need to change the architecture of the hardware and the physical link space. The system performance is evaluated in terms of the estimated bit error rate under fog and turbulence conditions for 200 m link span.","PeriodicalId":288069,"journal":{"name":"2022 13th International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122200495","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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