Future core networks system (FCNS) - a secure signalling protocol stack for the UMTS core network

2002 ◽  
Author(s):  
T.S. Stergiou
Keyword(s):  
Protocol Stack ◽  
Core Network ◽  
Core Networks

Multicommodity-Based Delay Analysis for Heterogeneous Wireless Services in Core Network

2012 ◽  
Vol 198-199 ◽  
pp. 1733-1738
Author(s):  
Xiao Wei Qin ◽  
Feng Chen
Keyword(s):  
Access Network ◽  
Core Network ◽  
Wireless Applications ◽  
Core Networks ◽  
Service Delay ◽  
Wireless Access Network ◽  
The Cost ◽  
Mathematics Problem ◽  
Minimal Cost Flow

With the explosive growth of wireless applications, the subscribers’ requirements of QoS (Quality of Service) are increasing as well. In this paper, the upper bound of the tolerant delay of services in wireless access network is investigated, by mapping core network onto a cost-variable directed graph, where the cost is construed as the average service delay of the flows traveling in core network that depends on the current load. A multicommodity minimal cost flow mathematics problem is then derived and solved by Price-directive Decomposition and Lagrangian Relaxation. Simulations are carried out in two typical core networks and some valuable conclusions are gained.

Planning and Dimensioning of the 3G UMTS Core Networks

2012 ◽  
pp. 1-29
Author(s):  
Ye Ouyang ◽  
M. Hosein Fallah
Keyword(s):  
Mobile Communications ◽  
The United States ◽  
Network Size ◽  
Core Network ◽  
Core Networks ◽  
Mobile Operator ◽  
Universal Mobile Telecommunications System ◽  
Design Plan

The current literature provides many practical tools or theoretical methods to design, plan, and dimension Global System for Mobile Communications (GSM) and Universal Mobile Telecommunications System (UMTS) radio networks, but overlooks the algorithms of the network planning and dimensioning for core networks of GSM, UMTS, and IP Multimedia Subsystem (IMS). This chapter introduces an algorithm for traffic, bandwidth, and throughput dimensioning of the network entities in the UMTS core network. The analysis is based on the traffic and throughput generated or absorbed in the interfaces of the network entities in the UMTS core network. Finally a case study is provided to verify the algorithms created for UMTS core network. This chapter is aimed at helping UMTS network operators dimension an optimum network size and build an optimum network structure to deliver an optimum quality of service for users. The algorithms developed in the chapter have been successfully applied in dimensioning a nationwide UMTS network in North Africa and adopted in an optimization tool by a mobile operator in the United States in 2008-09.

A Dimensioning Study for UMTS Core Networks

2010 ◽  
Vol 6 (2) ◽  
pp. 19-45
Author(s):  
Ye Ouyang ◽  
M. Hosein Fallah
Keyword(s):  
Mobile Communications ◽  
The United States ◽  
Radio Networks ◽  
Core Network ◽  
Core Networks ◽  
Mobile Operator ◽  
Universal Mobile Telecommunications System ◽  
Design Plan

Current literature provides many practical tools and theoretical methods to design, plan, and dimension Global System for Mobile Communications (GSM) and Universal Mobile Telecommunications System (UMTS) radio networks but overlooks the algorithms of network planning and dimensioning for core networks of GSM, UMTS and IP Multimedia Subsystem (IMS). This paper introduces an algorithm for traffic, bandwidth and throughput dimensioning of the network entities in the UMTS core network, based on the traffic and throughput generated or absorbed in the interfaces of the network entities. A case study is provided to verify the algorithms created for UMTS core network. This paper helps UMTS network operators dimension and build an optimum network to deliver the best quality of service for users. The algorithms developed in the paper have been successfully applied in dimensioning a nationwide UMTS network in North Africa and adopted in an optimization tool by a mobile operator in the United States in 2008-2009.

scholarly journals On Bandwidth Tiered Service

2009 ◽  
Vol 17 (6) ◽  
pp. 1780-1793 ◽  
Author(s):  
George N. Rouskas ◽  
Nikhil Baradwaj
Keyword(s):  
Optimal Algorithm ◽  
Basic Unit ◽  
Cable Modem ◽  
Core Network ◽  
Service Levels ◽  
Core Networks ◽  
Optimal Service ◽  
Wide Range ◽  
Small Set ◽  
New Formulation

Many network operators offer some type of tiered service, in which users may select only from a small set of service levels (tiers). Such a service has the potential to simplify a wide range of core network functions, allowing the providers to scale their operations efficiently. In this work, we study a number of problem variants related to service tier selection. Our contributions include: (1) a faster algorithm for obtaining optimal service tiers; (2) a new formulation and optimal algorithm to optimize jointly the number and magnitude of each service tier; and (3) the concept of ??TDM emulation?? in which all service tiers are multiples of the same (software-configurable) bandwidth unit, and a suite of algorithms to select jointly the basic unit and service tiers. Our work provides a systematic framework for reasoning about and tackling algorithmically the general problem of service tier selection, and has applications to a number of networking contexts, including access networks (e.g., determining the tiers for ADSL, cable modem networks or PONs) and core networks (e.g., LSP sizing for MPLS networks).

