J. Thriveni, K.R. Vishwanath, V. Jayashree, S. Neelima, B. M. Parinitha, K. Sneha, K. Shaila, K. Venugopal, L. Patnaik
A Wireless Ad hoc Network consists of mobile nodes with energy constrained batteries. In this paper, we have proposed an Optimized Lifetime Multicast Tree (OLMT) algorithm that constructs a minimum energy multicast tree resulting in minimum total transmission power consumption,thereby increasing the lifetime of the network. We observe that, simulations carried on NS2 provides significant improvement in the number of multicast requests realised when compared with earlier works.
{"title":"Optimized Multicast Routing for Improved Survivability of Mobile Ad Hoc Networks","authors":"J. Thriveni, K.R. Vishwanath, V. Jayashree, S. Neelima, B. M. Parinitha, K. Sneha, K. Shaila, K. Venugopal, L. Patnaik","doi":"10.1109/ICCEE.2008.100","DOIUrl":"https://doi.org/10.1109/ICCEE.2008.100","url":null,"abstract":"A Wireless Ad hoc Network consists of mobile nodes with energy constrained batteries. In this paper, we have proposed an Optimized Lifetime Multicast Tree (OLMT) algorithm that constructs a minimum energy multicast tree resulting in minimum total transmission power consumption,thereby increasing the lifetime of the network. We observe that, simulations carried on NS2 provides significant improvement in the number of multicast requests realised when compared with earlier works.","PeriodicalId":365473,"journal":{"name":"2008 International Conference on Computer and Electrical Engineering","volume":"57 ","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120884128","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}
In this paper, to cope with parametric uncertainties in the nonlinear dynamical model of a flexible robot arm a Lyapunov based adaptive nonlinear output feedback control strategy directly based on tip position and strain gauge measurements is investigated. Effectiveness and performance of the controller in vibration suppressing and fast motion duration tracking capability is shown through simulation.
{"title":"Adaptive Nonlinear Sensor Output Feedback Control of a Flexible Robot Arm","authors":"H. Bolandi, S. M. Esmaeilzadeh","doi":"10.1109/ICCEE.2008.122","DOIUrl":"https://doi.org/10.1109/ICCEE.2008.122","url":null,"abstract":"In this paper, to cope with parametric uncertainties in the nonlinear dynamical model of a flexible robot arm a Lyapunov based adaptive nonlinear output feedback control strategy directly based on tip position and strain gauge measurements is investigated. Effectiveness and performance of the controller in vibration suppressing and fast motion duration tracking capability is shown through simulation.","PeriodicalId":365473,"journal":{"name":"2008 International Conference on Computer and Electrical Engineering","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124041196","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}
This paper analyzes technological process of the main fractionator, and takes improvement of product quality as the control target. The control algorithm based on chain system is brought forward. Two major factors which affect quality of the crude gasoline endpoint are found out. It builds a chain system model that is made up of two related chains and designs the prediction algorithm and the chain control system for the crude gasoline endpoint of the main fractionator. The simulation indicates that the designed chain system model, not only enhances the quality control, but also achieves the purpose of smooth operation, the edge of control, and improves economic benefit of the FCCU.
{"title":"Quality Control of the Crude Gasoline Endpoint in Fractionator","authors":"Chen Tie-jun, Cui Dan-dan, Liu Wei, Li Liu-tao","doi":"10.1109/ICCEE.2008.54","DOIUrl":"https://doi.org/10.1109/ICCEE.2008.54","url":null,"abstract":"This paper analyzes technological process of the main fractionator, and takes improvement of product quality as the control target. The control algorithm based on chain system is brought forward. Two major factors which affect quality of the crude gasoline endpoint are found out. It builds a chain system model that is made up of two related chains and designs the prediction algorithm and the chain control system for the crude gasoline endpoint of the main fractionator. The simulation indicates that the designed chain system model, not only enhances the quality control, but also achieves the purpose of smooth operation, the edge of control, and improves economic benefit of the FCCU.","PeriodicalId":365473,"journal":{"name":"2008 International Conference on Computer and Electrical Engineering","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128725695","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}
This paper presents a new approach of steganography. The secret image is firstly perturbed by Stego-Key (SK) and again perturbed by a genetically generated, good, session based transposition operator (TO). In the next step this perturbed secret image is embedded within the host image by variable bit replacement using a hash function. At the time of extraction of secret image firstly perturbed image is extracted then by reverse engineering with the session based TO and SK the secret image is obtained.
