Pub Date : 2022-10-20DOI: 10.1109/ATC55345.2022.9942974
Do Thi Thu Hien, Phan The Duy, Hien Do Hoang, Nghi Hoang Khoa, V. Pham
Virtual cybersecurity training platforms play an important role in developing the knowledge and practice skills of students in educational institutions and universities. It helps learners can access virtual laboratories through web interfaces without any geolocation restriction, especially in the Covid-19 pandemic. Furthermore, instructors can monitor and understand learners' behaviors in practice sessions by analyzing actions and logs from the virtual platform. But, to realize this feature, such a platform must gather data during cybersecurity training for data mining tasks. In this paper, we introduce a virtual laboratory platform to facilitate cybersecurity training courses, namely vLab. In addition, we apply clustering analysis to the actions of learners to better understand the capabilities of trainees in resolving given challenges in digital forensics subject. With the built-in behavior analyzer in vLab, instructors can find out the common mistakes, and the reasons for learners' failure results, or identify whether they actually conduct experiments to get answers for digital forensics challenges or not.
{"title":"A case study for evaluating learners' behaviors from online cybersecurity training platform on digital forensics subject","authors":"Do Thi Thu Hien, Phan The Duy, Hien Do Hoang, Nghi Hoang Khoa, V. Pham","doi":"10.1109/ATC55345.2022.9942974","DOIUrl":"https://doi.org/10.1109/ATC55345.2022.9942974","url":null,"abstract":"Virtual cybersecurity training platforms play an important role in developing the knowledge and practice skills of students in educational institutions and universities. It helps learners can access virtual laboratories through web interfaces without any geolocation restriction, especially in the Covid-19 pandemic. Furthermore, instructors can monitor and understand learners' behaviors in practice sessions by analyzing actions and logs from the virtual platform. But, to realize this feature, such a platform must gather data during cybersecurity training for data mining tasks. In this paper, we introduce a virtual laboratory platform to facilitate cybersecurity training courses, namely vLab. In addition, we apply clustering analysis to the actions of learners to better understand the capabilities of trainees in resolving given challenges in digital forensics subject. With the built-in behavior analyzer in vLab, instructors can find out the common mistakes, and the reasons for learners' failure results, or identify whether they actually conduct experiments to get answers for digital forensics challenges or not.","PeriodicalId":135827,"journal":{"name":"2022 International Conference on Advanced Technologies for Communications (ATC)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129386001","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 : 2022-10-20DOI: 10.1109/ATC55345.2022.9942982
Tien Huu Vu, Huy Phi Cong, Thipphaphone Sisouvong, Xiem HoangVan, Sang NguyenQuang, Minh DoNgoc
Perceptual video quality assessment (VQA) is now essential part of various video applications by controlling the quality for the videos delivered to the users. Recently, Video Multimethod Assessment Fusion (VMAF) is developed by Netflix, known as a full refence VQA model that combines spatial and temporal features to predict perceptual quality. This metric has stronger correlation with human visual system than the conventional metrics such as Peak Signal to Noise Ratio (PSNR) and Structure Similarity Index (SSIM). However, the perceptual video quality is normally degraded due to the content and bitrate variation. This leads to uncomfortable experience for the viewers. In this context, this paper proposes an adaptive quantization parameter (QP) prediction model based on VMAF for video coding to achieve better perceptual quality at a reasonable bitrate. In particular, the Rate Distortion Optimization (RDO) progress of x.264 video codec is improved by using the VMAF scores to find optimal QP map. The results showed that the compression performance of x.264 codec with the proposed method achieved up to 5.95% bitrate saving when compared to the conventional x.264 encoder.
