Pub Date : 2021-01-01DOI: 10.1504/ijscc.2021.10040996
J. Mestoui, J. Foshi, Abdlmounim Hmamou, Serghini Elaage, M. E. Ghzaoui
{"title":"MB-OOK transceiver design for terahertz wireless communication systems","authors":"J. Mestoui, J. Foshi, Abdlmounim Hmamou, Serghini Elaage, M. E. Ghzaoui","doi":"10.1504/ijscc.2021.10040996","DOIUrl":"https://doi.org/10.1504/ijscc.2021.10040996","url":null,"abstract":"","PeriodicalId":38610,"journal":{"name":"International Journal of Systems, Control and Communications","volume":"3 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83323238","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 : 2021-01-01DOI: 10.1504/IJSCC.2021.10038590
Rupom Rongphar, Rajkishur Mudoi
{"title":"Performance analysis of TAS/MRC-based MIMO system over K fading channels","authors":"Rupom Rongphar, Rajkishur Mudoi","doi":"10.1504/IJSCC.2021.10038590","DOIUrl":"https://doi.org/10.1504/IJSCC.2021.10038590","url":null,"abstract":"","PeriodicalId":38610,"journal":{"name":"International Journal of Systems, Control and Communications","volume":"73 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74025665","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 : 2021-01-01DOI: 10.1504/IJSCC.2021.10037811
Shubhranshu Mohan Parida, P. Rout, S. Kar
{"title":"A modified sliding mode controller for a permanent magnet synchronous generator-based wind turbine system","authors":"Shubhranshu Mohan Parida, P. Rout, S. Kar","doi":"10.1504/IJSCC.2021.10037811","DOIUrl":"https://doi.org/10.1504/IJSCC.2021.10037811","url":null,"abstract":"","PeriodicalId":38610,"journal":{"name":"International Journal of Systems, Control and Communications","volume":"5 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79194056","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 : 2021-01-01DOI: 10.1504/IJSCC.2021.10037126
Asma Ahmadinejad, S. Talebi
{"title":"Performance assessment of different chaotic systems in PI-observer based communication system","authors":"Asma Ahmadinejad, S. Talebi","doi":"10.1504/IJSCC.2021.10037126","DOIUrl":"https://doi.org/10.1504/IJSCC.2021.10037126","url":null,"abstract":"","PeriodicalId":38610,"journal":{"name":"International Journal of Systems, Control and Communications","volume":"21 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78927788","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 : 2020-04-15DOI: 10.1504/ijscc.2020.10027724
M. Charqi, N. Chaibi, M. Ouahi, E. Tissir
This paper is concerned with the problems of admissibility and control for a class of discrete-time switched singular systems with time-delay for arbitrary switching law. Firstly, a new delay-dependent sufficient condition is established in terms of linear matrix inequalities (LMIs) by constructing a novel Lyapunov-Krasovskii functional so that the discrete-time switched singular systems with time-delay to be regular, causal and asymptotically stable. The proposed criterion is proved to have some advantages over other existing results. Then, a state feedback controller is designed to guarantee the admissibility of the closed-loop switched singular delay system, by using the skills of matrix theory. Some slack variables are introduced for more relaxation. Finally, numerical examples are provided to demonstrate the effectiveness of the proposed approach and to compare the obtained results with some existing ones in the literature.
{"title":"Delay-dependent admissibility and control of discrete-time switched singular systems with time-delay","authors":"M. Charqi, N. Chaibi, M. Ouahi, E. Tissir","doi":"10.1504/ijscc.2020.10027724","DOIUrl":"https://doi.org/10.1504/ijscc.2020.10027724","url":null,"abstract":"This paper is concerned with the problems of admissibility and control for a class of discrete-time switched singular systems with time-delay for arbitrary switching law. Firstly, a new delay-dependent sufficient condition is established in terms of linear matrix inequalities (LMIs) by constructing a novel Lyapunov-Krasovskii functional so that the discrete-time switched singular systems with time-delay to be regular, causal and asymptotically stable. The proposed criterion is proved to have some advantages over other existing results. Then, a state feedback controller is designed to guarantee the admissibility of the closed-loop switched singular delay system, by using the skills of matrix theory. Some slack variables are introduced for more relaxation. Finally, numerical examples are provided to demonstrate the effectiveness of the proposed approach and to compare the obtained results with some existing ones in the literature.","PeriodicalId":38610,"journal":{"name":"International Journal of Systems, Control and Communications","volume":"43 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75243985","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 : 2020-03-19DOI: 10.1504/ijscc.2020.10027713
Mohammad Salah, Hazem M. El-Hageen, Osamah. S. Badarneh, M. Ababneh, M. A. Mallouh
Chaos phenomena can be found in many scientific disciplines such as astronomy, biology, chemistry, engineering, geology, mathematics, medicine, meteorology, and even social sciences. Such phenomena can seriously affect the behaviour of some vital applications such as communications and security systems. Hence, a controller is required to handle chaotic behaviours that affect systems stability. In this paper, a robust output feedback controller is proposed to stabilise electronic circuits used in communications and security systems that exhibit chaotic behaviours. The proposed controller is designed to deal with unknown system parameters and time-varying uncertainties. Only the system output is utilised in the proposed controller while estimating the system states. For that purpose, a high gain observer is designed and utilised to estimate the unknown states. In addition, a numerical study is introduced to demonstrate the robustness and effectiveness of the controller design under various system configurations and different operating conditions. As a result, a satisfactory tracking performance is observed.
