The Experts below are selected from a list of 138 Experts worldwide ranked by ideXlab platform

Bartosz Balazinski - One of the best experts on this subject based on the ideXlab platform.

  • Local selected IP Traffic Offload Reducing traffic congestion within the Mobile Core Network
    2013 IEEE 10th Consumer Communications and Networking Conference (CCNC), 2013
    Co-Authors: John Cartmell, John Mcnally, Bartosz Balazinski
    Abstract:

    Selected Internet Protocol (IP) Traffic Offload (SIPTO) is a feature defined in the 3GPP standards. In this paper we propose a Converged Gateway (CGW) which enables the SIPTO functionality to be performed locally, before data reaches the edge of the Evolved Packet Core (EPC) Network. This feature relieves the EPC from high-bandwidth flows that could otherwise cause significant congestion. This local SIPTO functionality within the CGW identifies the IP Flow type, applies a local user policy rule (optionally provisioned from the Mobile Core Network), and then executes the offloading.

John Cartmell - One of the best experts on this subject based on the ideXlab platform.

  • meeting lawful interception requirements for selected ip traffic offload and local ip access traffic
    IEEE International Conference on Technologies for Homeland Security, 2013
    Co-Authors: John Cartmell
    Abstract:

    Cellular Network operators are dealing with the increased data requirements of their customers by attempting to offload traffic from the Mobile Core Network. The 3rd Generation Partnership Project (3GPP) standards have defined several strategies that allow for offloading user traffic from the Mobile Core Network. The 3GPP standards also define requirements for the Mobile Networks to support lawful interception of subscriber traffic. The current methods employed by Mobile Network operators to perform lawful interception are insufficient to support the traffic offload methods. This paper describes the current lawful interception landscape as well as the methods to perform traffic offload. It then proposes the architecture and methods that allow for traffic offload while satisfying law enforcement needs.

  • Local selected IP Traffic Offload Reducing traffic congestion within the Mobile Core Network
    2013 IEEE 10th Consumer Communications and Networking Conference (CCNC), 2013
    Co-Authors: John Cartmell, John Mcnally, Bartosz Balazinski
    Abstract:

    Selected Internet Protocol (IP) Traffic Offload (SIPTO) is a feature defined in the 3GPP standards. In this paper we propose a Converged Gateway (CGW) which enables the SIPTO functionality to be performed locally, before data reaches the edge of the Evolved Packet Core (EPC) Network. This feature relieves the EPC from high-bandwidth flows that could otherwise cause significant congestion. This local SIPTO functionality within the CGW identifies the IP Flow type, applies a local user policy rule (optionally provisioned from the Mobile Core Network), and then executes the offloading.

Jaafar M H Elmirghani - One of the best experts on this subject based on the ideXlab platform.

  • Optimized Energy Aware 5G Network Function Virtualization
    IEEE Access, 2019
    Co-Authors: Ahmed N. Al-quzweeni, Taisir E H Elgorashi, Ahmed Qasim Lawey, Jaafar M H Elmirghani
    Abstract:

    In this paper, Network function virtualization (NFV) is identified as a promising key technology, which can contribute to energy-efficiency improvement in 5G Networks. An optical Network supported architecture is proposed and investigated in this paper to provide the wired infrastructure needed in 5G Networks and to support NFV toward an energy efficient 5G Network. In this paper, the Mobile Core Network functions, as well as baseband function, are virtualized and provided as VMs. The impact of the total number of active users in the Network, backhaul/fronthaul configurations, and VM inter-traffic are investigated. A mixed integer linear programming (MILP) optimization model is developed with the objective of minimizing the total power consumption by optimizing the VMs location and VMs servers’ utilization. The MILP model results show that virtualization can result in up to 38% (average 34%) energy saving. The results also reveal how the total number of active users affects the baseband virtual machines (BBUVMs) optimal distribution whilst the Core Network virtual machines (CNVMs) distribution is affected mainly by the inter-traffic between the VMs. For real-time implementation, two heuristics are developed, an energy efficient NFV without CNVMs inter-traffic (EENFVnoITr) heuristic and an energy efficient NFV with CNVMs inter-traffic (EENFVwithITr) heuristic, both produce comparable results to the optimal MILP results. Finally, a genetic algorithm is developed for further verification of the results.

