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About 10,000 papers for “Access network”

Access Network

Rainer Baumann, Olga Bondareva, Simon Heimlicher et al. · 2013

Abstract — Wireless mesh networks are cost-efficient means to provide ubiquitous Internet access. For building large-scale wireless mesh networks, multiple access networks are joined together into one large network. In such large networks, nodes have to communicate with the Internet via multiple access gateways. The problem in such scenarios is how to make mesh nodes aware of the gateway over which data is sent towards the Internet. The goal of this paper is to propose a routing protocolindependent method that allows nodes to (i) determine when they are switching the access network; (ii) to support switching of access networks; and (iii) to support multihoming.

Cited by 0

Optical Access Network Evolution Trends：Software Defined Optical Access Network

Rentao Gu · SHILAP Revista de lepidopterología · 2015

The rapid growth of new services and emerging network scenarios has serious impact on the existing network infrastructure，and it is an inevitable trend to build a new，high-speed and efficient access network architecture.The challenges faced by the existing network were analyzed，and it was pointed out that high-speed broadband access，efficient resource utilization，support for heterogeneous resource control would be future trends in the evolution of optical access networks.Then the access network development was recalled，the overall architecture of software-defined optical access network was described，SDN idea and OLT pooling technology were introduced into optical access network，and the major key technologies were analyzed，including the flexible programmable optical layer techniques，fine flow table forwarding，control layer virtualization，and etc.Several typical application scenarios suitable for software-defined optical access network were also presented.All of these indicate that the research and development on software-defined optical access network will meet current challenges and ultimately be helpful to achieve the end-to-end flexible control in the entire network.

Cited by 0Open access

Network access control

Tomáš Kalina · Digital Repository (National Repository of Grey Literature) · 2010

This bachelor's work discusses IT issues of network access control. The first part deals with the theoretical background of network access control. There are explained various ways of authenticating and authorization users. Thanks these function, it is possible to prevent unauthorized persons access to computer networks. Knowledge of these technologies is essential for understanding the next part of the work. The remaining part of the work is concerned with recommendations and draft network access control for various model situations, especially for the college of University of Economics, Prague. Specific examples are given for network infrastructure based on device of the 3com company.

Cited by 0

Network access techniques

Robert Rosenthal · 1976

The computer industry's ability to serve a diverse and expanding user community is evidenced by the rapid growth of computer network services. Computer service providers design and market their own offerings as they deem best, given their own market and their own set of resources. This has led to a proliferation of similar resources requiring different user access procedures. With emphasis on currently operating and planned systems that assist users in accessing available network services, this paper identifies the techniques used in network access devices. By examining these devices, the trend toward improving the interface between the user and the computer is brought more clearly into focus and up to date.

Cited by 11Open access

Network Access Protection

2018

In order to function effectively, a network needs to enforce and provide proper models for network security. One specic aspect of network security, related to network, is access protection. In this chapter, we examine the challenges associated with protecting access to a computer network and the different approaches that can be used to address the various threats to a network. This chapter provides a review of common types of access control models, adversary models for network access control, and the methods commonly used to provide network access protection.

Cited by 1

Metropolitan Access Network

Slavko Šarić, Gabrijela Gorinšek-Halužan, Ivan Matković · SHILAP Revista de lepidopterología · 2003

The optical fibre is the highest quality transmission mediumfor broadband services, and therefore the new access cablenetwork has to be realized to the greatest extent and as closeas possible to the subscriber by means of the optical fibre cables,in accordance with the possibilities of the telecommunicationoperator. The development of digital technology in commutations,supported by the increasingly powerful systems of processorcontrol, development of optical communications andtransport technologies in the framework of SDH concepts, arereflected on the access telecommunication networks of the urbanareas. Urban areas are the most profitable regions in telecommunications.In planning of urban optical networks the fact should betaken as a guideline that only a well-organised urban networkwill allow high quality of service provision of the leased cablesto the end points of business customers.Business customers have greater requirements for the networkreliability, flexibility and maintainability, for the sake ofundisturbed telecommunication traffic.The optical medium based technology- FITL (fiber in theloop), provides almost limitless upgrading of the system regardingthe transmission bandwidths, as well as adaptation to allthe future customers' requirements.Considering the increase in the price of installing the coppercables, the prices of electronics and optical components arecontinuously falling. The application of the optical medium isincreasing and becoming more cost-effective, and due to higherreliability of the optical transmission systems the maintenancecosts are reduced.

