Pub Date : 2020-12-29DOI: 10.5013/ijssst.a.12.06.02
Akash K Singh
{"title":"Artificial Immune Systems Application in Power Grid and Security Architecture","authors":"Akash K Singh","doi":"10.5013/ijssst.a.12.06.02","DOIUrl":"https://doi.org/10.5013/ijssst.a.12.06.02","url":null,"abstract":"","PeriodicalId":14286,"journal":{"name":"International journal of simulation: systems, science & technology","volume":"79 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84152784","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 : 2020-12-29DOI: 10.5013/ijssst.a.12.06.03
C. Kotchasarn
In this paper, we present the performance analysis of multi-hop decode-and-forward (DF) cooperative communications under Rayleigh fading channel. The source, multiple relays and destination nodes are equipped with single antenna transceiver while the transmission channels are assumed to be mutually independent. A time-division channel allocation scheme is occupied in order to realize orthogonal channelization, therefore no inter-relay interference is considered in the system model. The compact derivation form of the end-to-end signal to noise ratio (SNR) probability density function (pdf) is analyzed. We also derived the symbol error rate (SER) of M-ary phase shift keying (MPSK) and outage probability under slow flat Rayleigh fading. Moreover, the expression of spectral efficiency over multihop DF is derived. In this work, we study the probability of SNR gain of multi-hop DF system over the single-hop system. The numerical results show that decreasing the threshold SNR and increasing the number of hops (N) yields lower the outage probability of the system. It is obvious that the performance of the multi-hop system with the improvement of the average BER is proportional to the number of hop. Finally, probability of SNR gain can be achieved by increasing number of hops.
{"title":"Performance Analysis of Multi-Hop Decode and Forward Cooperative Communications Under Rayleigh Fading Channel","authors":"C. Kotchasarn","doi":"10.5013/ijssst.a.12.06.03","DOIUrl":"https://doi.org/10.5013/ijssst.a.12.06.03","url":null,"abstract":"In this paper, we present the performance analysis of multi-hop decode-and-forward (DF) cooperative communications under Rayleigh fading channel. The source, multiple relays and destination nodes are equipped with single antenna transceiver while the transmission channels are assumed to be mutually independent. A time-division channel allocation scheme is occupied in order to realize orthogonal channelization, therefore no inter-relay interference is considered in the system model. The compact derivation form of the end-to-end signal to noise ratio (SNR) probability density function (pdf) is analyzed. We also derived the symbol error rate (SER) of M-ary phase shift keying (MPSK) and outage probability under slow flat Rayleigh fading. Moreover, the expression of spectral efficiency over multihop DF is derived. In this work, we study the probability of SNR gain of multi-hop DF system over the single-hop system. The numerical results show that decreasing the threshold SNR and increasing the number of hops (N) yields lower the outage probability of the system. It is obvious that the performance of the multi-hop system with the improvement of the average BER is proportional to the number of hop. Finally, probability of SNR gain can be achieved by increasing number of hops.","PeriodicalId":14286,"journal":{"name":"International journal of simulation: systems, science & technology","volume":"7 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78917588","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 : 2020-12-29DOI: 10.5013/ijssst.a.12.06.07
F. Hamidi, Samia Charfeddine, M. Abdelkrim
Stability of nonlinear systems is a problem of fundamental importance in system engineering. Specifically, the computation of a Lyapunov Function presents one of the tools enabling the study of the stability of nonlinear systems. The aim of this work is to study the Lyapunov approaches for polynomial systems. These approaches have been investigated in order to develop numerical algorithms based on the synthesis of Polynomial Lyapunov Functions. We proceed in two steps: Firstly, we implement a Threshold Accepting Algorithm technique to determine a candidate Lyapunov function. Secondly, we use an optimization strategy based on a Linear Matrix Inequality (LMI) to compute the Region of Attraction (RA). The parameters of the Lyapunov Function are computed by combining Threshold Accepting Algorithms (TAA) and LMI. The proposed approach yields a larger stability region for polynomial systems than an existing method does. Examples are given to illustrate the efficiency of the proposed approach.