SMARC

2021 ◽  
pp. 500-537
Author(s):  
Walaa F. Elsadek ◽  
Mikhail N. Mikhail
Keyword(s):  
Data Transfer ◽  
Mobile Ip ◽  
Service Level Agreement ◽  
High Mobility ◽  
Service Level ◽  
Wide Area ◽  
Core Network ◽  
Core Networks ◽  
Generation Network ◽  
4G Lte

Next-generation network promises to integrate cross-domain carriers; thus, infrastructure can be provided as a service. 5G-PPP's vision is directed toward solving existing 4G LTE mobility challenges that congest core networks, disrupt multimedia and data transfer in high mobility situations such as trains or cars. This research adopts 5G methodology by using software-defined networking (SDN) to propose a novel mobile IP framework that facilitates seamless handover, ensures session continuity in standard and wide area coverage, and extends residential/enterprise indoor services across carriers under service level agreement while ensuring effective offload mechanism to avoid core network congestion. Performance excels existing protocols in setup and handover delays such as eliminating out-band signaling in bearer setup/release and isolating users' packets in virtual paths. Handover across cities in wide area motion becomes feasible with lower latency than LTE handover inside city. Extending indoor services across carriers becomes equivalent to LTE bearer setup inside a single carrier's PDN.

Challenges of 5G Networking in Access and Core Networks

2015 ◽  
pp. 161-188 ◽  
Author(s):  
Vasilis Friderikos ◽  
Giorgos Chochlidakis ◽  
Hamid Aghvami ◽  
Mischa Dohler
Keyword(s):  
Mobile Communication ◽  
Management Strategies ◽  
Minimum Cost ◽  
Wireless Access ◽  
Core Network ◽  
Core Networks ◽  
The Core ◽  
Data Rates ◽  
Network Orchestration

The 5th Generation wireless and mobile communication is expected to provide ultrahigh data rates over wireless in the range of Gbps. But 5G will also be about providing consistency and supporting Quality of Experience in a personalized manner. We foresee an evolution in terms of physical layer enhancements to provide increased data rates, whereas a revolutionary step is required in terms of network orchestration and management to provide consistency and efficient utilization of the available resources at a minimum cost. In this chapter, key trends in wireless access technologies and thus-required network management strategies with respect to the core network are discussed. In the roadmap towards 5G networks, we envision an evolution of technologies for supporting Gbps wireless transmission, whereas a revolution would be required from the current modus operandi in the ways network orchestration and resource management is performed in these complex, hierarchical, heterogeneous and highly autonomous wireless networks.

scholarly journals Relocation and Network Turnover in Later Life: How Distance Moved and Functional Health Are Linked to a Changing Social Convoy

2018 ◽  
Vol 41 (1) ◽  
pp. 54-84 ◽  
Author(s):  
Philip J. Badawy ◽  
Markus H. Schafer ◽  
Haosen Sun
Keyword(s):  
Older Adults ◽  
Social Life ◽  
Late Life ◽  
Later Life ◽  
Network Size ◽  
Functional Health ◽  
Core Network ◽  
Long Distance ◽  
Core Networks ◽  
The Social

Life-course transitions among older adults often produce a reshuffling of social network members. Moving is a common experience for U.S. seniors, but relatively little is known about how core networks change amid the relocation process. Drawing on longitudinal data from the National Social Life, Health, and Aging Project, the present study examines how late-life moving is associated with changes to network size and the loss and gain of particular network members. We find that when older adults undertake a long-distance move, they tend to add more family to their core network—yet this is moderated by their initial level of functional health. Long-distance moves are also associated with losing nonkin members from the core network. These empirical patterns are interpreted in light of developmental perspectives on late-life relocation, continuity theory, and the social convoy model.

Migration Path Towards Cloud-Aware Core Networks

2013 ◽  
pp. 1-21
Author(s):  
Luis M. Contreras ◽  
Víctor López ◽  
Óscar González de Dios ◽  
Felipe Jiménez ◽  
Juan Rodríguez ◽  
...  
Keyword(s):  
Network Architecture ◽  
Distribution Networks ◽  
Cloud Services ◽  
Core Network ◽  
Network Resources ◽  
Core Networks ◽  
On Demand ◽  
Elastic Data ◽  
Multiple Network ◽  
Network Technologies

New services like Cloud Computing and Content Distribution Networks are changing telecom operator infrastructure. The creation of on-demand virtual machines or new services in the cloud reduces the utilization of resources among users but changes traditional static network provisioning. This chapter presents network architecture to deal with this new scenario called “Cloud-Aware Core Network.” A Cloud-Aware Core Network can request on-demand connectivity so the network is configured based on the changing demands. Secondly, the network has to dynamically control the network resources and to take into account cloud information in the network configuration process. The Cloud-Aware Core Network is based on an elastic data and control plane, which can interact with multiple network technologies and cloud services.

SMARC

2019 ◽  
pp. 93-131 ◽  
Author(s):  
Walaa F. Elsadek ◽  
Mikhail N. Mikhail
Keyword(s):  
Data Transfer ◽  
Mobile Ip ◽  
Service Level Agreement ◽  
High Mobility ◽  
Service Level ◽  
Wide Area ◽  
Core Network ◽  
Core Networks ◽  
Generation Network ◽  
4G Lte

Next-generation network promises to integrate cross-domain carriers; thus, infrastructure can be provided as a service. 5G-PPP's vision is directed toward solving existing 4G LTE mobility challenges that congest core networks, disrupt multimedia and data transfer in high mobility situations such as trains or cars. This research adopts 5G methodology by using software-defined networking (SDN) to propose a novel mobile IP framework that facilitates seamless handover, ensures session continuity in standard and wide area coverage, and extends residential/enterprise indoor services across carriers under service level agreement while ensuring effective offload mechanism to avoid core network congestion. Performance excels existing protocols in setup and handover delays such as eliminating out-band signaling in bearer setup/release and isolating users' packets in virtual paths. Handover across cities in wide area motion becomes feasible with lower latency than LTE handover inside city. Extending indoor services across carriers becomes equivalent to LTE bearer setup inside a single carrier's PDN.

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