{"title":"Robust output feedback control for uncertain chaotic systems","authors":"Mohammad Salah, Hazem M. El-Hageen, Osamah. S. Badarneh, M. Ababneh, M. A. Mallouh","doi":"10.1504/ijscc.2020.10027713","DOIUrl":"https://doi.org/10.1504/ijscc.2020.10027713","url":null,"abstract":"Chaos phenomena can be found in many scientific disciplines such as astronomy, biology, chemistry, engineering, geology, mathematics, medicine, meteorology, and even social sciences. Such phenomena can seriously affect the behaviour of some vital applications such as communications and security systems. Hence, a controller is required to handle chaotic behaviours that affect systems stability. In this paper, a robust output feedback controller is proposed to stabilise electronic circuits used in communications and security systems that exhibit chaotic behaviours. The proposed controller is designed to deal with unknown system parameters and time-varying uncertainties. Only the system output is utilised in the proposed controller while estimating the system states. For that purpose, a high gain observer is designed and utilised to estimate the unknown states. In addition, a numerical study is introduced to demonstrate the robustness and effectiveness of the controller design under various system configurations and different operating conditions. As a result, a satisfactory tracking performance is observed.","PeriodicalId":38610,"journal":{"name":"International Journal of Systems, Control and Communications","volume":"16 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80745804","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 : 2020-03-18DOI: 10.1504/ijscc.2020.10027725
Y. Errami, A. Obbadi, S. Sahnoun
This study presents a control strategy for grid-connected WES based on a permanent magnet synchronous generator (PMSG). The power system comprises five PMSG-based 2 MW which connected to the dc-bus with rectifiers, whereas the grid-side inverter is connected to the power grid throughout a grid-side filter. The objectives of grid-side inverter are to deliver the energy from the PMSGs side to the power grid, to regulate the dc-bus and to achieve unity power factor (UPF). The generator side converters are employed to control the velocities of the PMSGs with maximum power point tracking algorithm. Moreover, a pitch control algorithm is used. The proposed vector control technique (VCT) is able to fully decouple the quadrature (q) and direct (d) components of the currents. Simulations results using MATLAB/Simulink software are presented to validate the proposed control scheme for fault conditions into the grid as well as for normal working conditions.
{"title":"Control of PMSG wind electrical system in network context and during the MPP tracking process","authors":"Y. Errami, A. Obbadi, S. Sahnoun","doi":"10.1504/ijscc.2020.10027725","DOIUrl":"https://doi.org/10.1504/ijscc.2020.10027725","url":null,"abstract":"This study presents a control strategy for grid-connected WES based on a permanent magnet synchronous generator (PMSG). The power system comprises five PMSG-based 2 MW which connected to the dc-bus with rectifiers, whereas the grid-side inverter is connected to the power grid throughout a grid-side filter. The objectives of grid-side inverter are to deliver the energy from the PMSGs side to the power grid, to regulate the dc-bus and to achieve unity power factor (UPF). The generator side converters are employed to control the velocities of the PMSGs with maximum power point tracking algorithm. Moreover, a pitch control algorithm is used. The proposed vector control technique (VCT) is able to fully decouple the quadrature (q) and direct (d) components of the currents. Simulations results using MATLAB/Simulink software are presented to validate the proposed control scheme for fault conditions into the grid as well as for normal working conditions.","PeriodicalId":38610,"journal":{"name":"International Journal of Systems, Control and Communications","volume":"19 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75971105","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 : 2020-03-18DOI: 10.1504/ijscc.2020.10027715
Nassira Zerari, M. Chemachema, N. Essounbouli
This paper studies an adaptive tracking control for a class of multi-input multi-output (MIMO) non-affine nonlinear systems, with input dead-zone nonlinearity and external disturbances. By using the mean-value theorem, the system model is transformed into an affine form so as the difficulty in controlling non-affine systems is overcome. In the proposed control design, neural networks (NNs) are used to approximate the unknown nonlinearities based on their universal approximation properties. To compensate for approximation errors and external disturbances, an adaptive robust control term is introduced. In comparison with existing approaches, the structure of the designed controller is considerably simpler, and can handle a wider range of nonlinear systems. The stability of the closed-loop system is investigated by using Lyapunov theory. The simulation results illustrate the proposed method.
