The Experts below are selected from a list of 58080 Experts worldwide ranked by ideXlab platform
Kaouther Abrougui - One of the best experts on this subject based on the ideXlab platform.
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efficient group Based authentication protocol for Location Based Service discovery in intelligent transportation systems
Security and Communication Networks, 2013Co-Authors: Kaouther Abrougui, Azzedine BoukercheAbstract:Intelligent transportation systems have attracted many researchers. These latter have invested much effort to develop many applications and Services mainly for vehicular systems. Services can be classified as safety or convenience Services. A Service discovery mechanism is needed to permit the discovery and the interaction with the existing Services. However, so far security issues for Service discovery in vehicular systems have not been widely considered, mainly for the convenience type of applications. Thus, a secure Service discovery and communication protocol is necessary to prevent from many attacks and malicious processes in the vehicular system. In this paper, we investigate the possible attacks that can occur during the Service discovery and communication processes. Then, we present our proposed group-Based authentication scheme for secure Service discovery and communication in vehicular systems. Our proposed scheme is mainly dedicated for the convenience type of applications. We discuss the security requirements achieved by our proposed protocol and we report on its performance evaluation. We prove through our extensive set of simulations that our proposed scheme achieves a high success rate for the secure discovery of Services, while maintaining the scalability of the network and low discovery delays. Copyright © 2013 John Wiley & Sons, Ltd.
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performance evaluation of an efficient fault tolerant Service discovery protocol for vehicular networks
Journal of Network and Computer Applications, 2012Co-Authors: Kaouther Abrougui, Azzedine Boukerche, Hussam Soliman M RamadanAbstract:Recently, vehicular networks and inter-vehicle communication have received attention from the research community and the automotive industry. In this context, many Services are deployed in vehicular networks that are beneficial to drivers and passengers. Service discovery in vehicular networks is vital to make such Services useful. However, due to the lack of communication reliability in vehicular ad hoc networks, it is necessary to implement fault-tolerant techniques during the discovery of Service providers in vehicular networks. Very few Service discovery protocols for vehicular networks have considered fault tolerant techniques, which are very important for the efficiency of Service discovery. Fault tolerant techniques improve Service request satisfaction and reduce dropped connections due to faulty components between the Service provider and the Service requester. In this paper, we propose a fault tolerant Location Based Service discovery protocol for vehicular networks which can work well under Service provider failures, communication link failures and roadside router failures. Our protocol permits the discovery of Location Based Services where the requester specifies the region of interest within the request. Our protocol uses an infrastructure support consisting of clusters of roadside routers formed in specific regions in the vehicular network. In addition, Service discovery messages are integrated into the network layer and use channel diversity in order to improve Service discovery efficiency. We describe our fault tolerant Location Based vehicular Service discovery protocol (FTLocVSDP) and discuss its proof of correctness and performance evaluation. We prove that the success rate is improved in the roadside router failure and in the communication link failure scenarios by 50% and 30%, respectively, compared to the Location Based Service discovery protocol for vehicular networks (LocVSDP) which does not consider fault tolerant techniques.
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design and evaluation of context aware and Location Based Service discovery protocols for vehicular networks
IEEE Transactions on Intelligent Transportation Systems, 2011Co-Authors: Kaouther Abrougui, Azzedine Boukerche, Richard W PazziAbstract:The increasing number of potential applications related to intelligent transportation systems (ITSs) have attracted researchers to the area of vehicular networks (VNs). Two main classes of applications have lately gained popularity, i.e., security and safety, and traffic information and Service Location applications. However, several open research challenges are delaying the efficient and widespread deployment and management of such applications in VNs. One of these challenges comprises how vehicles and Service providers could discover each other in VNs, which are well known for their large scale and high mobility. Most Service discovery strategies available present high overhead and poor performance in a VN environment. Existing context-aware and Location-Based Service discovery protocols (LocVSDPs) are either designed without considering the particularities of VNs or are not scalable with the increase in network density and the number of requests. In this paper, we propose a new context-aware and LocVSDP (EB-LocVSDP) for VNs and its variant (Naive-LocVSDP). Our protocols offer a scalable framework for the discovery of time-sensitive and Location-Based Services in VNs. They rely on a cluster-Based infrastructure. Furthermore, LocVSDPs are integrated into the network layer and use channel diversity to improve Service discovery efficiency. We discuss the implementation of our protocols and techniques, report on performance evaluation experiments, and offer a comparison against an existing Location-Based discovery protocol [the Vehicular Information Transfer Protocol (VITP)]. Our simulation results indicate that our proposed LocVSDPs show a gain of 20% in terms of success rate. LocVSDPs use at least 90% less bandwidth than VITP, and their average response time is at least 10% lower than VITP for successful query transactions.
