The Experts below are selected from a list of 1017 Experts worldwide ranked by ideXlab platform
Dragos Vingarzan - One of the best experts on this subject based on the ideXlab platform.
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Enhanced gateway selection for optimal routing in a distributed Evolved Packet Core (EPC) network
2013 10th International Conference on Electrical Engineering Electronics Computer Telecommunications and Information Technology, 2013Co-Authors: Nicholas Katanekwa, Marius Corici, Dragos Vingarzan, Neco Ventura, Thomas MagedanzAbstract:The introduction of Long Term Evolution (LTE) and the Evolved Packet Core (EPC) has led to a proliferation of data hungry mobile devices and services. The result is a surge in mobile data traffic compelling operators to look for solutions to improve system scalability and flexibility to cope with this traffic surge. One such solution is the distribution of the EPCs data plane entities, that is, by moving them closer to the network edge. Within the EPC's standardized gateway selection framework for IP traffic routing in a distributed environment, mobility of User Equipment (UEs) with IP traffic destined to local networks leads to nonoptimal routing. Furthermore, when a UE has multiple Packet Data Network (PDN) connections which include local and central Core network connections, there is a high likelihood of the occurrence of nonoptimal routing for the local connections. Such nonoptimal routing may lead to inefficient use of backhaul network resources and may further result in degradation of Quality of Service for delay sensitive applications. In this paper, we investigate and propose a solution to the nonoptimal routing problem for local IP traffic in such an environment. The testbed implementation and evaluation shows that the proposed scheme can improve the routing and ensure service quality for local IP traffic in a distributed EPC network.
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optimized low mobility support in massive mobile broadband Evolved Packet Core architecture
International Conference on Networks, 2011Co-Authors: Marius Corici, Dragos Vingarzan, J. Fiedler, Thomas MagedanzAbstract:With the deployment of new wireless connected devices like sensors and actuators for metering, automotive, healthcare, tracing etc. the wireless Core network has to support a new level of scalability for all its functionality, including the mobility management. Being designed for human communication only, the current network architecture ensures seamless mobility in all network locations for all devices being highly redundant for low mobile devices which are rarely and in reduced areas or never moving. This paper introduces a new low mobility management concept based on subscriber device differentiation and differentiated forwarding mechanisms, along with its integration with the current functionality through dynamic management parameters updates. Furthermore, the concept is exemplified on the 3GPP Evolved Packet Core architecture and evaluated as a testbed realization based on the Fraunhofer OpenEPC testbed.
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MONAMI - Proactive Vertical Handover Optimizations in the 3GPP Evolved Packet Core
Lecture Notes of the Institute for Computer Sciences Social Informatics and Telecommunications Engineering, 2011Co-Authors: Marius Corici, Cornel Pampu, Dragos Vingarzan, Thomas Magedanz, Qing ZhouAbstract:Mobility in a wireless heterogeneous scenario in which the mobile devices are able to connect to more than one access technology available in their vicinity requires a re-consideration of the access network reselection mechanisms as to ensure seamless handovers for real deployments. This paper describes and evaluates a new proactive vertical handover optimization which enables a fast reselection, independent and in addition to the classic proactive procedures. It uses as central concept the separation between the proactive context establishment and the actual handover triggered operations which may be at their turn active or proactive. This concept is exemplified on the 3GPP Evolved Packet Core and evaluated on a minimal prototype implementation.
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Evolution of the resource reservation mechanisms for machine type communication over mobile broadband Evolved Packet Core architecture
2011 IEEE GLOBECOM Workshops GC Wkshps 2011, 2011Co-Authors: Marius Corici, J. Fiedler, Thomas Magedanz, Dragos VingarzanAbstract:With the deployment of novel wireless broadband technologies such\nas LTE and LTE-Advanced, new types of devices will be able to communicate\nremotely such as sensors and actuators, enabling the deployment of\nnew services and applications generically named Machine-to-Machine\n(M2M) communication. However, the current Core network architectures\nare designed only for Human-to-Human communication, lacking the fundamental\nsupport for the machine type communication patterns for functions\nlike mobility and resource management, charging control etc. This\narticle introduces a novel solution for mitigating with the basic\nsupport for resource management for M2M through wireless device based\ncustomization and grouping and introduction of cached based resource\nreservation and event notification mechanisms. Furthermore, the concept\nis exemplified on the 3GPP Evolved Packet Core architecture and evaluated\nas a testbed realization based on the Fraunhofer OpenEPC testbed.
