P. Gutiérrez, I. Miloucheva, D. Wagner, C. Niephaus, A. Flizikowski, N. Van Wambeke, F. Armando, C. Chassot, S. Romano
This paper is focussed on the NETQOS architecture for automated QoS policy provisioning, which can be used in future Internet scenarios by the different actors (i.e. network operators, service providers, and users) for flexible QoS configuration over combinations of mobile, fixed, sensor and broadcast networks. The NETQOS policy management architecture opens the possibility to specify QoS policies on a "business" level using ontology descriptions and policy management interfaces, which are specific to the actors. The business level policy specifications are translated by the NETQOS system into intermediate and operational QoS policies for automated QoS configuration at the managed heterogeneous network and transport entities. NETQOS allows QoS policy specification and dependency analysis considering service level agreements (SLAs) between the actors, as well as automated policy provisioning and adaptation. The interaction of the NETQOS components is based on a common policy repository. The particular focus of the paper is aimed to discuss ontology and actor oriented QoS policy specification and configuration for heterogeneous networks, as well as NETQOS QoS policy management interfaces at business level and automated translation of business QoS policies to intermediate and operational policy level.
{"title":"NETQOS Policy Management Architecture for Flexible QoS Provisioning in Future Internet","authors":"P. Gutiérrez, I. Miloucheva, D. Wagner, C. Niephaus, A. Flizikowski, N. Van Wambeke, F. Armando, C. Chassot, S. Romano","doi":"10.1109/NGMAST.2008.65","DOIUrl":"https://doi.org/10.1109/NGMAST.2008.65","url":null,"abstract":"This paper is focussed on the NETQOS architecture for automated QoS policy provisioning, which can be used in future Internet scenarios by the different actors (i.e. network operators, service providers, and users) for flexible QoS configuration over combinations of mobile, fixed, sensor and broadcast networks. The NETQOS policy management architecture opens the possibility to specify QoS policies on a \"business\" level using ontology descriptions and policy management interfaces, which are specific to the actors. The business level policy specifications are translated by the NETQOS system into intermediate and operational QoS policies for automated QoS configuration at the managed heterogeneous network and transport entities. NETQOS allows QoS policy specification and dependency analysis considering service level agreements (SLAs) between the actors, as well as automated policy provisioning and adaptation. The interaction of the NETQOS components is based on a common policy repository. The particular focus of the paper is aimed to discuss ontology and actor oriented QoS policy specification and configuration for heterogeneous networks, as well as NETQOS QoS policy management interfaces at business level and automated translation of business QoS policies to intermediate and operational policy level.","PeriodicalId":247507,"journal":{"name":"2008 The Second International Conference on Next Generation Mobile Applications, Services, and Technologies","volume":"318 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115349837","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}
C. Jacob, H. Pfeffer, S. Steglich, Li Yan, Qifeng Ma
Within domain-based service environments, service discovery through appropriate matchmaking procedures remains a key challenge. In particular, the consideration of additional context information and the need for dynamic and fast service publishing cause high demands on the according automatic matching procedures and the service description structures they are operating on.Within this paper, we introduce a model to abstract the complexity of service descriptions for both the service provider and the consumer. Therefore, the internal representation of service descriptions is transparent providing only a suitable access model for services. Service Consumers are enabled to access services by specifying the effects while service providers are provided with a model to classify their service by categories. Within this approach special emphasis is put on the consideration of service compositions during the matching procedure.
{"title":"A View-Based Approach for Semantic Service Descriptions","authors":"C. Jacob, H. Pfeffer, S. Steglich, Li Yan, Qifeng Ma","doi":"10.1109/NGMAST.2008.66","DOIUrl":"https://doi.org/10.1109/NGMAST.2008.66","url":null,"abstract":"Within domain-based service environments, service discovery through appropriate matchmaking procedures remains a key challenge. In particular, the consideration of additional context information and the need for dynamic and fast service publishing cause high demands on the according automatic matching procedures and the service description structures they are operating on.Within this paper, we introduce a model to abstract the complexity of service descriptions for both the service provider and the consumer. Therefore, the internal representation of service descriptions is transparent providing only a suitable access model for services. Service Consumers are enabled to access services by specifying the effects while service providers are provided with a model to classify their service by categories. Within this approach special emphasis is put on the consideration of service compositions during the matching procedure.","PeriodicalId":247507,"journal":{"name":"2008 The Second International Conference on Next Generation Mobile Applications, Services, and Technologies","volume":"256 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114422154","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}
As mobile personal devices have become more powerful, being used across different environments, there is a need to further enable these devices to seamlessly share resources such as processing power, storage capacity and functionality in the form of services available across a global network environment such as the computational grid. This paper aims to present a generic framework for self-organized and adaptive scheduling in a grid environment built on personal mobile devices i.e. a Personal Mobile Grid (PM-Grid). The proposed scheduling framework (HoPe), which is inspired by honeybee food collection techniques, shows a considerable enhancement in service turnaround time and throughput over the traditional opportunistic scheduling heuristic. Consequently, we claim that the proposed scheduling framework can benefit applications in grid environments.