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design and performance evaluation of qos aware and Location Based Service discovery protocol for vehicular networks
Modeling Analysis and Simulation of Wireless and Mobile Systems, 2010Co-Authors: Kaouther Abrougui, Azzedine Boukerche, Samer SamarahAbstract:Recently, we have witnessed a growing interest in the study of Service discovery in vehicular networks that guarantee QoS to Service requesters. To the best of our knowledge, none of the existing Service discovery protocols in Vehicular Networks have been provided in the literature that guarantee QoS to Service requesters nd to the Vehicular Network. For efficient Service discovery in vehicular networks, it is very important to provide users with Services that suit better to their requests while balancing the load on Service providers. Moreover, for Service discovery protocol integrated with routing protocols, it is important to guarantee load balancing on routing paths between Service providers and Service requesters. In this paper, we present a QoS aware Location Based Service discovery protocol for Vehicular Networks. Our protocol guarantees load balancing on Service providers, and routing paths between Service providers and Service requesters. It permits also to choose Service providers and routing paths between Service providers and Service requesters that satisfy some performance attributes specified by Service requesters. We present our QoS aware protocol, report on its performance evaluation, and discuss our experimental results we have obtained using realistic scenarios.1
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context aware and Location Based Service discovery protocol for vehicular networks
Performance Evaluation of Wireless Ad Hoc Sensor and Ubiquitous Networks, 2009Co-Authors: Azzedine Boukerche, Kaouther Abrougui, Richard W PazziAbstract:Vehicular Networks (VN) have attracted recent attention from researchers mainly motivated by the potential applications that will leverage Intelligent Transportation Systems (ITS). Such applications include road safety and security, traffic monitoring and driving comfort. However, several research challenges must be overcome before Vehicular Networks can be wide deployed. One of these challenges comprises how vehicles and Service providers could discover each other in a Vehicular Networks, which is well-known for its large scale and high-mobility nature. Therefore, existing Service discovery techniques for low-mobility or wired networks cannot be applied directly to Vehicular Networks. Most Service discovery strategies available present high overhead and poor performance in a Vehicular Network scenario. In this paper, we propose a context-aware and Location-Based Service discovery protocol for next generation Vehicular Networks (LocVSDP). Our protocol offers a scalable framework for the discovery of time-sensitive and Location Based Services in Vehicular Networks. Furthermore, LocVSDP is integrated into the network layer and uses channel diversity for improved Service discovery efficiency. We discuss the implementation of our protocol and compare the message and time complexities of our protocol with the existing Location-Based Service discovery protocol VITP. Our results indicate that our techniques outperform the VITP protocol in terms of message and time complexities.
Putra, Tri Dharma - One of the best experts on this subject based on the ideXlab platform.
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Metode Location Based Service Dalam Mengurangi Resiko Tersesat Saat Pendakian Gunung Menggunakan Global Positioning System (GPS)
'Universitas Bhayangkara Jakarta Raya', 2020Co-Authors: Nugroho, Danan Rifandi, Ramdhani Asep, Putra, Tri DharmaAbstract:Abstract Climbing in Indonesia from year to year has increased the demand. More and more climbers are interested in this activity but increasingly also accidents that occur in the mountain due to lack of knowledge and discipline of climbers. The mountaineering guide app is made to help climbers to plan preparations before climbing and while climbing the mountains, this app also features a mountain position layout and path from basecamp, climbing posts to the top, and can request evacuation requests at TimSAR. By using the technology of Global Positioning System and Location Based Service climbers can easily find the point where it is located, and can minimize accidents and even death that can occur in the mountain. Keywords: Mountaineer, Location Based Service, Global Positioning System, Mountain Climbing Guide. Abstrak Pendakian di Indonesia dari tahun ke tahun mengalami peningkatan peminatnya. Semakin banyak pendaki yang meminati kegiatan ini tetapi semakin bertambah pula kecelakaan yang terjadi di gunung akibat kurangnya pengetahuan dan kedisiplinan pendaki. Aplikasi panduan mendaki gunung dibuat untuk membantu para pendaki untuk merencanakan persiapan sebelum mendaki dan saat mendaki gunung, aplikasi ini juga dilengkapi dengan tata letak posisi gunung dan jalur dari basecamp, pos-pos pendakian sampai ke puncak, dan dapat meminta permintaan evakuasi pada TimSAR. Dengan menggunakan teknologi Global Positioning System dan Location Based Service pendaki dapat dengan mudah mencari titik posisinya berada, dan dapat meminimalisir kecelakaan bahkan kematian yang dapat terjadi di gunung. Kata kunci: Pendaki Gunung, Location Based Service, Global Positioning System, Panduan Mendaki Gunung.