{"title":"VMAF based quantization parameter prediction model for low resolution video coding","authors":"Tien Huu Vu, Huy Phi Cong, Thipphaphone Sisouvong, Xiem HoangVan, Sang NguyenQuang, Minh DoNgoc","doi":"10.1109/ATC55345.2022.9942982","DOIUrl":"https://doi.org/10.1109/ATC55345.2022.9942982","url":null,"abstract":"Perceptual video quality assessment (VQA) is now essential part of various video applications by controlling the quality for the videos delivered to the users. Recently, Video Multimethod Assessment Fusion (VMAF) is developed by Netflix, known as a full refence VQA model that combines spatial and temporal features to predict perceptual quality. This metric has stronger correlation with human visual system than the conventional metrics such as Peak Signal to Noise Ratio (PSNR) and Structure Similarity Index (SSIM). However, the perceptual video quality is normally degraded due to the content and bitrate variation. This leads to uncomfortable experience for the viewers. In this context, this paper proposes an adaptive quantization parameter (QP) prediction model based on VMAF for video coding to achieve better perceptual quality at a reasonable bitrate. In particular, the Rate Distortion Optimization (RDO) progress of x.264 video codec is improved by using the VMAF scores to find optimal QP map. The results showed that the compression performance of x.264 codec with the proposed method achieved up to 5.95% bitrate saving when compared to the conventional x.264 encoder.","PeriodicalId":135827,"journal":{"name":"2022 International Conference on Advanced Technologies for Communications (ATC)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115446466","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 : 2022-10-20DOI: 10.1109/atc55345.2022.9942989
S. Guilley
In recent years, worldwide chip production has increased significantly. The “back to silicon” trend is driven by the digitization of multiple usages as well as the specificities of certain markets. As chips are liable for data protection, the proportion of chips with embedded security features is increasing. Because of the shortened time-to-market, some chips must be ready to be deployed in markets or use-cases unknown at the time of design. Since each market has its own security schemes, chips need to be “pre-certifiable” under different schemes. The design activity is usually tailored to a given set of security requirements. In the new context where multiple requirements will have to be satisfied proactively, design strategies must evolve. In this talk, we shall share experience regarding the design of chips eligible to triple precertification, namely: Common Criteria (CC), NIST FIPS 140 and Chinese OSCCA. The synergies arise at three levels. First, documentation production is rationalized. Typically, in the latest version of FIPS 140 (version 3), lifecycle assurance requirements can be mutualized with the ADV, AGD, ALC and ATE assurance classes in CC. Second, it is often beneficial to combine functional requirements. Consider, for example, the mandatory self-checks of cryptographic algorithms and/or keys in FIPS 140: these are sound precautions that reduce the number of vulnerabilities in the CC context. Third, some specific IPs need to be analyzed more deeply in all the schemes anyhow. For instance, regarding True Random Number Generators (TRNGs), there are very detailed, even intrusive requirements (e.g., access to “raw” bits). Similarly, the standards require testing on millions of bits generated in a row by the TRNG. The OSCCA scheme requires that several TRNG rationales be implemented, so as to withstand total failures. Obviously, this also benefits the resistance to fault attacks under a CC prism. However, it should be noted that some pitfalls should also be avoided. For example, EVITA's secure boot is based on firmware hash, which is incompatible with FIPS 140-3 requirements to leverage the digital signature (from level 3 onward). To sum up, we intend to show that certification efforts can be rationalized to better reach the market, with cost-saving factorization while designing or producing certification-related evidence sets.