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ICON - Optimized low mobility support in massive mobile broadband Evolved Packet Core architecture
2011 17th IEEE International Conference on Networks, 2011Co-Authors: Marius Corici, Dragos Vingarzan, J. Fiedler, Thomas MagedanzAbstract:With the deployment of new wireless connected devices like sensors and actuators for metering, automotive, healthcare, tracing etc. the wireless Core network has to support a new level of scalability for all its functionality, including the mobility management. Being designed for human communication only, the current network architecture ensures seamless mobility in all network locations for all devices being highly redundant for low mobile devices which are rarely and in reduced areas or never moving. This paper introduces a new low mobility management concept based on subscriber device differentiation and differentiated forwarding mechanisms, along with its integration with the current functionality through dynamic management parameters updates. Furthermore, the concept is exemplified on the 3GPP Evolved Packet Core architecture and evaluated as a testbed realization based on the Fraunhofer OpenEPC testbed.
Thomas Magedanz - One of the best experts on this subject based on the ideXlab platform.
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NOMS - Design and implementation of a Carrier Grade Software Defined Telecommunication Switch and Controller
2014 IEEE Network Operations and Management Symposium (NOMS), 2014Co-Authors: Julius Mueller, Yuwen Chen, Benjamin Reichel, Valentin Vlad, Thomas MagedanzAbstract:Today's Next Generation Mobile Network architecture is challenged by several limitations in regard to the performance and flexibility. Recent investigations and proposals on Core network architecture improvements through applying the Software Defined Network (SDN) concepts have been published, but no implementation has been presented yet. The main contribution of this paper is the design, implementation and validation of a Carrier Grade Software Defined Telecommunication system consisting of an OpenFlow Controller (OFC), Switch (OFS) and Protocol (OFP) according to latest OpenFlow (OF) standards and optimized for an 3GPP Evolved Packet Core (EPC). This paper first presents related work, positions contributions of this paper against the State of the Art and identifies important requirements for a new telecommunication network architecture. Secondly as a main contribution, the specifications of Software Defined Telecommunication OFC, OFS and OFP are presented as an architectural extension for the Evolved Packet Core (EPC). A section on the implementation of the presented specifications highlights the most relevant software technical design decisions. An extensive evaluation validates and evaluates the prototype within an existing Evolved Packet Core implementation. A summary concludes all finding of the authors and presents planned Future Work finally.
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Enhanced gateway selection for optimal routing in a distributed Evolved Packet Core (EPC) network
2013 10th International Conference on Electrical Engineering Electronics Computer Telecommunications and Information Technology, 2013Co-Authors: Nicholas Katanekwa, Marius Corici, Dragos Vingarzan, Neco Ventura, Thomas MagedanzAbstract:The introduction of Long Term Evolution (LTE) and the Evolved Packet Core (EPC) has led to a proliferation of data hungry mobile devices and services. The result is a surge in mobile data traffic compelling operators to look for solutions to improve system scalability and flexibility to cope with this traffic surge. One such solution is the distribution of the EPCs data plane entities, that is, by moving them closer to the network edge. Within the EPC's standardized gateway selection framework for IP traffic routing in a distributed environment, mobility of User Equipment (UEs) with IP traffic destined to local networks leads to nonoptimal routing. Furthermore, when a UE has multiple Packet Data Network (PDN) connections which include local and central Core network connections, there is a high likelihood of the occurrence of nonoptimal routing for the local connections. Such nonoptimal routing may lead to inefficient use of backhaul network resources and may further result in degradation of Quality of Service for delay sensitive applications. In this paper, we investigate and propose a solution to the nonoptimal routing problem for local IP traffic in such an environment. The testbed implementation and evaluation shows that the proposed scheme can improve the routing and ensure service quality for local IP traffic in a distributed EPC network.