{"title":"A Steganographic Approach by Using Session Based Stego-Key, Genetic Algorithm and Variable Bit Replacement Technique","authors":"T. Bhattacharya, S. Bhowmik, S. Chaudhuri","doi":"10.1109/ICCEE.2008.108","DOIUrl":"https://doi.org/10.1109/ICCEE.2008.108","url":null,"abstract":"This paper presents a new approach of steganography. The secret image is firstly perturbed by Stego-Key (SK) and again perturbed by a genetically generated, good, session based transposition operator (TO). In the next step this perturbed secret image is embedded within the host image by variable bit replacement using a hash function. At the time of extraction of secret image firstly perturbed image is extracted then by reverse engineering with the session based TO and SK the secret image is obtained.","PeriodicalId":365473,"journal":{"name":"2008 International Conference on Computer and Electrical Engineering","volume":"365 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114501361","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}
The problem of determining whether a set of periodic tasks can be assigned to a set of heterogeneous processors in such a way that all timing constraints are met has been shown, in general, to be NP-hard. This paper presents a modified algorithm based on the Particle Swarm Optimization (PSO) heuristic for solving this problem. The modified version is called Re-Excited PSO. Experimental results show that our approach outperform the major existing methods. In addition to being able to search for a feasible assignment solution, our PSO approach can further optimize the solution to reduce its energy consumption as well as to obtain good tradeoff between minimizing the design makespan as well as energy consumption.
{"title":"Task Assignment for Heterogeneous Multiprocessors Using Re-Excited Particle Swarm Optimization","authors":"Mohamed B. Abdelhalim","doi":"10.1109/ICCEE.2008.41","DOIUrl":"https://doi.org/10.1109/ICCEE.2008.41","url":null,"abstract":"The problem of determining whether a set of periodic tasks can be assigned to a set of heterogeneous processors in such a way that all timing constraints are met has been shown, in general, to be NP-hard. This paper presents a modified algorithm based on the Particle Swarm Optimization (PSO) heuristic for solving this problem. The modified version is called Re-Excited PSO. Experimental results show that our approach outperform the major existing methods. In addition to being able to search for a feasible assignment solution, our PSO approach can further optimize the solution to reduce its energy consumption as well as to obtain good tradeoff between minimizing the design makespan as well as energy consumption.","PeriodicalId":365473,"journal":{"name":"2008 International Conference on Computer and Electrical Engineering","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129701132","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}
Block matching has been widely used for block motion estimation; however most of the block matching algorithms impose heavy computational load to the system, and require much time for execution. This problem prevents using them in time critical applications. In this paper, a new approach to block matching technique is presented, which has small computational complexity as well as high accuracy. The main assumption of the algorithm is that, all the pixels of a block move equally by a linear motion. Experimental results show the feasibility and effectiveness of the proposed algorithm.
{"title":"A New Approach to Motion Vector Estimation","authors":"H. Ebrahimi, A. Nilchi, H. Vahdat-Nejad","doi":"10.1109/ICCEE.2008.177","DOIUrl":"https://doi.org/10.1109/ICCEE.2008.177","url":null,"abstract":"Block matching has been widely used for block motion estimation; however most of the block matching algorithms impose heavy computational load to the system, and require much time for execution. This problem prevents using them in time critical applications. In this paper, a new approach to block matching technique is presented, which has small computational complexity as well as high accuracy. The main assumption of the algorithm is that, all the pixels of a block move equally by a linear motion. Experimental results show the feasibility and effectiveness of the proposed algorithm.","PeriodicalId":365473,"journal":{"name":"2008 International Conference on Computer and Electrical Engineering","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126503659","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}
While IEEE 802.16 standardizes the PHY and MAC layers of wireless metropolitan area networks (MAN), optimal scheduling which is crucial in providing QoS, remains to be an open issue. In this paper, we propose an optimization based uplink scheduling algorithm which aims at maximizing the throughput while guaranteeing the negotiated QoS parameters for all connections. Unlike typical strict priority schedulers the proposed scheduler is able to satisfy the requirements of higher priority connections while not letting the lower priority connections to be neglected. Additionally, a parameter is defined to ensure fairness among rtPS connections. The scheduler's performance is then evaluated through simulations.