  • optimized energy aware 5g Network function virtualization
    arXiv: Networking and Internet Architecture, 2018
    Co-Authors: Ahmed Alquzweeni, Ahmed Qasim Lawey, Taisir E H Elgorashi, Jaafar M H Elmirghani
    Abstract:

    In this paper, Network function virtualization (NFV) is identified as a promising key technology that can contribute to energy-efficiency improvement in 5G Networks. an optical Network supported architecture is proposed and investigated in this work to provide the wired infrastructure needed in 5G Networks and to support NFV towards an energy efficient 5G Networks. In this architecture the Mobile Core Network functions as well as baseband function are virtualized and provided as VMs. the impact of the total number of active users in the Network, backhaul/fronthaul configurations and VM inter-traffic are investigated. A mixed integer linear programming (MILP) optimising model is developed with the objective of minimising the total power consumption by optimizing the VMs location and VMs servers' utilisation. The MILP model results show that virtualization can result in up to 38% (average 34) energy saving. The results also reveal how the total number of active users affects the baseband VMs optimal distribution whilst the Core Network VMs distribution is affected mainly by the inter-traffic between the VMs. For real-time implementation, two heuristics are developed an Energy Efficient NFV without CNVMs inter-traffic (EENFVnoITr) heuristic and an Energy Efficient NFV with CNVMs inter-traffic (EENFVwithITr) heuristic, both produce comparable results to the optimal MILP results

Masayuki Murata - One of the best experts on this subject based on the ideXlab platform.

  • Effects of C/U Plane Separation and Bearer Aggregation in Mobile Core Network
    IEEE Transactions on Network and Service Management, 2018
    Co-Authors: Go Hasegawa, Masayuki Murata
    Abstract:

    In response to the growing demand for cellular Networks, it is essential to improve the capacity of Mobile Core Networks. Especially, in terms of accommodating machine-to-machine/Internet-of-Things (M2M/IoT) terminals into cellular Networks, the load on the control and the user planes of the Mobile Core Network increases massively. To deal with this problem, it is possible to apply virtualization technologies, such as software-defined Network and Network function virtualization. However, few existing studies evaluate such solutions for Mobile Core Networks numerically and in detail. In this paper, we first evaluate Mobile Core Network architectures with virtualization technologies and control/user (C/U) plane separation using the mathematical analysis. We also propose a novel bearer aggregation method to reduce the control plane load to accommodate massive M2M/IoT terminals. The result of numerical evaluation shows that the capacity of the Mobile Core Network can be increased by up to 32.8% with node virtualization and C/U plane separation, and further by 201.4% by using bearer aggregation. Moreover, to maintain the performance of the Mobile Core Network, we should carefully determine where the bearer aggregation is applied and when the shared bearer for each terminal is determined based on application characteristics and the number of accommodated M2M/IoT terminals.

  • design and performance evaluation of bearer aggregation method in Mobile Core Network with c u plane separation
    2017 IFIP Networking Conference (IFIP Networking) and Workshops, 2017
    Co-Authors: Shuya Abe, Go Hasegawa, Masayuki Murata
    Abstract:

    What is the best way to evaluate the capacity of a Mobile Core Network with visualization technologies and C/U plane separation using SDN? How can we increase the capacity, especially for accommodating massive M2M/IoT terminals? With increasing demand for cellular Networks, enhancing the capacity of the Mobile Core Networks is an urgent issue. In particular, when it comes to accommodating M2M/IoT terminals for cellular Networks, the increasing load on the control plane of the Mobile Core Network, as well as user plane, becomes a serious problem. While applying virtualization technologies such as SDN and NFV is one possible solution, there are almost no existing works on numerical or concrete evaluation of such solutions. In this paper, on the basis of Mobile Core Networks with virtualized nodes and C/U plane separation, we first propose a bearer aggregation method for decreasing the control plane load to accommodate massive M2M/IoT terminals. We then show our mathematical analysis of the performance of Mobile Core Networks based on a simple queuing theory. Specifically, we focus on the effect of the node virtualization and C/U plane separation and on the design parameters of the bearer aggregation. The numerical evaluation results show that we can increase the capacity of the Mobile Core Network by up to 32.8% with node virtualization and C/U plane separation, and by an additional 201.4% with bearer aggregation. We also explain that to maintain the performance of the Mobile Core Network, we should carefully determine where the bearer aggregation is applied and when the shared bearer for each UE is determined on the basis of application characteristics and the number of M2M/IoT terminals to be accommodated.

John Mcnally - One of the best experts on this subject based on the ideXlab platform.

  • Local selected IP Traffic Offload Reducing traffic congestion within the Mobile Core Network
    2013 IEEE 10th Consumer Communications and Networking Conference (CCNC), 2013
    Co-Authors: John Cartmell, John Mcnally, Bartosz Balazinski
    Abstract:

    Selected Internet Protocol (IP) Traffic Offload (SIPTO) is a feature defined in the 3GPP standards. In this paper we propose a Converged Gateway (CGW) which enables the SIPTO functionality to be performed locally, before data reaches the edge of the Evolved Packet Core (EPC) Network. This feature relieves the EPC from high-bandwidth flows that could otherwise cause significant congestion. This local SIPTO functionality within the CGW identifies the IP Flow type, applies a local user policy rule (optionally provisioned from the Mobile Core Network), and then executes the offloading.