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optimized low mobility support in massive mobile broadband Evolved Packet Core architecture
International Conference on Networks, 2011Co-Authors: Marius Corici, Dragos Vingarzan, J. Fiedler, Thomas MagedanzAbstract:With the deployment of new wireless connected devices like sensors and actuators for metering, automotive, healthcare, tracing etc. the wireless Core network has to support a new level of scalability for all its functionality, including the mobility management. Being designed for human communication only, the current network architecture ensures seamless mobility in all network locations for all devices being highly redundant for low mobile devices which are rarely and in reduced areas or never moving. This paper introduces a new low mobility management concept based on subscriber device differentiation and differentiated forwarding mechanisms, along with its integration with the current functionality through dynamic management parameters updates. Furthermore, the concept is exemplified on the 3GPP Evolved Packet Core architecture and evaluated as a testbed realization based on the Fraunhofer OpenEPC testbed.
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MONAMI - Proactive Vertical Handover Optimizations in the 3GPP Evolved Packet Core
Lecture Notes of the Institute for Computer Sciences Social Informatics and Telecommunications Engineering, 2011Co-Authors: Marius Corici, Cornel Pampu, Dragos Vingarzan, Thomas Magedanz, Qing ZhouAbstract:Mobility in a wireless heterogeneous scenario in which the mobile devices are able to connect to more than one access technology available in their vicinity requires a re-consideration of the access network reselection mechanisms as to ensure seamless handovers for real deployments. This paper describes and evaluates a new proactive vertical handover optimization which enables a fast reselection, independent and in addition to the classic proactive procedures. It uses as central concept the separation between the proactive context establishment and the actual handover triggered operations which may be at their turn active or proactive. This concept is exemplified on the 3GPP Evolved Packet Core and evaluated on a minimal prototype implementation.
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Evolution of the resource reservation mechanisms for machine type communication over mobile broadband Evolved Packet Core architecture
2011 IEEE GLOBECOM Workshops GC Wkshps 2011, 2011Co-Authors: Marius Corici, J. Fiedler, Thomas Magedanz, Dragos VingarzanAbstract:With the deployment of novel wireless broadband technologies such\nas LTE and LTE-Advanced, new types of devices will be able to communicate\nremotely such as sensors and actuators, enabling the deployment of\nnew services and applications generically named Machine-to-Machine\n(M2M) communication. However, the current Core network architectures\nare designed only for Human-to-Human communication, lacking the fundamental\nsupport for the machine type communication patterns for functions\nlike mobility and resource management, charging control etc. This\narticle introduces a novel solution for mitigating with the basic\nsupport for resource management for M2M through wireless device based\ncustomization and grouping and introduction of cached based resource\nreservation and event notification mechanisms. Furthermore, the concept\nis exemplified on the 3GPP Evolved Packet Core architecture and evaluated\nas a testbed realization based on the Fraunhofer OpenEPC testbed.
Marius Corici - One of the best experts on this subject based on the ideXlab platform.
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Enhanced gateway selection for optimal routing in a distributed Evolved Packet Core (EPC) network
2013 10th International Conference on Electrical Engineering Electronics Computer Telecommunications and Information Technology, 2013Co-Authors: Nicholas Katanekwa, Marius Corici, Dragos Vingarzan, Neco Ventura, Thomas MagedanzAbstract:The introduction of Long Term Evolution (LTE) and the Evolved Packet Core (EPC) has led to a proliferation of data hungry mobile devices and services. The result is a surge in mobile data traffic compelling operators to look for solutions to improve system scalability and flexibility to cope with this traffic surge. One such solution is the distribution of the EPCs data plane entities, that is, by moving them closer to the network edge. Within the EPC's standardized gateway selection framework for IP traffic routing in a distributed environment, mobility of User Equipment (UEs) with IP traffic destined to local networks leads to nonoptimal routing. Furthermore, when a UE has multiple Packet Data Network (PDN) connections which include local and central Core network connections, there is a high likelihood of the occurrence of nonoptimal routing for the local connections. Such nonoptimal routing may lead to inefficient use of backhaul network resources and may further result in degradation of Quality of Service for delay sensitive applications. In this paper, we investigate and propose a solution to the nonoptimal routing problem for local IP traffic in such an environment. The testbed implementation and evaluation shows that the proposed scheme can improve the routing and ensure service quality for local IP traffic in a distributed EPC network.
