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2011 International Conference on Communications, Computing and Control Applications (CCCA)最新文献

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Optimized TDMA multi-frequency scheduling access protocols for sensor networks 传感器网络TDMA多频调度访问协议优化
2011 International Conference on Communications, Computing and Control Applications (CCCA) Pub Date : 2011-03-03 DOI: 10.1109/CCCA.2011.6031412
Salsabil Gherairi, Sofiane Ouni, F. Kamoun
{"title":"Optimized TDMA multi-frequency scheduling access protocols for sensor networks","authors":"Salsabil Gherairi, Sofiane Ouni, F. Kamoun","doi":"10.1109/CCCA.2011.6031412","DOIUrl":"https://doi.org/10.1109/CCCA.2011.6031412","url":null,"abstract":"In order to eliminate the interferences between neighbors and reduce the delay, with the respect of the real time constraint, we focus our work on the multi-frequency scheduling access protocols. In this paper, we review the most multi-frequency MAC protocols which deploy more than one frequency to transmit data to neighbors. After that, we propose an optimized TDMA multi-frequency scheduling access contribution for sensor networks which is based on three phases. In the first phase, we assign frequencies based on parent node reception in communication tree structure. The reduction of the number of frequencies is provided, in phase two, based on the principle of the graph coloring. Finally, in the last phase, we reduce frequencies to the maximum number of allowed frequencies with TDMA (Time Division) clustering principle. Our results are compared with the other works and have showed that our strategy can remove more interference between neighbors, optimize communication delay and adapt with the maximum number of frequencies in WSN (Wireless Sensor Networks).","PeriodicalId":259067,"journal":{"name":"2011 International Conference on Communications, Computing and Control Applications (CCCA)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130785171","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}
引用次数: 7
On a first order hold discretization for singular systems 奇异系统的一阶保持器离散化
2011 International Conference on Communications, Computing and Control Applications (CCCA) Pub Date : 2011-03-03 DOI: 10.1109/CCCA.2011.6031414
N. Karampetakis, Anastasia Gregoriadou
{"title":"On a first order hold discretization for singular systems","authors":"N. Karampetakis, Anastasia Gregoriadou","doi":"10.1109/CCCA.2011.6031414","DOIUrl":"https://doi.org/10.1109/CCCA.2011.6031414","url":null,"abstract":"This note proposes a new discretization method. The proposed sampled system is described in terms of the Markov parameters of the system and therefore the proposed method is easily implemented. The methodology we use is a first-order hold discretization for the input and first-order approximation of its derivatives.","PeriodicalId":259067,"journal":{"name":"2011 International Conference on Communications, Computing and Control Applications (CCCA)","volume":"118 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133697214","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}
引用次数: 3
Low-rank Gramian applications in dynamics and control 低阶Gramian在动力学和控制中的应用
2011 International Conference on Communications, Computing and Control Applications (CCCA) Pub Date : 2011-03-03 DOI: 10.1109/CCCA.2011.6031400
F. Freitas, J. Rommes, N. Martins
{"title":"Low-rank Gramian applications in dynamics and control","authors":"F. Freitas, J. Rommes, N. Martins","doi":"10.1109/CCCA.2011.6031400","DOIUrl":"https://doi.org/10.1109/CCCA.2011.6031400","url":null,"abstract":"This paper presents an efficient linear system reduction method that computes approximations to the controllability and observability Gramians of large sparse power system descriptor models. The method exploits the fact that a Lyapunov equation solution can be decomposed into low-rank Choleski factors, which are determined by the Alternating Direction Implicit (ADI) method. Advantages of the method are that it operates on the sparse descriptor matrices and does not require the computation of spectral projections onto deflating subspaces of finite eigenvalues, which are needed by other techniques applied to descriptor models. The Gramians, which are never explicitly formed, are used to compute reduced-order state-space models for large-scale systems. Extensions of the method's application to algebraic Riccati equation computation are also considered. Numerical results for small-signal stability power system descriptor models show that the method is efficient for large-scale systems reduced-order model (ROM) computation.","PeriodicalId":259067,"journal":{"name":"2011 International Conference on Communications, Computing and Control Applications (CCCA)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133116193","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}
引用次数: 2
Model Predictive Control of hybrid systems with discrete and continuous inputs 具有离散和连续输入的混合系统模型预测控制