{"title":"A Generic Framework for Resource Scheduling in Personal Mobile Grids Based on Honeybee Colony","authors":"H. Kurdi, M. Li, H. Al-Raweshidy","doi":"10.1109/NGMAST.2008.29","DOIUrl":"https://doi.org/10.1109/NGMAST.2008.29","url":null,"abstract":"As mobile personal devices have become more powerful, being used across different environments, there is a need to further enable these devices to seamlessly share resources such as processing power, storage capacity and functionality in the form of services available across a global network environment such as the computational grid. This paper aims to present a generic framework for self-organized and adaptive scheduling in a grid environment built on personal mobile devices i.e. a Personal Mobile Grid (PM-Grid). The proposed scheduling framework (HoPe), which is inspired by honeybee food collection techniques, shows a considerable enhancement in service turnaround time and throughput over the traditional opportunistic scheduling heuristic. Consequently, we claim that the proposed scheduling framework can benefit applications in grid environments.","PeriodicalId":247507,"journal":{"name":"2008 The Second International Conference on Next Generation Mobile Applications, Services, and Technologies","volume":"135 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114535454","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 extracts the lessons learned in an on going project which aims at delivering agricultural intelligence to build a capable decision support system that improves agricultural practice and decision making in sub-Saharan Africa. By generalizing the research challenges experienced so far, this paper provides a framework for designing wireless sensor networks for agricultural monitoring in developing regions, taking into account all the particularities of such environments. In this framework, new solutions and research ideas are proposed for sensor network design to address the special challenges of the developing world. These include a zone-based joint topology control and power scheduling mechanism, a multi-sink architecture with associated back-link/storage aware complementary routing and a parameter-energy-environment aware task scheduling approach.
{"title":"A Technical Framework for Designing Wireless Sensor Networks for Agricultural Monitoring in Developing Regions","authors":"A. Kabashi, J. Elmirghani","doi":"10.1109/NGMAST.2008.64","DOIUrl":"https://doi.org/10.1109/NGMAST.2008.64","url":null,"abstract":"This paper extracts the lessons learned in an on going project which aims at delivering agricultural intelligence to build a capable decision support system that improves agricultural practice and decision making in sub-Saharan Africa. By generalizing the research challenges experienced so far, this paper provides a framework for designing wireless sensor networks for agricultural monitoring in developing regions, taking into account all the particularities of such environments. In this framework, new solutions and research ideas are proposed for sensor network design to address the special challenges of the developing world. These include a zone-based joint topology control and power scheduling mechanism, a multi-sink architecture with associated back-link/storage aware complementary routing and a parameter-energy-environment aware task scheduling approach.","PeriodicalId":247507,"journal":{"name":"2008 The Second International Conference on Next Generation Mobile Applications, Services, and Technologies","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114665889","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}
Mobile agents have been proposed as a distributed programming model for large-scale distributed systems. The model is appealing as a response to many of the challenges in today's large scale distributed environments: efficiency, heterogeneity, autonomy, etc. Electronic commerce, data mining, and network management are examples of applications domains. Though the model is very well understood by industrial and research communities, aspects still need to be investigated. In this paper, we investigate a key distribution approach suitable for mobile agents. The approach takes into account the dynamic behavior of the system: in particular the dynamic agent itinerary and the dynamic platform topology where servers can join and disjoin for/from receiving mobile agents.
{"title":"Key Distribution Framework for a Mobile Agent Platform","authors":"L. Ismail, E. Barka","doi":"10.1109/NGMAST.2008.61","DOIUrl":"https://doi.org/10.1109/NGMAST.2008.61","url":null,"abstract":"Mobile agents have been proposed as a distributed programming model for large-scale distributed systems. The model is appealing as a response to many of the challenges in today's large scale distributed environments: efficiency, heterogeneity, autonomy, etc. Electronic commerce, data mining, and network management are examples of applications domains. Though the model is very well understood by industrial and research communities, aspects still need to be investigated. In this paper, we investigate a key distribution approach suitable for mobile agents. The approach takes into account the dynamic behavior of the system: in particular the dynamic agent itinerary and the dynamic platform topology where servers can join and disjoin for/from receiving mobile agents.","PeriodicalId":247507,"journal":{"name":"2008 The Second International Conference on Next Generation Mobile Applications, Services, and Technologies","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128262322","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 third generation (3G) wireless systems we have a number of resources being used exclusively and simultaneously to satisfy the requirements of an arriving multimedia call. This would require the occupation and release of these resources to be in a manageable fashion. In this paper, we discuss a multi-component teleservice model for multimedia applications. Subsequently, based on this teleservice model, we introduce and analyse a multi-component based resource allocation scheme (MC-RAS) for call and traffic management that exploits the multi-component nature of multimedia traffic. Practical network parameters were used to evaluate the performance of the scheme as compared with the standard approach based on the single multimedia stream flow. The proposed scheme shows better performance in terms of reducing blocking probabilities.