近年来，全球芯片产量大幅增长。“回归硅”的趋势是由多种用途的数字化以及某些市场的特殊性驱动的。由于芯片承担着数据保护的责任，具有嵌入式安全功能的芯片所占的比例越来越大。由于上市时间缩短，一些芯片必须准备好在设计时未知的市场或用例中部署。由于每个市场都有自己的安全方案，芯片需要在不同的方案下进行“预认证”。设计活动通常针对一组给定的安全需求进行定制。在必须主动满足多种需求的新环境中，设计策略必须发展。在这次演讲中，我们将分享三重预认证芯片的设计经验，即:通用标准(CC)， NIST FIPS 140和中国OSCCA。协同效应产生于三个层面。首先，文档制作合理化。通常，在最新版本的FIPS 140(版本3)中，生命周期保证需求可以与CC中的ADV、AGD、ALC和ATE保证类相互关联。其次，将功能需求结合起来通常是有益的。例如，考虑FIPS 140中加密算法和/或密钥的强制自检:这些是减少CC上下文中漏洞数量的合理预防措施。第三，一些特定的ip无论如何都需要在所有方案中进行更深入的分析。例如，关于真随机数生成器(trng)，有非常详细的，甚至是侵入性的要求(例如，访问“原始”比特)。同样，标准要求对TRNG连续生成的数百万位进行测试。OSCCA方案要求实施若干TRNG原理，以承受完全失效。显然，这也有利于抵抗CC棱镜下的错误攻击。然而，应该注意的是，一些陷阱也应该避免。例如，EVITA的安全引导基于固件散列，这与FIPS 140-3要求不兼容，无法利用数字签名(从第3级开始)。总而言之，我们打算表明，在设计或生产与认证相关的证据集时，可以通过节省成本的factorization，使认证工作合理化，以更好地进入市场。
{"title":"Multi-Certified Root-of-Trust: Exploiting Synergies","authors":"S. Guilley","doi":"10.1109/atc55345.2022.9942989","DOIUrl":"https://doi.org/10.1109/atc55345.2022.9942989","url":null,"abstract":"In recent years, worldwide chip production has increased significantly. The “back to silicon” trend is driven by the digitization of multiple usages as well as the specificities of certain markets. As chips are liable for data protection, the proportion of chips with embedded security features is increasing. Because of the shortened time-to-market, some chips must be ready to be deployed in markets or use-cases unknown at the time of design. Since each market has its own security schemes, chips need to be “pre-certifiable” under different schemes. The design activity is usually tailored to a given set of security requirements. In the new context where multiple requirements will have to be satisfied proactively, design strategies must evolve. In this talk, we shall share experience regarding the design of chips eligible to triple precertification, namely: Common Criteria (CC), NIST FIPS 140 and Chinese OSCCA. The synergies arise at three levels. First, documentation production is rationalized. Typically, in the latest version of FIPS 140 (version 3), lifecycle assurance requirements can be mutualized with the ADV, AGD, ALC and ATE assurance classes in CC. Second, it is often beneficial to combine functional requirements. Consider, for example, the mandatory self-checks of cryptographic algorithms and/or keys in FIPS 140: these are sound precautions that reduce the number of vulnerabilities in the CC context. Third, some specific IPs need to be analyzed more deeply in all the schemes anyhow. For instance, regarding True Random Number Generators (TRNGs), there are very detailed, even intrusive requirements (e.g., access to “raw” bits). Similarly, the standards require testing on millions of bits generated in a row by the TRNG. The OSCCA scheme requires that several TRNG rationales be implemented, so as to withstand total failures. Obviously, this also benefits the resistance to fault attacks under a CC prism. However, it should be noted that some pitfalls should also be avoided. For example, EVITA's secure boot is based on firmware hash, which is incompatible with FIPS 140-3 requirements to leverage the digital signature (from level 3 onward). To sum up, we intend to show that certification efforts can be rationalized to better reach the market, with cost-saving factorization while designing or producing certification-related evidence sets.","PeriodicalId":135827,"journal":{"name":"2022 International Conference on Advanced Technologies for Communications (ATC)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116347437","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 : 2022-10-20DOI: 10.1109/ATC55345.2022.9943019
Xiaozhou Lu, Sunghwan Kim
Due to the DNA storage system has the advantages such as high densities, longevityand efficient data duplication, more and more researchers have already focused on it. The writing/reading cost is an important indicator of the efficiency of synthesis and sequencing process. In this paper, we kept the encoding and decoding of LDPC unchanged for fair comparison. However, we propose a binary symmetric erasure channel (BSEC) model for the DNA storage system since substitution and deletion errors occurred during the synthesis and sequencing process. And then, the corresponding log-likelihood ratio (LLR) is calculated by observed error statistics under the BSEC model to achieve the lower reading cost, which is the input of the decoder for low-density parity-check (LDPC) code. Since an exact DNA channel model has not been proposed and the mismatch between the observed and theoretical error statistics, a scaling method for LLR is proposed, which can achieve a lower reading cost for DNA storage. We present the relation between total substitution and deletion error rates and scaling coefficients by curve fitting methods. From the simulation results, we can obtain that the performance of our proposed scheme is equal to or slightly better than that from the conventional scheme.