{"title":"A New Approach to Searching Lyapunov Function Candidates for Autonomous Nonlinear Systems","authors":"F. Hamidi, Samia Charfeddine, M. Abdelkrim","doi":"10.5013/ijssst.a.12.06.07","DOIUrl":"https://doi.org/10.5013/ijssst.a.12.06.07","url":null,"abstract":"Stability of nonlinear systems is a problem of fundamental importance in system engineering. Specifically, the computation of a Lyapunov Function presents one of the tools enabling the study of the stability of nonlinear systems. The aim of this work is to study the Lyapunov approaches for polynomial systems. These approaches have been investigated in order to develop numerical algorithms based on the synthesis of Polynomial Lyapunov Functions. We proceed in two steps: Firstly, we implement a Threshold Accepting Algorithm technique to determine a candidate Lyapunov function. Secondly, we use an optimization strategy based on a Linear Matrix Inequality (LMI) to compute the Region of Attraction (RA). The parameters of the Lyapunov Function are computed by combining Threshold Accepting Algorithms (TAA) and LMI. The proposed approach yields a larger stability region for polynomial systems than an existing method does. Examples are given to illustrate the efficiency of the proposed approach.","PeriodicalId":14286,"journal":{"name":"International journal of simulation: systems, science & technology","volume":"70 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84094948","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 : 2020-12-29DOI: 10.5013/ijssst.a.12.06.04
Shabnam Armaghan, A. Moridi, A. Sedigh
In this paper the use of proportional-integralderivative (PID) switching controllers is proposed for the control of a magnetically actuated mass-spring-damper system which is composed of two masses M1 and M2; each mass is jointed to its own spring. Two different modes occur during the system motion; a PID controller is designed for each mode and a switching logic is applied in order to recognize the system's position to switch to the proper controller. Finally, simulation results are employed to show the performance of the proposed switched PID controller. Also, comparison results with the previously used model predictive controller (MPC) are provided.
{"title":"Design of a Switching PID Controller for a Magnetically Actuated Mass Spring Damper","authors":"Shabnam Armaghan, A. Moridi, A. Sedigh","doi":"10.5013/ijssst.a.12.06.04","DOIUrl":"https://doi.org/10.5013/ijssst.a.12.06.04","url":null,"abstract":"In this paper the use of proportional-integralderivative (PID) switching controllers is proposed for the control of a magnetically actuated mass-spring-damper system which is composed of two masses M1 and M2; each mass is jointed to its own spring. Two different modes occur during the system motion; a PID controller is designed for each mode and a switching logic is applied in order to recognize the system's position to switch to the proper controller. Finally, simulation results are employed to show the performance of the proposed switched PID controller. Also, comparison results with the previously used model predictive controller (MPC) are provided.","PeriodicalId":14286,"journal":{"name":"International journal of simulation: systems, science & technology","volume":"33 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81187676","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 : 2020-12-29DOI: 10.5013/ijssst.a.12.06.05
Naghmeh Esmaily, M. Jafari, Mehran Mohsen Zadeh
Real time data grids are some type of data grids in which the jobs should be done within a definite time period. If this period takes a longer time, the programs will not possibly be executed within the specified time period. Data replication issue is brought up as a procedure for prompt access to data and execution of programs within the specified deadline in the grids. In data replication, the parameters under assessment for replication, selection of the file to be replicated, number of replications and the location of new copies are important challenges that should be addressed. In this paper, dynamic replication algorithm of a new data called Distributed Date Replication (DDR) is introduced that improves the mentioned challenges and meets real time data by distributed decision for replication in three levels. Simulation results showed that the average time for executing the jobs and server traffic in DDR algorithm decreased as compared to other algorithms and less jobs failed.
{"title":"Presentation of Multi Level Data Replication Distributed Decision Making Strategy for High Priority Tasks in Real Time Data Grids","authors":"Naghmeh Esmaily, M. Jafari, Mehran Mohsen Zadeh","doi":"10.5013/ijssst.a.12.06.05","DOIUrl":"https://doi.org/10.5013/ijssst.a.12.06.05","url":null,"abstract":"Real time data grids are some type of data grids in which the jobs should be done within a definite time period. If this period takes a longer time, the programs will not possibly be executed within the specified time period. Data replication issue is brought up as a procedure for prompt access to data and execution of programs within the specified deadline in the grids. In data replication, the parameters under assessment for replication, selection of the file to be replicated, number of replications and the location of new copies are important challenges that should be addressed. In this paper, dynamic replication algorithm of a new data called Distributed Date Replication (DDR) is introduced that improves the mentioned challenges and meets real time data by distributed decision for replication in three levels. Simulation results showed that the average time for executing the jobs and server traffic in DDR algorithm decreased as compared to other algorithms and less jobs failed.","PeriodicalId":14286,"journal":{"name":"International journal of simulation: systems, science & technology","volume":"99 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85779643","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 : 2020-10-30DOI: 10.5013/ijssst.a.17.33.01
A. Tashtoush
Thus far, the high intensity focused ultrasound technique has no side effects; therefore, it has become the superior method compared to conventional methods due to its safety, accessibility, efficiency and precision. The high intensity focused ultrasound (HIFU) technique is powerful and able to treat vascular diseases like atherosclerosis compared to other method of treatments such as medication and surgery treatment. The HIFU technique will contribute greatly to the reduction and elimination of these diseases and is easily treatable. The HIFU technique will be used in various therapeutic and clinical applications. Treatment of prostate tumor, breast tumor, uterine fibroids, liver tumor, renal tumor, and pancreatic cancer has become noninvasively ablated. The main function of the HIFU technique is to maximize energy-accumulation at the target area in order to induce significant biological reactions without causing harm to the intervening tissues such as the skin and the tissues surrounding the target area. The HIFU technique is an approach that can produce various biological effects to treat the target tissue using thermal/ mechanical mechanism interactions.