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optimized low mobility support in massive mobile broadband Evolved Packet Core architecture
International Conference on Networks, 2011Co-Authors: Marius Corici, Dragos Vingarzan, J. Fiedler, Thomas MagedanzAbstract:With the deployment of new wireless connected devices like sensors and actuators for metering, automotive, healthcare, tracing etc. the wireless Core network has to support a new level of scalability for all its functionality, including the mobility management. Being designed for human communication only, the current network architecture ensures seamless mobility in all network locations for all devices being highly redundant for low mobile devices which are rarely and in reduced areas or never moving. This paper introduces a new low mobility management concept based on subscriber device differentiation and differentiated forwarding mechanisms, along with its integration with the current functionality through dynamic management parameters updates. Furthermore, the concept is exemplified on the 3GPP Evolved Packet Core architecture and evaluated as a testbed realization based on the Fraunhofer OpenEPC testbed.
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MONAMI - Proactive Vertical Handover Optimizations in the 3GPP Evolved Packet Core
Lecture Notes of the Institute for Computer Sciences Social Informatics and Telecommunications Engineering, 2011Co-Authors: Marius Corici, Cornel Pampu, Dragos Vingarzan, Thomas Magedanz, Qing ZhouAbstract:Mobility in a wireless heterogeneous scenario in which the mobile devices are able to connect to more than one access technology available in their vicinity requires a re-consideration of the access network reselection mechanisms as to ensure seamless handovers for real deployments. This paper describes and evaluates a new proactive vertical handover optimization which enables a fast reselection, independent and in addition to the classic proactive procedures. It uses as central concept the separation between the proactive context establishment and the actual handover triggered operations which may be at their turn active or proactive. This concept is exemplified on the 3GPP Evolved Packet Core and evaluated on a minimal prototype implementation.
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Evolution of the resource reservation mechanisms for machine type communication over mobile broadband Evolved Packet Core architecture
2011 IEEE GLOBECOM Workshops GC Wkshps 2011, 2011Co-Authors: Marius Corici, J. Fiedler, Thomas Magedanz, Dragos VingarzanAbstract:With the deployment of novel wireless broadband technologies such\nas LTE and LTE-Advanced, new types of devices will be able to communicate\nremotely such as sensors and actuators, enabling the deployment of\nnew services and applications generically named Machine-to-Machine\n(M2M) communication. However, the current Core network architectures\nare designed only for Human-to-Human communication, lacking the fundamental\nsupport for the machine type communication patterns for functions\nlike mobility and resource management, charging control etc. This\narticle introduces a novel solution for mitigating with the basic\nsupport for resource management for M2M through wireless device based\ncustomization and grouping and introduction of cached based resource\nreservation and event notification mechanisms. Furthermore, the concept\nis exemplified on the 3GPP Evolved Packet Core architecture and evaluated\nas a testbed realization based on the Fraunhofer OpenEPC testbed.
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ICON - Optimized low mobility support in massive mobile broadband Evolved Packet Core architecture
2011 17th IEEE International Conference on Networks, 2011Co-Authors: Marius Corici, Dragos Vingarzan, J. Fiedler, Thomas MagedanzAbstract:With the deployment of new wireless connected devices like sensors and actuators for metering, automotive, healthcare, tracing etc. the wireless Core network has to support a new level of scalability for all its functionality, including the mobility management. Being designed for human communication only, the current network architecture ensures seamless mobility in all network locations for all devices being highly redundant for low mobile devices which are rarely and in reduced areas or never moving. This paper introduces a new low mobility management concept based on subscriber device differentiation and differentiated forwarding mechanisms, along with its integration with the current functionality through dynamic management parameters updates. Furthermore, the concept is exemplified on the 3GPP Evolved Packet Core architecture and evaluated as a testbed realization based on the Fraunhofer OpenEPC testbed.
Gianfranco Nencioni - One of the best experts on this subject based on the ideXlab platform.