{"title":"Log-likelihood Ratio for Low-Density Parity-Check Codes Under Binary Symmetric Erasure Channel in DNA Storage","authors":"Xiaozhou Lu, Sunghwan Kim","doi":"10.1109/ATC55345.2022.9943019","DOIUrl":"https://doi.org/10.1109/ATC55345.2022.9943019","url":null,"abstract":"Due to the DNA storage system has the advantages such as high densities, longevityand efficient data duplication, more and more researchers have already focused on it. The writing/reading cost is an important indicator of the efficiency of synthesis and sequencing process. In this paper, we kept the encoding and decoding of LDPC unchanged for fair comparison. However, we propose a binary symmetric erasure channel (BSEC) model for the DNA storage system since substitution and deletion errors occurred during the synthesis and sequencing process. And then, the corresponding log-likelihood ratio (LLR) is calculated by observed error statistics under the BSEC model to achieve the lower reading cost, which is the input of the decoder for low-density parity-check (LDPC) code. Since an exact DNA channel model has not been proposed and the mismatch between the observed and theoretical error statistics, a scaling method for LLR is proposed, which can achieve a lower reading cost for DNA storage. We present the relation between total substitution and deletion error rates and scaling coefficients by curve fitting methods. From the simulation results, we can obtain that the performance of our proposed scheme is equal to or slightly better than that from the conventional scheme.","PeriodicalId":135827,"journal":{"name":"2022 International Conference on Advanced Technologies for Communications (ATC)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123809795","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 : 2022-10-20DOI: 10.1109/ATC55345.2022.9943037
Debaleena Datta Gupta, Susmoy Kundu, Emranul Haque, A. Noman, N. H. Hai, Md. Billal Hossain, Feroz Ahmed
A novel study of plasmonic material comparison has been performed on a dual polarized photonic crystal fiber (PCF) based square lattice microchannel incorporated surface plasmon resonance (SPR) sensor which has. Lead and bismuth have been individually deposited on to the micro channel and the performance parameters of the sensor have then been studied and compared. The Finite Element Method (FEM) has been adopted to carry out the numerical investigations. Using lead, for the x- and y-polarized modes respectively, the sensor achieved a highest wavelength sensitivity of 36,000 nm/RIU and 55,000 nm/RIU, maximum amplitude sensitivity of-436.9 $boldsymbol{text{RIU}^{-1}}$ and -719.4 $boldsymbol{text{RIU}^{-1}}$, minimum resolution of $boldsymbol{2.8times 10^{-6}}$ RIU and $boldsymbol{1.8times 10^{-6}}$ RIU, and the highest figure of merit (FOM) of 3007.5 RIU−1and 426.9 $boldsymbol{text{RIU}^{-1}}$, along with a wide analyte refractive index (RI) sensing range. Using bismuth, for dual polarized modes, the sensor obtained a highest wavelength sensitivity of 15,000 nm/RIU and 60,000 nm/RIU, maximum amplitude sensitivity of -241.4 RIU−1 and -224.1 RIU−1, minimum resolution of $boldsymbol{6.7times 10^{-6}}$ RIU and $boldsymbol{1.7times 10^{-6}}$ RIU, highest FOM of 188.6 RIU−1 and 127.7 $mathbf{RIU}^{-1}$, in addition to a broad RI sensing range. The signal to noise ratio (SNR), detection limit, sensor length, and the detection accuracy have also been investigated for the dual polarization using the two metals. With its extremely impressive performance parameters and wide sensing range, the sensor can be used to detect a broad spectrum of analytes, especially, chlorodifluoromethane refrigerant R-22, pseudomonas bacteria, and ethyl-, methyl-, propyl-based alcohol.