{"title":"High Intensity Focused Ultrasound (HIFU) Technique for Ablation Various Disease Treatments Guided by Ultrasound","authors":"A. Tashtoush","doi":"10.5013/ijssst.a.17.33.01","DOIUrl":"https://doi.org/10.5013/ijssst.a.17.33.01","url":null,"abstract":"Thus far, the high intensity focused ultrasound technique has no side effects; therefore, it has become the superior method compared to conventional methods due to its safety, accessibility, efficiency and precision. The high intensity focused ultrasound (HIFU) technique is powerful and able to treat vascular diseases like atherosclerosis compared to other method of treatments such as medication and surgery treatment. The HIFU technique will contribute greatly to the reduction and elimination of these diseases and is easily treatable. The HIFU technique will be used in various therapeutic and clinical applications. Treatment of prostate tumor, breast tumor, uterine fibroids, liver tumor, renal tumor, and pancreatic cancer has become noninvasively ablated. The main function of the HIFU technique is to maximize energy-accumulation at the target area in order to induce significant biological reactions without causing harm to the intervening tissues such as the skin and the tissues surrounding the target area. The HIFU technique is an approach that can produce various biological effects to treat the target tissue using thermal/ mechanical mechanism interactions.","PeriodicalId":14286,"journal":{"name":"International journal of simulation: systems, science & technology","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88548895","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 : 2020-10-30DOI: 10.5013/IJSSST.A.17.38.32
Yanxin Yan
Dynamic frame slotted ALOHA (DFSA) has been widely adopted to reduce tag collisions in Ultra High Frequency (UHF) radio frequency identification (RFID) system. In the existing DFSA algorithms, the reader needs to accurately estimate tag backlog and set a new frame length which is equal to the backlog to close to the theoretical maximum throughput 36.8% of the framed ALOHA. To overcome throughput limitation and improve the identification efficiency, we propose an efficient slot-hopped algorithm based on ALOHA protocol. The slot-hopped mechanism was used in each frame to skip collision and idle slots. Accordingly, the scheme significantly reduces collision and idle slots. The performance analysis and simulation results show that the proposed algorithm outperforms other ALOHA-based protocols .
{"title":"A Method to Improve Identification Performance of UHF RFID Systems","authors":"Yanxin Yan","doi":"10.5013/IJSSST.A.17.38.32","DOIUrl":"https://doi.org/10.5013/IJSSST.A.17.38.32","url":null,"abstract":"Dynamic frame slotted ALOHA (DFSA) has been widely adopted to reduce tag collisions in Ultra High Frequency (UHF) radio frequency identification (RFID) system. In the existing DFSA algorithms, the reader needs to accurately estimate tag backlog and set a new frame length which is equal to the backlog to close to the theoretical maximum throughput 36.8% of the framed ALOHA. To overcome throughput limitation and improve the identification efficiency, we propose an efficient slot-hopped algorithm based on ALOHA protocol. The slot-hopped mechanism was used in each frame to skip collision and idle slots. Accordingly, the scheme significantly reduces collision and idle slots. The performance analysis and simulation results show that the proposed algorithm outperforms other ALOHA-based protocols .","PeriodicalId":14286,"journal":{"name":"International journal of simulation: systems, science & technology","volume":"30 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78235669","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 : 2020-08-30DOI: 10.5013/ijssst.a.15.04.07
R. Munadi, Asep Mulyana, I. Santoso
{"title":"Experimental Evaluation and Analysis of Delay Handover in VoIP on Campus Network","authors":"R. Munadi, Asep Mulyana, I. Santoso","doi":"10.5013/ijssst.a.15.04.07","DOIUrl":"https://doi.org/10.5013/ijssst.a.15.04.07","url":null,"abstract":"","PeriodicalId":14286,"journal":{"name":"International journal of simulation: systems, science & technology","volume":"32 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85090127","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 : 2020-06-29DOI: 10.5013/ijssst.a.16.3b.03
Gue Jiang
{"title":"Research on the Evaluation System of the Balanced Development of Physical Education in China","authors":"Gue Jiang","doi":"10.5013/ijssst.a.16.3b.03","DOIUrl":"https://doi.org/10.5013/ijssst.a.16.3b.03","url":null,"abstract":"","PeriodicalId":14286,"journal":{"name":"International journal of simulation: systems, science & technology","volume":"58 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75073176","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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