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Metode Location Based Service Dalam Mengurangi Resiko Tersesat Saat Pendakian Gunung Menggunakan Global Positioning System (GPS)
Journal of Information and Information Security (JIFORTY) Universitas Bhayangkara Jaya, 2020Co-Authors: Putra, Tri DharmaAbstract:Climbing in Indonesia from year to year has increased the demand. More and more climbers are interested in this activity but increasingly also accidents that occur in the mountain due to lack of knowledge and discipline of climbers. The mountaineering guide app is made to help climbers to plan preparations before climbing and while climbing the mountains, this app also features a mountain position layout and path from basecamp, climbing posts to the top, and can request evacuation requests at TimSAR. By using the technology of Global Positioning System and Location Based Service climbers can easily find the point where it is located, and can minimize accidents and even death that can occur in the mountain. Keywords: Mountaineer, Location Based Service, Global Positioning System, Mountain Climbing Guide
Azzedine Boukerche - One of the best experts on this subject based on the ideXlab platform.
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efficient group Based authentication protocol for Location Based Service discovery in intelligent transportation systems
Security and Communication Networks, 2013Co-Authors: Kaouther Abrougui, Azzedine BoukercheAbstract:Intelligent transportation systems have attracted many researchers. These latter have invested much effort to develop many applications and Services mainly for vehicular systems. Services can be classified as safety or convenience Services. A Service discovery mechanism is needed to permit the discovery and the interaction with the existing Services. However, so far security issues for Service discovery in vehicular systems have not been widely considered, mainly for the convenience type of applications. Thus, a secure Service discovery and communication protocol is necessary to prevent from many attacks and malicious processes in the vehicular system. In this paper, we investigate the possible attacks that can occur during the Service discovery and communication processes. Then, we present our proposed group-Based authentication scheme for secure Service discovery and communication in vehicular systems. Our proposed scheme is mainly dedicated for the convenience type of applications. We discuss the security requirements achieved by our proposed protocol and we report on its performance evaluation. We prove through our extensive set of simulations that our proposed scheme achieves a high success rate for the secure discovery of Services, while maintaining the scalability of the network and low discovery delays. Copyright © 2013 John Wiley & Sons, Ltd.
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performance evaluation of an efficient fault tolerant Service discovery protocol for vehicular networks
Journal of Network and Computer Applications, 2012Co-Authors: Kaouther Abrougui, Azzedine Boukerche, Hussam Soliman M RamadanAbstract:Recently, vehicular networks and inter-vehicle communication have received attention from the research community and the automotive industry. In this context, many Services are deployed in vehicular networks that are beneficial to drivers and passengers. Service discovery in vehicular networks is vital to make such Services useful. However, due to the lack of communication reliability in vehicular ad hoc networks, it is necessary to implement fault-tolerant techniques during the discovery of Service providers in vehicular networks. Very few Service discovery protocols for vehicular networks have considered fault tolerant techniques, which are very important for the efficiency of Service discovery. Fault tolerant techniques improve Service request satisfaction and reduce dropped connections due to faulty components between the Service provider and the Service requester. In this paper, we propose a fault tolerant Location Based Service discovery protocol for vehicular networks which can work well under Service provider failures, communication link failures and roadside router failures. Our protocol permits the discovery of Location Based Services where the requester specifies the region of interest within the request. Our protocol uses an infrastructure support consisting of clusters of roadside routers formed in specific regions in the vehicular network. In addition, Service discovery messages are integrated into the network layer and use channel diversity in order to improve Service discovery efficiency. We describe our fault tolerant Location Based vehicular Service discovery protocol (FTLocVSDP) and discuss its proof of correctness and performance evaluation. We prove that the success rate is improved in the roadside router failure and in the communication link failure scenarios by 50% and 30%, respectively, compared to the Location Based Service discovery protocol for vehicular networks (LocVSDP) which does not consider fault tolerant techniques.