{"title":"A Comparative Performance Analysis of Lead & Bismuth Incorporated PCF Based Dual Polarized SPR Sensor","authors":"Debaleena Datta Gupta, Susmoy Kundu, Emranul Haque, A. Noman, N. H. Hai, Md. Billal Hossain, Feroz Ahmed","doi":"10.1109/ATC55345.2022.9943037","DOIUrl":"https://doi.org/10.1109/ATC55345.2022.9943037","url":null,"abstract":"A novel study of plasmonic material comparison has been performed on a dual polarized photonic crystal fiber (PCF) based square lattice microchannel incorporated surface plasmon resonance (SPR) sensor which has. Lead and bismuth have been individually deposited on to the micro channel and the performance parameters of the sensor have then been studied and compared. The Finite Element Method (FEM) has been adopted to carry out the numerical investigations. Using lead, for the x- and y-polarized modes respectively, the sensor achieved a highest wavelength sensitivity of 36,000 nm/RIU and 55,000 nm/RIU, maximum amplitude sensitivity of-436.9 $boldsymbol{text{RIU}^{-1}}$ and -719.4 $boldsymbol{text{RIU}^{-1}}$, minimum resolution of $boldsymbol{2.8times 10^{-6}}$ RIU and $boldsymbol{1.8times 10^{-6}}$ RIU, and the highest figure of merit (FOM) of 3007.5 RIU−1and 426.9 $boldsymbol{text{RIU}^{-1}}$, along with a wide analyte refractive index (RI) sensing range. Using bismuth, for dual polarized modes, the sensor obtained a highest wavelength sensitivity of 15,000 nm/RIU and 60,000 nm/RIU, maximum amplitude sensitivity of -241.4 RIU−1 and -224.1 RIU−1, minimum resolution of $boldsymbol{6.7times 10^{-6}}$ RIU and $boldsymbol{1.7times 10^{-6}}$ RIU, highest FOM of 188.6 RIU−1 and 127.7 $mathbf{RIU}^{-1}$, in addition to a broad RI sensing range. The signal to noise ratio (SNR), detection limit, sensor length, and the detection accuracy have also been investigated for the dual polarization using the two metals. With its extremely impressive performance parameters and wide sensing range, the sensor can be used to detect a broad spectrum of analytes, especially, chlorodifluoromethane refrigerant R-22, pseudomonas bacteria, and ethyl-, methyl-, propyl-based alcohol.","PeriodicalId":135827,"journal":{"name":"2022 International Conference on Advanced Technologies for Communications (ATC)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128997162","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 : 2022-10-20DOI: 10.1109/ATC55345.2022.9943033
Thanh Nguyen Le Long, Hoang-Nam Nguyen
Optical Camera Communication (OCC) delivers data from LEDs to the camera. Artificial lighting, such as LED lights and cameras, are widely available, so OCC will benefit from these current infrastructures. The parameters of the camera that affect the OCC system's data rate will be discussed in this article. In addition, an experimental system for measuring data transmission based on distance and angle is proposed.
{"title":"Research on data transmission rate of Optical Camera Communication using LEDs for positioning system in buildings","authors":"Thanh Nguyen Le Long, Hoang-Nam Nguyen","doi":"10.1109/ATC55345.2022.9943033","DOIUrl":"https://doi.org/10.1109/ATC55345.2022.9943033","url":null,"abstract":"Optical Camera Communication (OCC) delivers data from LEDs to the camera. Artificial lighting, such as LED lights and cameras, are widely available, so OCC will benefit from these current infrastructures. The parameters of the camera that affect the OCC system's data rate will be discussed in this article. In addition, an experimental system for measuring data transmission based on distance and angle is proposed.","PeriodicalId":135827,"journal":{"name":"2022 International Conference on Advanced Technologies for Communications (ATC)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130555068","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 : 2022-10-20DOI: 10.1109/ATC55345.2022.9942967
T. Kojima, Yuto Yoshinaka
Modified Walsh-Hadamard code division multiplexing (MWHCDM) has an anti-blockage capability. It is thus suitable for helicopter satellite communications where the transmission channel is described as the periodic blockage channel. This paper addresses the computational complexity reduction of the initial acquisition for MWHCDM. The conventional initial acquisition scheme employs the sliding Walsh-Hadamard transform (WHT). A narrowing function based on the redundancy of MWHCDM signals is proposed to reduce the sliding WHT. Computer simulation shows that the proposed narrowing function reduces the sliding WHT by about 70% without acquisition performance degradation.