Cited by 0Open access

Access network optimization

Marcel T. Kalsch, Katrin Tschirpke · 2014

In this work we present a mathematical optimization model for planning the deployment of fast internet technology in a local exchange area. The locations of the new multi-service access nodes (MSANs) and the connections between these nodes and the main distribution frame (hub) are planned simultaneously. Additionally, the connection of several classical nodes to the new MSAN locations via dedicated copper cables is explicitly allowed in the model. The optimization model minimizes the total of node costs and connection costs. The obtained network can be used to develop two heuristics for the project roll-out. Given a limited capital as many customers as possible should be connected to the new nodes. Another possibility is to minimize the total costs such that a minimum customer coverage is satisfied.

Cited by 1

Access Network Architecture

Enjie Liu, Guillaume Villemaud · 2009

This chapter contains sections titled: Overview GAN-Based Femtocell-to-Core Network Connectivity 3GPP Iuh (Iu-Home) for Home NodeB Evolution to IMS/HSPA+/LTE Architecture with IMS Support References

Cited by 0

(GIgapon Access NeTwork)

2011

It is expected that the requirements for access networks will change in the future due to the increase in bandwidth demand, due to the shift to packet based services and due to the drive to implement a full service network. Optical access networks are a logical implementation of these requirements. Of all the access infrastructure available, optical fiber has the largest bandwidth potential. In order to mitigate the network costs, an infrastructure whereby fiber is shared amongst users is clearly attractive. Many people in the industry believe PON (Passive Optical Network) technology will create practical implementation architectures for future access networks. PON was standardized by the ITU-T in 1998 under recommendation G.983. The bandwidth of the standardized solution is limited to 622 Mbit/s (shared over all users) and it is ATM based, which is excellent to satisfy existing demands (including QoS requirements). To fulfill the future access network demand there is a need for higher bitrate PON systems, probably that are more packet oriented (see Figure 1). This is the subject of the new project GIANT. A novel access network based on a Passive Optical Network architecture at Gbit/s bitrate and packet oriented is being developed in the frame of a European IST Project (Fifth Framework Program for Information Society Technologies). This paper describes the motivation for the project GIANT (GigaPON Access Network), the targeted innovations and the necessary tasks to reach the final goal: a service demonstrator working at Gbit/s speed.

Cited by 0

Network Access Control

Ben Herzberg, Yoav Cohen · Apress eBooks · 2021

Network access control is quite a blunt tool, which is not necessarily a bad thing. What this means is that you want to place access controls to your data warehouse based on the network origin of the traffic. This can be a quick and effective way to reduce security risks, as well as sometimes being part of compliance requirements (to have, as well as show that you have network access policies placed on top of your data access).

Cited by 0

Network Access Procedure

2015

The Texas A&M University-Kingsville (TAMUK) network infrastructure is provided as a central utility for all users of University Information Resources. It is important that the infrastructure, which includes cabling and the associated wired and wireless equipment, continues to develop with sufficient flexibility to meet (TAMUK) demands while at the same

Cited by 0

Network Access Control

Cizelj, Anej · Repository of the University of Ljubljana (University of Ljubljana) · 2025

V diplomskem delu je obravnavan nadzor omre~nega dostopa (NAC), ki predstavlja klju no komponento sodobne kibernetske varnosti. NAC omogo a organizacijam nadzor nad dostopom naprav in uporabnikov do omre~ij ter uveljavljanje varnostnih pravilnikov, s imer zmanjbuje tveganja nepooblab enih dostopov in zagotavlja skladnost z varnostnimi standardi. Diplomsko delo se osredoto a na sodobne implementacije NAC, vklju no z integracijo naprav IoT in obla nimi rebitvami. Podrobno so analizirani arhitekturni elementi NAC, ter razumevanje novih trendov. Zaklju ek diplomskega dela poudarja pomen celostnega pristopa k implementaciji NAC ter zagotavljanja stalnih posodobitev zaradi spreminjajo e se narave kibernetskih gro~enj.

Cited by 0Open access

Optical-Access Network

John Edward Mitchell, Darren P. Shea, John E. Mitchell · 2016

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Cited by 0