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design and evaluation of context aware and Location Based Service discovery protocols for vehicular networks
IEEE Transactions on Intelligent Transportation Systems, 2011Co-Authors: Kaouther Abrougui, Azzedine Boukerche, Richard W PazziAbstract:The increasing number of potential applications related to intelligent transportation systems (ITSs) have attracted researchers to the area of vehicular networks (VNs). Two main classes of applications have lately gained popularity, i.e., security and safety, and traffic information and Service Location applications. However, several open research challenges are delaying the efficient and widespread deployment and management of such applications in VNs. One of these challenges comprises how vehicles and Service providers could discover each other in VNs, which are well known for their large scale and high mobility. Most Service discovery strategies available present high overhead and poor performance in a VN environment. Existing context-aware and Location-Based Service discovery protocols (LocVSDPs) are either designed without considering the particularities of VNs or are not scalable with the increase in network density and the number of requests. In this paper, we propose a new context-aware and LocVSDP (EB-LocVSDP) for VNs and its variant (Naive-LocVSDP). Our protocols offer a scalable framework for the discovery of time-sensitive and Location-Based Services in VNs. They rely on a cluster-Based infrastructure. Furthermore, LocVSDPs are integrated into the network layer and use channel diversity to improve Service discovery efficiency. We discuss the implementation of our protocols and techniques, report on performance evaluation experiments, and offer a comparison against an existing Location-Based discovery protocol [the Vehicular Information Transfer Protocol (VITP)]. Our simulation results indicate that our proposed LocVSDPs show a gain of 20% in terms of success rate. LocVSDPs use at least 90% less bandwidth than VITP, and their average response time is at least 10% lower than VITP for successful query transactions.
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design and performance evaluation of qos aware and Location Based Service discovery protocol for vehicular networks
Modeling Analysis and Simulation of Wireless and Mobile Systems, 2010Co-Authors: Kaouther Abrougui, Azzedine Boukerche, Samer SamarahAbstract:Recently, we have witnessed a growing interest in the study of Service discovery in vehicular networks that guarantee QoS to Service requesters. To the best of our knowledge, none of the existing Service discovery protocols in Vehicular Networks have been provided in the literature that guarantee QoS to Service requesters nd to the Vehicular Network. For efficient Service discovery in vehicular networks, it is very important to provide users with Services that suit better to their requests while balancing the load on Service providers. Moreover, for Service discovery protocol integrated with routing protocols, it is important to guarantee load balancing on routing paths between Service providers and Service requesters. In this paper, we present a QoS aware Location Based Service discovery protocol for Vehicular Networks. Our protocol guarantees load balancing on Service providers, and routing paths between Service providers and Service requesters. It permits also to choose Service providers and routing paths between Service providers and Service requesters that satisfy some performance attributes specified by Service requesters. We present our QoS aware protocol, report on its performance evaluation, and discuss our experimental results we have obtained using realistic scenarios.1
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context aware and Location Based Service discovery protocol for vehicular networks
Performance Evaluation of Wireless Ad Hoc Sensor and Ubiquitous Networks, 2009Co-Authors: Azzedine Boukerche, Kaouther Abrougui, Richard W PazziAbstract:Vehicular Networks (VN) have attracted recent attention from researchers mainly motivated by the potential applications that will leverage Intelligent Transportation Systems (ITS). Such applications include road safety and security, traffic monitoring and driving comfort. However, several research challenges must be overcome before Vehicular Networks can be wide deployed. One of these challenges comprises how vehicles and Service providers could discover each other in a Vehicular Networks, which is well-known for its large scale and high-mobility nature. Therefore, existing Service discovery techniques for low-mobility or wired networks cannot be applied directly to Vehicular Networks. Most Service discovery strategies available present high overhead and poor performance in a Vehicular Network scenario. In this paper, we propose a context-aware and Location-Based Service discovery protocol for next generation Vehicular Networks (LocVSDP). Our protocol offers a scalable framework for the discovery of time-sensitive and Location Based Services in Vehicular Networks. Furthermore, LocVSDP is integrated into the network layer and uses channel diversity for improved Service discovery efficiency. We discuss the implementation of our protocol and compare the message and time complexities of our protocol with the existing Location-Based Service discovery protocol VITP. Our results indicate that our techniques outperform the VITP protocol in terms of message and time complexities.
Richard W Pazzi - One of the best experts on this subject based on the ideXlab platform.