{"title":"An Initial Acquisition Scheme with Reduced Complexity for Modified Walsh-Hadamard Code Division Multiplexing","authors":"T. Kojima, Yuto Yoshinaka","doi":"10.1109/ATC55345.2022.9942967","DOIUrl":"https://doi.org/10.1109/ATC55345.2022.9942967","url":null,"abstract":"Modified Walsh-Hadamard code division multiplexing (MWHCDM) has an anti-blockage capability. It is thus suitable for helicopter satellite communications where the transmission channel is described as the periodic blockage channel. This paper addresses the computational complexity reduction of the initial acquisition for MWHCDM. The conventional initial acquisition scheme employs the sliding Walsh-Hadamard transform (WHT). A narrowing function based on the redundancy of MWHCDM signals is proposed to reduce the sliding WHT. Computer simulation shows that the proposed narrowing function reduces the sliding WHT by about 70% without acquisition performance degradation.","PeriodicalId":135827,"journal":{"name":"2022 International Conference on Advanced Technologies for Communications (ATC)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130851961","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 : 2022-10-20DOI: 10.1109/ATC55345.2022.9942975
Luu Thi Hue, Nguyễn Phạm Thục Anh
Optimal trajectory planning is a problem that needs to be solved in robotic applications. The trajectory is optimally designed in terms of travel time at the same time must satisfy different constraints such as limited torque, range of movement of joints in the workspace, and velocity of joints. This paper presents the optimal trajectory planning of the object in the dual-arm system cooperative movement of the object using a genetic algorithm, the genetic algorithm determines the minimum time motion of the object and then builds the optimal trajectory. Being different from previous research, the reference trajectory is assumed to be the same as the real one. Therefore, the torque at the joints is calculated by using the inverse kinematic and dynamic of the dual-arm robot system. The paper proposes to add a controller when planning optimal trajectory, the torque at the robot joints is calculated from the output of the controller. This design ensures similarity between the design trajectory and the actual implementation. Finally, simulation on Matlab-Simulink with different types of orbits has proved the feasibility of the proposed solution.
{"title":"Planning the optimal trajectory for a dual-arm robot system using a genetic algorithm considering the controller: *Note: Sub-titles are not captured in Xplore and should not be used","authors":"Luu Thi Hue, Nguyễn Phạm Thục Anh","doi":"10.1109/ATC55345.2022.9942975","DOIUrl":"https://doi.org/10.1109/ATC55345.2022.9942975","url":null,"abstract":"Optimal trajectory planning is a problem that needs to be solved in robotic applications. The trajectory is optimally designed in terms of travel time at the same time must satisfy different constraints such as limited torque, range of movement of joints in the workspace, and velocity of joints. This paper presents the optimal trajectory planning of the object in the dual-arm system cooperative movement of the object using a genetic algorithm, the genetic algorithm determines the minimum time motion of the object and then builds the optimal trajectory. Being different from previous research, the reference trajectory is assumed to be the same as the real one. Therefore, the torque at the joints is calculated by using the inverse kinematic and dynamic of the dual-arm robot system. The paper proposes to add a controller when planning optimal trajectory, the torque at the robot joints is calculated from the output of the controller. This design ensures similarity between the design trajectory and the actual implementation. Finally, simulation on Matlab-Simulink with different types of orbits has proved the feasibility of the proposed solution.","PeriodicalId":135827,"journal":{"name":"2022 International Conference on Advanced Technologies for Communications (ATC)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129562827","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 : 2022-10-20DOI: 10.1109/ATC55345.2022.9942998
Quang-Kien Trinh, Ngoc-Anh Vu, Hai-Nam Le, Thi-Hong-Tham Tran, T. Hoang, Dinh-Chi Tran, X. Pham
This paper presents the analysis and design of a VHF Direct Sampling RF Receiver (DSR). The under-sampling technique has been adopted in this structure where the high-frequency RF signal is digitalized by a low-speed ADC. This technique allows better selection of the ADC dynamic range. In addition, using a lower sampling rate ADC enables a cost-effective design and energy-saving, as well as simplifies the signal processing in the digital domain. The prototype of the proposed receiver has been implemented on FPGA, a 200 MSPS commercial ADC is used to digitize the RF signal in the 200 MHz to 300 MHz range in Nyquist zone 3 and serves as the key component for the RF frontend. Our experimental results show that the proposed receiver meets the key criteria of the commercial receiver, with a sensitivity smaller than 0.225 µV, 90 dB proximity selectivity, and 100 dB dynamic range.