{"title":"An Optimization Based Uplink Scheduler for IEEE 802.16 Networks","authors":"L. Pishdad, H. Rabiee","doi":"10.1109/ICCEE.2008.135","DOIUrl":"https://doi.org/10.1109/ICCEE.2008.135","url":null,"abstract":"While IEEE 802.16 standardizes the PHY and MAC layers of wireless metropolitan area networks (MAN), optimal scheduling which is crucial in providing QoS, remains to be an open issue. In this paper, we propose an optimization based uplink scheduling algorithm which aims at maximizing the throughput while guaranteeing the negotiated QoS parameters for all connections. Unlike typical strict priority schedulers the proposed scheduler is able to satisfy the requirements of higher priority connections while not letting the lower priority connections to be neglected. Additionally, a parameter is defined to ensure fairness among rtPS connections. The scheduler's performance is then evaluated through simulations.","PeriodicalId":365473,"journal":{"name":"2008 International Conference on Computer and Electrical Engineering","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124177122","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}
Yang-hai Nan, D. Xuan, Jinwan Kim, Qian Ning, Youngbae Kim
In this paper, a control strategy of active suspension based on the fuzzy logic control has been investigated. Using incorporating feedback from force sensor at front and rear active suspension system, the control system shows the improvement of the dynamic responses of the vehicle. A multi degree-of-freedom nonlinear model is co-simulated by MATLAB/Simulink and ADAMS/car. The simulation results indicate that the proposed active suspension is very effective in the vibration isolation.
{"title":"Control of an Active Suspension Based on Fuzzy Logic","authors":"Yang-hai Nan, D. Xuan, Jinwan Kim, Qian Ning, Youngbae Kim","doi":"10.1109/ICCEE.2008.10","DOIUrl":"https://doi.org/10.1109/ICCEE.2008.10","url":null,"abstract":"In this paper, a control strategy of active suspension based on the fuzzy logic control has been investigated. Using incorporating feedback from force sensor at front and rear active suspension system, the control system shows the improvement of the dynamic responses of the vehicle. A multi degree-of-freedom nonlinear model is co-simulated by MATLAB/Simulink and ADAMS/car. The simulation results indicate that the proposed active suspension is very effective in the vibration isolation.","PeriodicalId":365473,"journal":{"name":"2008 International Conference on Computer and Electrical Engineering","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124404027","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}
A new extension recognition based on matter-element theory is presented, which can be used to solve the problem of recognition. The application of extension recognition of risks recognition in Internet banking shows its feasibility. In addition, the method enriches the theory of the intelligent disposal of contradiction problems.
{"title":"A Method of Extension Recognition of Risks Recognition in Internet Banking","authors":"Wang Chungang, Zeng Tao, Yu Yongquan","doi":"10.1109/ICCEE.2008.23","DOIUrl":"https://doi.org/10.1109/ICCEE.2008.23","url":null,"abstract":"A new extension recognition based on matter-element theory is presented, which can be used to solve the problem of recognition. The application of extension recognition of risks recognition in Internet banking shows its feasibility. In addition, the method enriches the theory of the intelligent disposal of contradiction problems.","PeriodicalId":365473,"journal":{"name":"2008 International Conference on Computer and Electrical Engineering","volume":"321 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124543693","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}
A novel computer graphics and computer aided geometric approach is used for machining a complicated shape workpiece and lettering on a 3D free surface or a plane by adopting a novel 3-DOF(Degree of Freedom) parallel robot. Based on the geometry constraint and dimension-driving technique, a 3-UPRR parallel simulation mechanism and its workspace are created. Then a 3D free surface and a guiding plane of tool path are constituted, and combined with the 3-UPRR parallel robot. Finally a novel 3-UPRR simulation parallel machine tool for machining a 3D free surface is created. By real-time controlling two driving dimension on the guiding plane, the process of machining complete. The simulation results are verified by the analytic results. The computer aided geometric variation approach has the advantages of simple and straightforward, without any need of compiling program.
{"title":"Computer Simulation for a Real-Time Process of Machining on a 3D Free Surface by Using a Spatial 3-UPRR Parallel Robot","authors":"Xu Jiayin, Lu Yi","doi":"10.1109/ICCEE.2008.51","DOIUrl":"https://doi.org/10.1109/ICCEE.2008.51","url":null,"abstract":"A novel computer graphics and computer aided geometric approach is used for machining a complicated shape workpiece and lettering on a 3D free surface or a plane by adopting a novel 3-DOF(Degree of Freedom) parallel robot. Based on the geometry constraint and dimension-driving technique, a 3-UPRR parallel simulation mechanism and its workspace are created. Then a 3D free surface and a guiding plane of tool path are constituted, and combined with the 3-UPRR parallel robot. Finally a novel 3-UPRR simulation parallel machine tool for machining a 3D free surface is created. By real-time controlling two driving dimension on the guiding plane, the process of machining complete. The simulation results are verified by the analytic results. The computer aided geometric variation approach has the advantages of simple and straightforward, without any need of compiling program.","PeriodicalId":365473,"journal":{"name":"2008 International Conference on Computer and Electrical Engineering","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127723992","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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