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Service availability in the NFV virtualized Evolved Packet Core
2015 IEEE Global Communications Conference, GLOBECOM 2015, 2016Co-Authors: Howard J Patton, Bjarne Helvik, Poul Heegaard, Andres Gonzalez, Kashif Mahmood, Pal Gronsund, Gianfranco NencioniAbstract:Network Function Virtualization (NFV) promises to transform the way telecom providers design and operate networks and network services. Virtualized Evolved Packet Core (vEPC) is one of the NFV use cases that has got most attention, where dependability is a major concern. In the traditional EPC, functions are deployed in proprietary network elements with proven characteristics, e.g., a defined availability, and corresponding guarantees. Hence, network operators have a firm basis for the design of a robust mobile Core network. On the other hand, in the vEPC, network operators face a more challenging environment, where functions, subsystems and requirements are interrelated in a more complex manner. Hence, the assessment of the network robustness, and the design to meet dependability requirements become hard. In order to address this challenge, we provide initial guidelines to model system availability in vEPC scenarios, we propose a stochastic activity networks dependability model to assess it, and finally, we identify the most relevant factors to be considered by providers to fulfill the demanding dependability requirements of the mobile Core.
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GLOBECOM - Service Availability in the NFV Virtualized Evolved Packet Core
2015 IEEE Global Communications Conference (GLOBECOM), 2015Co-Authors: Andres J. Gonzalez, Bjarne Helvik, Poul Heegaard, Kashif Mahmood, Pal Gronsund, Gianfranco NencioniAbstract:Network Function Virtualization (NFV) promises to transform the way telecom providers design and operate networks and network services. Virtualized Evolved Packet Core (vEPC) is one of the NFV use cases that has got most attention, where dependability is a major concern. In the traditional EPC, functions are deployed in proprietary network elements with proven characteristics, e.g., a defined availability, and corresponding guarantees. Hence, network operators have a firm basis for the design of a robust mobile Core network. On the other hand, in the vEPC, network operators face a more challenging environment, where functions, subsystems and requirements are interrelated in a more complex manner. Hence, the assessment of the network robustness, and the design to meet dependability requirements become hard. In order to address this challenge, we provide initial guidelines to model system availability in vEPC scenarios, we propose a stochastic activity networks dependability model to assess it, and finally, we identify the most relevant factors to be considered by providers to fulfill the demanding dependability requirements of the mobile Core.
Leonardo Goratti - One of the best experts on this subject based on the ideXlab platform.
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fme a flexible management entity for virtualizing lte Evolved Packet Core
Network Operations and Management Symposium, 2014Co-Authors: Karina Gomez, Tinku Rasheed, Laurent Reynaud, Leonardo GorattiAbstract:The 4G Evolved Packet Core (EPC) is the pillar of the Long Term Evolution (LTE) mobile networks. Inspired by the current trend of designing distributed and more autonomous systems, we can notice that the complexity of the existing EPC seriously limits this possibility. We principally consider a reshaping of cellular networks in order to move towards virtual-distributed architectures allowing dynamic deployments of commercial/non-commercial, temporary or local networks. In this paper, we present Flexible Management Entity (FME), a distributed entity which leverages on virtualized EPC functionalities in 4G-LTE cellular systems. We highlight several conceptual and engineering trade-offs in realizing such a system.We also analyze the behavior and benefits of FME in various simulation settings that expose the dynamic deployment scenarios for 4G networks.
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NOMS - FME: A Flexible Management Entity for virtualizing LTE Evolved Packet Core
2014 IEEE Network Operations and Management Symposium (NOMS), 2014Co-Authors: Karina Gomez, Tinku Rasheed, Laurent Reynaud, Leonardo GorattiAbstract:The 4G Evolved Packet Core (EPC) is the pillar of the Long Term Evolution (LTE) mobile networks. Inspired by the current trend of designing distributed and more autonomous systems, we can notice that the complexity of the existing EPC seriously limits this possibility. We principally consider a reshaping of cellular networks in order to move towards virtual-distributed architectures allowing dynamic deployments of commercial/non-commercial, temporary or local networks. In this paper, we present Flexible Management Entity (FME), a distributed entity which leverages on virtualized EPC functionalities in 4G-LTE cellular systems. We highlight several conceptual and engineering trade-offs in realizing such a system.We also analyze the behavior and benefits of FME in various simulation settings that expose the dynamic deployment scenarios for 4G networks.