2011 International Conference on Communications, Computing and Control Applications (CCCA) Pub Date : 2011-03-03 DOI: 10.1109/CCCA.2011.6031403
Y. Hammi, N. Zanzouri, M. Ksouri
{"title":"Model Predictive Control of hybrid systems with discrete and continuous inputs","authors":"Y. Hammi, N. Zanzouri, M. Ksouri","doi":"10.1109/CCCA.2011.6031403","DOIUrl":"https://doi.org/10.1109/CCCA.2011.6031403","url":null,"abstract":"This paper proposes and discusses a model predictive control approach to hybrid system, with discrete and continuous inputs. The hybrid model of two tank system is translated into mixed logical dynamical (MLD) form, which considering all constraints in the physical plant, such as maximum (flow in the pomp) and maximum level in the tank. The resultant system is well-posed for Model Predictive Control (MPC) that is used as control strategy for the system. Simulations are performed using the Hysdel compiler to illustrate the efficiently of this formalism and prove the influence of increasing the prediction horizon.","PeriodicalId":259067,"journal":{"name":"2011 International Conference on Communications, Computing and Control Applications (CCCA)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134632069","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}
引用次数: 2
PAPR reduction in OFDM systems using precoding with clipping 利用带裁剪的预编码降低OFDM系统的PAPR
2011 International Conference on Communications, Computing and Control Applications (CCCA) Pub Date : 2011-03-03 DOI: 10.1109/CCCA.2011.6031203
Hem Dutt Joshi, R. Saxena
{"title":"PAPR reduction in OFDM systems using precoding with clipping","authors":"Hem Dutt Joshi, R. Saxena","doi":"10.1109/CCCA.2011.6031203","DOIUrl":"https://doi.org/10.1109/CCCA.2011.6031203","url":null,"abstract":"A high peak-to-average power ratio (PAPR) is a major concern of an orthogonal frequency division multiplexing (OFDM) system. In this paper, a combination of pre-coding and clipping is used to reduce PAPR. This dual operation of pre-coding and clipping provides better PAPR than both conventional pre-coding and clipping method. With this technique, the PAPR can be reduced without increasing roll-off factor. The bit error rate (BER) has also been taken as performance evaluation parameter. Two pulse shapes namely square root raised cosine (SQRC) and better than raised cosine (BTRC) are also compared with the proposed technique to reduce PAPR.","PeriodicalId":259067,"journal":{"name":"2011 International Conference on Communications, Computing and Control Applications (CCCA)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115439586","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}
引用次数: 5
Structural analysis for air path of an automotive diesel engine 某型车用柴油机气路结构分析
2011 International Conference on Communications, Computing and Control Applications (CCCA) Pub Date : 2011-03-03 DOI: 10.1109/CCCA.2011.6031515
I. Djemili, A. Aitouche, V. Cocquempot
{"title":"Structural analysis for air path of an automotive diesel engine","authors":"I. Djemili, A. Aitouche, V. Cocquempot","doi":"10.1109/CCCA.2011.6031515","DOIUrl":"https://doi.org/10.1109/CCCA.2011.6031515","url":null,"abstract":"The paper focuses on the application of structural analysis based on mathematical model of air path of an automotive Diesel engine to realize the objective of fault detection and isolation. The model of the air path system was transformed into structural state equations in order to simplify the procedure of structural analysis. The paper is concerned on how to generate nonlinear analytical redundancy relations in view to study the monotorability of the system. The results show that all specified faults can be detected but some of therm can not be isolated.","PeriodicalId":259067,"journal":{"name":"2011 International Conference on Communications, Computing and Control Applications (CCCA)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114738643","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}
引用次数: 9
Discrimination between Arabic and Latin from bilingual documents 双语文献中阿拉伯语和拉丁语的区别
2011 International Conference on Communications, Computing and Control Applications (CCCA) Pub Date : 2011-03-03 DOI: 10.1109/CCCA.2011.6031496
Sofiene Haboubi, S. Maddouri, H. Amiri
{"title":"Discrimination between Arabic and Latin from bilingual documents","authors":"Sofiene Haboubi, S. Maddouri, H. Amiri","doi":"10.1109/CCCA.2011.6031496","DOIUrl":"https://doi.org/10.1109/CCCA.2011.6031496","url":null,"abstract":"An important task in machine learning is the electronic reading of documents. In this process, discrimination between languages is one of the first steps in the problem of automatic document text recognition. We are interested in the processing of mixed Arabic/Latin printed documents. Our method is based essentially on the extraction of words. We first extract structural features of words and then recognize the writing language. We finally present the results of our classification approach and discuss possible improvements.","PeriodicalId":259067,"journal":{"name":"2011 International Conference on Communications, Computing and Control Applications (CCCA)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123647752","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}