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Pub Date : 2022-10-20DOI: 10.1109/ATC55345.2022.9942984
Duc-Hieu Nguyen, M. Nguyen, Hai-Chau Le
The electrocardiogram (ECG) waveforms, that are P-, Q-, R-, S-, and T-waves expressing the heart activities, have been widely employed for the detection of heart disasters using the distance between adjacent peaks. Among them, R-peak plays the most important role in diagnosing heart diseases. In this work, we propose an efficient R-peak detection solution that utilizes Butterworth bypass filter, Ensemble Empirical Mode Decomposition (EEMD), and Hilbert Transform (HT) for ECG signals. In our approach, EEMD is employed to extract QRS complexes in ECG signals while Hilbert transform is then applied for obtaining the envelope for the R-peak detection of the ECG signal. Firstly, the baseline wander, artifacts, and noises of raw ECG signals will be removed by using a Butterworth filter. The filtered signal is decomposed into a set of Intrinsic Mode Functions (IMFs), monocomponent signals, by implementing the Ensemble EMD method and the first three IMFs that carry sufficient R-peak information are then combined. After that, the first derivative of the combined signal is calculated to figure out the minima or maxima points and subsequently, the differentiated signal will be transformed to determine the envelope by using HT. Finally, based on that, the maximal positions which describe the R-peak positions are marked. Numerical experiments have been done on a popular public database, MIT-BIH Arrhythmia Database, for verifying the performance of our proposed solution in comparison with conventional algorithms. The obtained results prove that our developed approach outperforms the comparative conventional ones. It achieves the average sensitivity and specificity of 98.74% and 98.71% respectively with a detection error rate of 0.028%.
{"title":"An Efficient Electrocardiogram R-peak Detection Exploiting Ensemble Empirical Mode Decomposition and Hilbert Transform","authors":"Duc-Hieu Nguyen, M. Nguyen, Hai-Chau Le","doi":"10.1109/ATC55345.2022.9942984","DOIUrl":"https://doi.org/10.1109/ATC55345.2022.9942984","url":null,"abstract":"The electrocardiogram (ECG) waveforms, that are P-, Q-, R-, S-, and T-waves expressing the heart activities, have been widely employed for the detection of heart disasters using the distance between adjacent peaks. Among them, R-peak plays the most important role in diagnosing heart diseases. In this work, we propose an efficient R-peak detection solution that utilizes Butterworth bypass filter, Ensemble Empirical Mode Decomposition (EEMD), and Hilbert Transform (HT) for ECG signals. In our approach, EEMD is employed to extract QRS complexes in ECG signals while Hilbert transform is then applied for obtaining the envelope for the R-peak detection of the ECG signal. Firstly, the baseline wander, artifacts, and noises of raw ECG signals will be removed by using a Butterworth filter. The filtered signal is decomposed into a set of Intrinsic Mode Functions (IMFs), monocomponent signals, by implementing the Ensemble EMD method and the first three IMFs that carry sufficient R-peak information are then combined. After that, the first derivative of the combined signal is calculated to figure out the minima or maxima points and subsequently, the differentiated signal will be transformed to determine the envelope by using HT. Finally, based on that, the maximal positions which describe the R-peak positions are marked. Numerical experiments have been done on a popular public database, MIT-BIH Arrhythmia Database, for verifying the performance of our proposed solution in comparison with conventional algorithms. The obtained results prove that our developed approach outperforms the comparative conventional ones. It achieves the average sensitivity and specificity of 98.74% and 98.71% respectively with a detection error rate of 0.028%.","PeriodicalId":135827,"journal":{"name":"2022 International Conference on Advanced Technologies for Communications (ATC)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126859010","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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