{"title":"Adaptive neural network control for a class of MIMO non-affine uncertain systems with input dead-zone nonlinearity and external disturbance","authors":"Nassira Zerari, M. Chemachema, N. Essounbouli","doi":"10.1504/ijscc.2020.10027715","DOIUrl":"https://doi.org/10.1504/ijscc.2020.10027715","url":null,"abstract":"This paper studies an adaptive tracking control for a class of multi-input multi-output (MIMO) non-affine nonlinear systems, with input dead-zone nonlinearity and external disturbances. By using the mean-value theorem, the system model is transformed into an affine form so as the difficulty in controlling non-affine systems is overcome. In the proposed control design, neural networks (NNs) are used to approximate the unknown nonlinearities based on their universal approximation properties. To compensate for approximation errors and external disturbances, an adaptive robust control term is introduced. In comparison with existing approaches, the structure of the designed controller is considerably simpler, and can handle a wider range of nonlinear systems. The stability of the closed-loop system is investigated by using Lyapunov theory. The simulation results illustrate the proposed method.","PeriodicalId":38610,"journal":{"name":"International Journal of Systems, Control and Communications","volume":"11 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84270693","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 : 2020-03-18DOI: 10.1504/ijscc.2020.10027718
Omkar Singh, V. Rishiwal
Due to the tiny size, nodes in a wireless sensor network (WSN) are restricted in battery capacity. As a result, a node and in turn a network of such nodes is not operational for a long time. Further, in some hostile area, battery cannot be replaced easily once deployed. Therefore, an energy conservation scheme or algorithm is needed to prolong the network lifetime. In this paper, an energy efficient routing scheme (EERS) is proposed and evaluated. This scheme extends the lifetime of network by selecting the finest shortest path to transmit data packets to the destined nodes. EERS selects a path/quality link over which it has minimum number of hops with maximum remaining energy over that path. Proposed scheme EERS is compared with other existing schemes for different parameters and varying size of network (1001,000 nodes). The simulation results shows that the EERS scheme prolongs the network lifetime 10%-15% as compared to other considered schemes. EERS also minimises the delay for transmitting data packets and increases the packet delivery ratio.
{"title":"Scalable energy efficient routing mechanism prolonging network lifetime in wireless sensor networks","authors":"Omkar Singh, V. Rishiwal","doi":"10.1504/ijscc.2020.10027718","DOIUrl":"https://doi.org/10.1504/ijscc.2020.10027718","url":null,"abstract":"Due to the tiny size, nodes in a wireless sensor network (WSN) are restricted in battery capacity. As a result, a node and in turn a network of such nodes is not operational for a long time. Further, in some hostile area, battery cannot be replaced easily once deployed. Therefore, an energy conservation scheme or algorithm is needed to prolong the network lifetime. In this paper, an energy efficient routing scheme (EERS) is proposed and evaluated. This scheme extends the lifetime of network by selecting the finest shortest path to transmit data packets to the destined nodes. EERS selects a path/quality link over which it has minimum number of hops with maximum remaining energy over that path. Proposed scheme EERS is compared with other existing schemes for different parameters and varying size of network (1001,000 nodes). The simulation results shows that the EERS scheme prolongs the network lifetime 10%-15% as compared to other considered schemes. EERS also minimises the delay for transmitting data packets and increases the packet delivery ratio.","PeriodicalId":38610,"journal":{"name":"International Journal of Systems, Control and Communications","volume":"22 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86636889","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 : 2020-02-20DOI: 10.1504/ijscc.2020.10024427
Wesam M. Jasim, Dongbing Gu
In this work, a leader-follower formation control problem of quadrotors is investigated. The quadrotor dynamic model is represented by unit quaternion with the consideration of external disturbance. Nonlinear H∞ design approach is introduced and robust controllers for both leader and follower robots are derived by solving a Hamilton-Jacobi inequality following from a result for general nonlinear affine systems. Then some robustness conditions of the proposed controllers are obtained by selecting appropriate parametrised Lyapunov functions. The resultant state feedback controllers establish the asymptotically stability of the closed-loop nonlinear system. In addition, integral backstepping (IB) controllers are also derived for the leader-follower formation control problem. The purpose of designing IB controllers is to evaluate the robustness of H∞ controllers by comparison. The simulation results from both types of controllers are compared and robustness performance of the H∞ controllers over the IB controllers are demonstrated.
{"title":"Leader-Follower Formation Suboptimal Control for Quadrotors","authors":"Wesam M. Jasim, Dongbing Gu","doi":"10.1504/ijscc.2020.10024427","DOIUrl":"https://doi.org/10.1504/ijscc.2020.10024427","url":null,"abstract":"In this work, a leader-follower formation control problem of quadrotors is investigated. The quadrotor dynamic model is represented by unit quaternion with the consideration of external disturbance. Nonlinear H∞ design approach is introduced and robust controllers for both leader and follower robots are derived by solving a Hamilton-Jacobi inequality following from a result for general nonlinear affine systems. Then some robustness conditions of the proposed controllers are obtained by selecting appropriate parametrised Lyapunov functions. The resultant state feedback controllers establish the asymptotically stability of the closed-loop nonlinear system. In addition, integral backstepping (IB) controllers are also derived for the leader-follower formation control problem. The purpose of designing IB controllers is to evaluate the robustness of H∞ controllers by comparison. The simulation results from both types of controllers are compared and robustness performance of the H∞ controllers over the IB controllers are demonstrated.","PeriodicalId":38610,"journal":{"name":"International Journal of Systems, Control and Communications","volume":"136 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74693499","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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