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design and evaluation of context aware and Location Based Service discovery protocols for vehicular networks
IEEE Transactions on Intelligent Transportation Systems, 2011Co-Authors: Kaouther Abrougui, Azzedine Boukerche, Richard W PazziAbstract:The increasing number of potential applications related to intelligent transportation systems (ITSs) have attracted researchers to the area of vehicular networks (VNs). Two main classes of applications have lately gained popularity, i.e., security and safety, and traffic information and Service Location applications. However, several open research challenges are delaying the efficient and widespread deployment and management of such applications in VNs. One of these challenges comprises how vehicles and Service providers could discover each other in VNs, which are well known for their large scale and high mobility. Most Service discovery strategies available present high overhead and poor performance in a VN environment. Existing context-aware and Location-Based Service discovery protocols (LocVSDPs) are either designed without considering the particularities of VNs or are not scalable with the increase in network density and the number of requests. In this paper, we propose a new context-aware and LocVSDP (EB-LocVSDP) for VNs and its variant (Naive-LocVSDP). Our protocols offer a scalable framework for the discovery of time-sensitive and Location-Based Services in VNs. They rely on a cluster-Based infrastructure. Furthermore, LocVSDPs are integrated into the network layer and use channel diversity to improve Service discovery efficiency. We discuss the implementation of our protocols and techniques, report on performance evaluation experiments, and offer a comparison against an existing Location-Based discovery protocol [the Vehicular Information Transfer Protocol (VITP)]. Our simulation results indicate that our proposed LocVSDPs show a gain of 20% in terms of success rate. LocVSDPs use at least 90% less bandwidth than VITP, and their average response time is at least 10% lower than VITP for successful query transactions.
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context aware and Location Based Service discovery protocol for vehicular networks
Performance Evaluation of Wireless Ad Hoc Sensor and Ubiquitous Networks, 2009Co-Authors: Azzedine Boukerche, Kaouther Abrougui, Richard W PazziAbstract:Vehicular Networks (VN) have attracted recent attention from researchers mainly motivated by the potential applications that will leverage Intelligent Transportation Systems (ITS). Such applications include road safety and security, traffic monitoring and driving comfort. However, several research challenges must be overcome before Vehicular Networks can be wide deployed. One of these challenges comprises how vehicles and Service providers could discover each other in a Vehicular Networks, which is well-known for its large scale and high-mobility nature. Therefore, existing Service discovery techniques for low-mobility or wired networks cannot be applied directly to Vehicular Networks. Most Service discovery strategies available present high overhead and poor performance in a Vehicular Network scenario. In this paper, we propose a context-aware and Location-Based Service discovery protocol for next generation Vehicular Networks (LocVSDP). Our protocol offers a scalable framework for the discovery of time-sensitive and Location Based Services in Vehicular Networks. Furthermore, LocVSDP is integrated into the network layer and uses channel diversity for improved Service discovery efficiency. We discuss the implementation of our protocol and compare the message and time complexities of our protocol with the existing Location-Based Service discovery protocol VITP. Our results indicate that our techniques outperform the VITP protocol in terms of message and time complexities.
Pedro Álvarez - One of the best experts on this subject based on the ideXlab platform.
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an architectural pattern to extend the interaction model between web Services the Location Based Service context
International Conference on Service Oriented Computing, 2003Co-Authors: Pedro Álvarez, José Ángel Bañares, Pedro R MuromedranoAbstract:Internet has succeeded as a global information system mainly because of its availability and openness, and the simplicity of its standards and protocols. However, the current use of Internet as universal middleware has clearly shown the lack of maturity of Web technology to support distributed applications, which involve communication, cooperation, and coordination. This paper proposes an architectural solution to solve these interaction restrictions. It is Based on an extension of the Service-oriented architectures, adding a new coordinator role that allows more flexible relationships between Service providers and requestors than the provided by the client/server model. This role is inspired by the Blackboard architectural pattern and it is the conceptual basis of a Web-Coordination Service able to coordinate distributed and heterogeneous applications through Internet. To prove the effectiveness of this proposal, the Web-Coordination Service has been used in an highly dynamic and collaborative application context, the Location-Based Services.
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A Java coordination tool for Web-Service architectures: The Location-Based Service context
Lecture Notes in Computer Science, 2003Co-Authors: Pedro Álvarez, José Ángel Bañares, Pedro R. Muro-medrano, J. Nogueras, F. J. ZarazagaAbstract:The use of open technologies and standards have made easier the integration of Web Services into end-applications. These interoperable Services have been organized on distributed architectures over Internet in accordance with shared functional principles. But these Web-Service architectures have not resolved the distributed computing difficulty in gluing together multiple and independent Web Services. This paper presents an approach Based on Java technology and Internet standard protocols and data formats for resolving coordination problems among Web Services. Interaction models Based on distributed events over HTTP are supported for providing the required coordination functionality. Cooperation problems and their solutions have been studied in the prototypical context of Location-Based Services.
