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.

Hybrid Simulated-Emulated Platform – HySEP

2016 ◽  
pp. 380-409
Author(s):  
Igor Bisio ◽  
Stefano Delucchi ◽  
Fabio Lavagetto ◽  
Mario Marchese ◽  
Giancarlo Portomauro ◽  
...  
Keyword(s):  
Quality Of Service ◽  
Traffic Control ◽  
Low Cost ◽  
Access Network ◽  
Wireless Access ◽  
Core Network ◽  
The Core ◽  
Wireless Access Network ◽  
Real Traffic

The main contribution of this chapter is the description of HySEP, Hybrid Simulated-Emulated Platform, developed by the authors and aimed at simulating/emulating heterogeneous networks to validate and test algorithms for traffic control and Quality of Service (QoS) assurance. Main features of HySEP are the appropriate level of accuracy and detail reached by using equipments available in most communication research laboratories, at low cost, and the easy configurability. HySEP is divided into three parts connected each others: the emulated core network; the simulated wireless access network communicating with the core network; and the real remote host. The overall platform is able to handle real traffic flows and overcomes the limitations introduced by other network simulators. HySEP is characterized by remarkable versatility and wide applicability to support the validation of different algorithms.

scholarly journals Optical Transport Network to support Digital Communications

2021 ◽  
Vol 12 (4) ◽  
pp. 1418-1433
Author(s):  
Marco Rosario Villareal, Et. al.
Keyword(s):  
Access Network ◽  
Data Communication ◽  
Transport Network ◽  
Telecommunication Services ◽  
Optical Transport Network ◽  
Optimum Speed ◽  
Wireless Access Network ◽  
Adequate Quality ◽  
Optical Transport

The objective of this work is to propose a solution to the problem of the lack of telecommunication services, with adequate quality of service and coverage, in the town of Choclococha, Huancavelica-Peru. For this purpose, the design and evaluation of an optical link as a backbone network and a wireless access network is presented. It is an applied and experimental research in which performance parameters were evaluated. The independent variable is the optical transport network and the dependent variable is data communication. The latter is defined by two indicators: throughput and signal reception power at the users. Both indicators were measured in a sample of the population, obtaining results that were validated with respect to the expected values according to specifications and regulations. Thus, the measured throughput exceeds the 40% data rate guaranteed by the telecommunications operator. As for the reception power, it exceeds the sensitivity level of the receiving equipment. Therefore, it is concluded that the proposed solution supports communications with optimum speed and coverage.

Quality of Service Issues in Micro Mobility Enabled Wireless Access Networks

2010 ◽  
pp. 238-256
Author(s):  
A. Dev Pragad ◽  
Vasilis Friderikos ◽  
A. Hamid Aghvami
Keyword(s):  
Quality Of Service ◽  
Mobile Networks ◽  
Mobility Management ◽  
Access Network ◽  
Wireless Access ◽  
Wireless Access Networks ◽  
Handover Delay ◽  
Wireless Access Network ◽  
Micro Mobility

Provision of Quality of Service (QoS) and Micro Mobility management is imperative to delivering content seamlessly and efficiently to the next generation of IP based mobile networks. Micro mobility management ensures that during handover the disruption caused to the live sessions are kept to a minimum. On the other hand, QoS mechanisms ensure that during a session the required level of service is maintained. Though many micro mobility and QoS mechanisms have been proposed to solve their respective aspects of network operation, they often have interaction with each other and can lead towards network performance degradation. This chapter focuses specifically on the issues of interaction between micro mobility and QoS mechanisms. Special focus is given to the relatively unexplored area of the impact Mobility Agents can have on the wireless access network. Mobility Agents play a central role in providing micro mobility support. However, their presence (location and number) can affect the routing as well as the handover delay. Through an example network this issue is highlighted. Following which an optimization framework is proposed to deploy Mobility Agents optimally within a micro mobility enabled wireless access network to minimise both the routing overhead as well as the handover delay. Results show considerable improvements in comparison to deploying the Mobility Agents arbitrarily.

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.

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.

Mapping Wireless Access Network Traffic to Multiservice Provisioning Platform

2006 ◽  
Vol 10 (2) ◽  
pp. 201-206
Author(s):  
Sandisiwe N. Ncemane ◽  
◽  
H. Anthony Chan ◽  
Tope R. Karem ◽  
Keyword(s):  
Network Design ◽  
Network Traffic ◽  
Architectural Design ◽  
Access Network ◽  
Developing Nations ◽  
Wireless Access ◽  
Core Network ◽  
Rural And Urban ◽  
Wireless Access Network ◽  
Voice Traffic

Wireless access is needed to serve rural and urban sectors in the developing nations, while simultaneously encompassing both data and voice traffic in the same core network. We propose an architectural design of Multiservice Provisioning Platform (MSPP) for WiMAX over SONET/SDH, which involves interworking conventional technologies to deliver a solution that caters to unique situations that favor wireless access network over fully cabled systems. It consists of Wireless Access Network design, 2-way interlinking section, and the MSPP – optical core Network. It enhances the versatility of the MSPP and uses the SONET/SDH core network efficiently.[1]

A Model for Providing Mobile Multimedia Services Over 4G Networks

2010 ◽  
pp. 523-533
Author(s):  
Kashinath Basu
Keyword(s):  
Mobile Networks ◽  
Significant Proportion ◽  
Access Network ◽  
Core Network ◽  
Research Activity ◽  
Multimedia Services ◽  
The Core ◽  
Traffic Characteristics ◽  
4G Networks

A significant proportion of the traffic on the 4th generation of mobile networks (4G) will be interactive multimedia traffic. This chapter presents the development and evaluation of an edge device model for the lu interface of a 4G network for mapping the Quality of Service (QoS) requirements and traffic characteristics of aggregated IP traffic flows belonging to multiple classes of continuous media (Audio and Video) sources and data classes from the core network onto a single ATM Virtual Channel (VC) at the access network. This model was developed as part of a wider range of research activity focused on supporting QoS in future mobile networks.

QoS Architecture of WiMAX

2010 ◽  
pp. 42-56
Author(s):  
Rath Vannithamby ◽  
Muthaiah Venkatachalam
Keyword(s):  
Access Network ◽  
Radio Link ◽  
The Novel ◽  
Qos Provisioning ◽  
Broadband Wireless ◽  
Traffic Demand ◽  
Air Interface ◽  
Wireless Access Network ◽  
End To End

WiMAX technology, based on the IEEE 802.16 standard, is a promising broadband wireless technology for the upcoming 4G network. WiMAX has excellent QoS mechanisms to enable differentiated Quality of service of various applications. QoS in broadband wireless access network such as WiMAX is a difficult and complicated task, as it adds unpredictable radio link, user and traffic demand. WiMAX supports end-to-end QoS provisioning to allow various applications and services. This chapter aims to provide a detailed overview of the QoS in WiMAX, the current and the future. Various air-interface and network mechanisms that enable the end-to-end QoS provisioning are then discussed. Finally, the novel mechanisms to improve the QoS provisioning in the next generation WiMAX system are also discussed.

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