{"title":"Multi-component Teleservice Model for Multimedia Applications","authors":"O. Alani, R. Mehmood","doi":"10.1109/NGMAST.2008.95","DOIUrl":"https://doi.org/10.1109/NGMAST.2008.95","url":null,"abstract":"In third generation (3G) wireless systems we have a number of resources being used exclusively and simultaneously to satisfy the requirements of an arriving multimedia call. This would require the occupation and release of these resources to be in a manageable fashion. In this paper, we discuss a multi-component teleservice model for multimedia applications. Subsequently, based on this teleservice model, we introduce and analyse a multi-component based resource allocation scheme (MC-RAS) for call and traffic management that exploits the multi-component nature of multimedia traffic. Practical network parameters were used to evaluate the performance of the scheme as compared with the standard approach based on the single multimedia stream flow. The proposed scheme shows better performance in terms of reducing blocking probabilities.","PeriodicalId":247507,"journal":{"name":"2008 The Second International Conference on Next Generation Mobile Applications, Services, and Technologies","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130883062","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. Nascimento, Saulo Queiroz, Edjair Mota, L. Galvao, E. Nascimento
In this paper we focus on the following question: how routing protocols, working under different channel conditions, can influence the human perceived quality of VoIP calls in a wireless mesh backbone? In order to respond this question, we propose a study case where we analyze two routing approaches in a 802.11 wireless mesh backbone, namely, reactive AODV and proactive OLSR. We calculated the voice speech quality by making use of a reviewed version of ITU-T E-model proposed in previous work. Results obtained from highly credible stochastic simulation environment, also described in this paper, showed that AODV performs better in very hostile mediums while OLSR presents better results when more friendly mediums take place.
{"title":"Influence of Routing Protocol on VoIP Quality Performance in Wireless Mesh Backbone","authors":"A. Nascimento, Saulo Queiroz, Edjair Mota, L. Galvao, E. Nascimento","doi":"10.1109/NGMAST.2008.80","DOIUrl":"https://doi.org/10.1109/NGMAST.2008.80","url":null,"abstract":"In this paper we focus on the following question: how routing protocols, working under different channel conditions, can influence the human perceived quality of VoIP calls in a wireless mesh backbone? In order to respond this question, we propose a study case where we analyze two routing approaches in a 802.11 wireless mesh backbone, namely, reactive AODV and proactive OLSR. We calculated the voice speech quality by making use of a reviewed version of ITU-T E-model proposed in previous work. Results obtained from highly credible stochastic simulation environment, also described in this paper, showed that AODV performs better in very hostile mediums while OLSR presents better results when more friendly mediums take place.","PeriodicalId":247507,"journal":{"name":"2008 The Second International Conference on Next Generation Mobile Applications, Services, and Technologies","volume":"20 6","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120814361","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 : 2008-09-16DOI: 10.1504/IJIPT.2009.024169
A. Mohamed, H. Alnuweiri
Multicast-based data communication is an efficient communication scheme especially in multihop ad hoc networks where the MAC layer is based on one-hop broadcast from one source to multiple receivers. In this paper, we discuss a framework of rate allocation for a set of multicast sessions over multihop wireless networks. We propose a framework that facilitates the online calculation of the optimal rates for a set of multicast sessions such that the aggregate utility for all sessions is maximized. This framework is used to steer the entire network of ad hoc nodes towards the optimal point in real time using a totally distributed and asynchronous environment settings. We present a series of implementations based on different network settings and show that not only convergence to the optimal rates is attained in all these network settings but also network changing conditions such as mobility and dynamic channel capacity can be tracked in real time.