引用次数: 27
Distributed lifetime maximisation in wireless sensor networks using cooperation techniques 利用协作技术实现无线传感器网络的分布式寿命最大化
2011 International Conference on Communications, Computing and Control Applications (CCCA) Pub Date : 2011-03-03 DOI: 10.1109/CCCA.2011.6031471
O. Bilenne, S. Attia, Jörg Raisch
{"title":"Distributed lifetime maximisation in wireless sensor networks using cooperation techniques","authors":"O. Bilenne, S. Attia, Jörg Raisch","doi":"10.1109/CCCA.2011.6031471","DOIUrl":"https://doi.org/10.1109/CCCA.2011.6031471","url":null,"abstract":"This paper is concerned with the lifetime maximisation of wireless sensor networks (WSNs) in the context of slow-fading communication channels. The problem is first formulated as a decomposable convex optimisation problem. Dual decomposition is presented as a way to decompose the problem into smaller subproblems that can be solved locally by the nodes. Particular attention is paid to networks using cooperative communication techniques. As illustrative examples, formulations of the network lifetime maximisation problem are provided in the presence of (i) single-relay cooperation and (ii) broadcast-cooperative beamforming operations exploiting the spacial diversity of WSNs.","PeriodicalId":259067,"journal":{"name":"2011 International Conference on Communications, Computing and Control Applications (CCCA)","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122024764","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}
引用次数: 2
Causal approaches and fuzzy logic in FDI of Bond Graph uncertain parameters systems 键图不确定参数系统FDI的因果方法与模糊逻辑
2011 International Conference on Communications, Computing and Control Applications (CCCA) Pub Date : 2011-03-03 DOI: 10.1109/CCCA.2011.6031220
Walid Bouallegue, Salma Bouslama Bouabdallah, M. Tagina
{"title":"Causal approaches and fuzzy logic in FDI of Bond Graph uncertain parameters systems","authors":"Walid Bouallegue, Salma Bouslama Bouabdallah, M. Tagina","doi":"10.1109/CCCA.2011.6031220","DOIUrl":"https://doi.org/10.1109/CCCA.2011.6031220","url":null,"abstract":"In this paper, two isolation methods issued from FDI and AI approaches are compared. These methods are interested with bond graph (BG) modeled uncertain parameters systems. Residuals are generated from the Diagnostic Bond Graph (DBG). Detection is based on fuzzy logic approach and its different parameters are determined off-line. By exploiting the causal properties of the BG model, two isolation methods are proposed: Fault Signature Matrix (FSM) and causal paths covering of the causal graph. A simulation example is provided to show the performances of the proposed methods.","PeriodicalId":259067,"journal":{"name":"2011 International Conference on Communications, Computing and Control Applications (CCCA)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116809263","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}
引用次数: 8
Sensivity analysis of recovery rate of multi-products reverse logistic supply chain design 多产品逆向物流供应链设计回收率敏感性分析
2011 International Conference on Communications, Computing and Control Applications (CCCA) Pub Date : 2011-03-03 DOI: 10.1109/CCCA.2011.6031454
M. Bennekrouf, F. Boudahri, Z. Sari
{"title":"Sensivity analysis of recovery rate of multi-products reverse logistic supply chain design","authors":"M. Bennekrouf, F. Boudahri, Z. Sari","doi":"10.1109/CCCA.2011.6031454","DOIUrl":"https://doi.org/10.1109/CCCA.2011.6031454","url":null,"abstract":"In the recent years, the reverse logistic supply chain has taken an important part in manufacturing systems. Due to the pressures from both environmental awareness and business sustainability, several companies must work in collaboration to solve partially the problem of waste recovery. The purpose of this work is to help those companies who would like to pursue reverse logistics as axe of profit. In this paper, we describe a design of two levels reverse logistic supply chain for multiclass of products in pseudo dynamic approach by considering the uncertain quantity of collected products. The model is formulated in MIP and solved by using Lingo12 solver. Since the assumption of investment should be progressive, an analysis by scenario is used to regard the recovery rate. Also, the capacity of each remanufacturing center is discussed.","PeriodicalId":259067,"journal":{"name":"2011 International Conference on Communications, Computing and Control Applications (CCCA)","volume":"88 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116790910","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}
引用次数: 0
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