{"title":"Wireless Multicast Cross-Layer Framework for Rate Allocation: Protocol Design","authors":"A. Mohamed, H. Alnuweiri","doi":"10.1504/IJIPT.2009.024169","DOIUrl":"https://doi.org/10.1504/IJIPT.2009.024169","url":null,"abstract":"Multicast-based data communication is an efficient communication scheme especially in multihop ad hoc networks where the MAC layer is based on one-hop broadcast from one source to multiple receivers. In this paper, we discuss a framework of rate allocation for a set of multicast sessions over multihop wireless networks. We propose a framework that facilitates the online calculation of the optimal rates for a set of multicast sessions such that the aggregate utility for all sessions is maximized. This framework is used to steer the entire network of ad hoc nodes towards the optimal point in real time using a totally distributed and asynchronous environment settings. We present a series of implementations based on different network settings and show that not only convergence to the optimal rates is attained in all these network settings but also network changing conditions such as mobility and dynamic channel capacity can be tracked in real time.","PeriodicalId":247507,"journal":{"name":"2008 The Second International Conference on Next Generation Mobile Applications, Services, and Technologies","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122999297","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}
N. Saeed, M. Abbod, T. H. Sulaiman, H. Al-Raweshidy, H. Kurdi
Currently, in any Mobile Ad Hoc Network (MANET), one routing protocol routes the packets to their destination no matter what the network's context is! This 'one size fits all' approach is far from optimum. This paper introduces a novel intelligent routing protocol selector for MANET. The intelligent selector learns the network's performance and behaviour then chooses the optimum routing protocol according to the network's context, e.g.: number of nodes and mobility. The selector recommends the optimum network context depending on the current network situation. The selector is adaptable to the variations in the network environment by predicting four important parameters that indicate the changes in the network context. The intelligent selector system can deploy any protocol to its best advantages by testing the network's context and employing the most suitable protocol for that situation.
{"title":"Intelligent MANET Routing Protocol Selector","authors":"N. Saeed, M. Abbod, T. H. Sulaiman, H. Al-Raweshidy, H. Kurdi","doi":"10.1109/NGMAST.2008.22","DOIUrl":"https://doi.org/10.1109/NGMAST.2008.22","url":null,"abstract":"Currently, in any Mobile Ad Hoc Network (MANET), one routing protocol routes the packets to their destination no matter what the network's context is! This 'one size fits all' approach is far from optimum. This paper introduces a novel intelligent routing protocol selector for MANET. The intelligent selector learns the network's performance and behaviour then chooses the optimum routing protocol according to the network's context, e.g.: number of nodes and mobility. The selector recommends the optimum network context depending on the current network situation. The selector is adaptable to the variations in the network environment by predicting four important parameters that indicate the changes in the network context. The intelligent selector system can deploy any protocol to its best advantages by testing the network's context and employing the most suitable protocol for that situation.","PeriodicalId":247507,"journal":{"name":"2008 The Second International Conference on Next Generation Mobile Applications, Services, and Technologies","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121469637","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 method for assessing the performance of time diversity (TD) along a single downlink path is proposed. The evaluation is done using TD gain, which is obtained from joint distribution of similar retransmitted rain attenuation time series separated by finite time delay. Statistics use to assess the performance of TD are obtained from analyses of measurements from the most recent British Atmospheric Data Centre (BADC) database. TD is presented in this paper as a suitable fade mitigation scheme for increasing link availability and improving the quality of service in broadcast systems. Prior to achieving a model of TD, analyses of propagation datasets (November 2005) and extraction of attenuation statistics have been carried out. These statistics are necessary for the modeling process and for the design of a satellite link between any two earth stations having a separation distance in excess of the mean rain cell size which is roughly 10 Km. Comparisons are made with ITU-R model and some useful conclusions deduced.
{"title":"Evaluating Time Diversity Performance on an On-board Processing Satellite to Earth Station Downlink","authors":"K.M. Udofia, I. Otung","doi":"10.1109/NGMAST.2008.21","DOIUrl":"https://doi.org/10.1109/NGMAST.2008.21","url":null,"abstract":"A method for assessing the performance of time diversity (TD) along a single downlink path is proposed. The evaluation is done using TD gain, which is obtained from joint distribution of similar retransmitted rain attenuation time series separated by finite time delay. Statistics use to assess the performance of TD are obtained from analyses of measurements from the most recent British Atmospheric Data Centre (BADC) database. TD is presented in this paper as a suitable fade mitigation scheme for increasing link availability and improving the quality of service in broadcast systems. Prior to achieving a model of TD, analyses of propagation datasets (November 2005) and extraction of attenuation statistics have been carried out. These statistics are necessary for the modeling process and for the design of a satellite link between any two earth stations having a separation distance in excess of the mean rain cell size which is roughly 10 Km. Comparisons are made with ITU-R model and some useful conclusions deduced.","PeriodicalId":247507,"journal":{"name":"2008 The Second International Conference on Next Generation Mobile Applications, Services, and Technologies","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127640257","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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