43,591 research outputs found
Convergence of residential gateway technology
A new OSI-based model is described that can be used for the classification of residential gateways. It is applied to analyze current gateway solutions and draw evolutionary paths for the medium to long term. From this it is concluded that particularly set-top boxes and broadband modems, as opposed to game consoles and PCs, have a strong potential to evolve toward gateways that deliver network services to the home on all OSI layers, although they probably will not converge. In our model, we have not found any compelling reasons for the residential gateway industry to support concurrent multiple broadband access network connections on a single residential gateway in the near future
FTTx Access Networks: Technical Developments and Standardization
This chapter provides a review of factors driving technical development of broadband access networks, mostly toward higher bit rates and symmetrical services, together with a review of “fiber to the x” (FTTx) technologies for fixed access networks, including development and performance limitations of digital subscriber line (DSL) systems using twisted-pair copper cables, as well as fiber to the home systems. Characteristics and standardization of these systems are presented, together with a review of the two main competing broadband technologies: Data over cable service interface specification (DOCSIS) in coaxial cable TV networks and the 4G and 5G wireless networks. Additionally, a short list of recent developments in passive technologies (fibers, cables, and connectors) is included. Finally, the issues related to dismantling of the traditional copper telephone network and ensuring continuity of voice services in emergency situations are analyzed
Future broadband access network challenges
Copyright @ 2010 IEEEThe optical and wireless communication systems convergence will activate the potential capacity of photonic technology for providing the expected growth in interactive video, voice communication and data traffic services that are cost effective and a green communication service. The last decade growth of the broadband internet projects the number of active users will grow to over 2 billion globally by the end of 2014. Enabling the abandoned capacity of photonic signal processing is the promising solution for seamless transportation of the future consumer traffic demand. In this paper, the future traffic growth of the internet, wireless worldwide subscribers, and the end-users during the last and next decades is investigated. The challenges of the traditional access networks and Radio over Fiber solution are presented
The End of Net Neutrality
In 2005, the FCC changed the competitive landscape of the high-speed Internet access industry by classifying both DSL and cable modem service as information services. While many hail this move as a victory for competition and free markets, others fear the ruling could jeopardize the future of the Internet. This iBrief examines the potential end of net neutrality and concludes that new federal regulations are unnecessary because antitrust laws and a competitive marketplace will provide consumers with sufficient protection
The State of Network Neutrality Regulation
The Network Neutrality (NN) debate refers to the battle over the design of a regulatory framework for preserving the Internet as a public network and open innovation platform. Fueled by concerns that broadband access service providers might abuse network management to discriminate against third party providers (e.g., content or application providers), policymakers have struggled with designing rules that would protect the Internet from unreasonable network management practices. In this article, we provide an overview of the history of the debate in the U.S. and the EU and highlight the challenges that will confront network engineers designing and operating networks as the debate continues to evolve.BMBF, 16DII111, Verbundprojekt: Weizenbaum-Institut fĂĽr die vernetzte Gesellschaft - Das Deutsche Internet-Institut; Teilvorhaben: Wissenschaftszentrum Berlin fĂĽr Sozialforschung (WZB)EC/H2020/679158/EU/Resolving the Tussle in the Internet: Mapping, Architecture, and Policy Making/ResolutioNe
After Broadband: A Study of Organizational Use of Broadband in Southwest Alaska
The purpose of this research was to gain a preliminary understanding of how organizations
including large and small businesses, Native corporations and organizations, and local and
regional governments are using broadband that is now available in much of southwest Alaska.
To learn about community access to broadband, interviews were also conducted with library and
school staff in communities where broadband had been installed under the OWL (Online with
Libraries) program. Further, the study identifies research from other sources that could help to
predict what socio-economic impacts the availability and adoption of broadband may have in
rural Alaska.
Financial institutions use online connections for teller services and credit and debit card
processing, and stated that more people in rural communities now have debit cards that they can
use for online purchases and bill paying. Large retailers use online services for payroll, for pointof-sale
(POS) transactions, and online ordering. Seafood processors rely heavily on connectivity
with their head offices (generally in the lower 48) for administrative services including payroll,
accounting, shipping and receiving, purchasing, and ERP (enterprise resource planning), and
access data base software to track fish tickets. Seafood processors also provide Internet access
for their employees, most of whom are seasonal and from other states or countries.
Tourism businesses use broadband for online reservation systems and for guests, who
increasingly demand connectivity even for remote vacations. Village corporations and tribal
councils use online services to help their residents obtain hunting and fishing licenses and fishing
permits, to learn about funding opportunities, and to file reports on grants.
Local Governments connect online for interoffice communications and for payroll and other
administrative functions. Other online applications and services include providing remote
desktop access from other agency sites, use of online tools for land management and mapping,
training including webinars for workforce development, and providing access to social services
for clients. An economic development organization sends newsletters to communities
electronically and packets of documents to its board members rather than relying on fax or
courier.
Websites are important for tourism-related businesses to advertise and promote their
businesses and for nonprofits and local governments to provide information about their services.
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Broadband now plays many roles in rural education. Most students are required to use the
Internet for class assignments. High school students can connect to classes in advanced subjects
in other communities, and may complete online courses for college credit. Libraries remain
important locations for community access, with residents going online to connect with friends on
Facebook, as well as to download content for e-books, file income tax, and apply for jobs and
government benefits. School and library Wi-Fi provides access inside and near the buildings for
residents with smartphones.
Despite enthusiasm for broadband and the adoption of many broadband-based applications
and services, most organizations interviewed identified problems with broadband, particularly
with the pricing, stating that the terrestrial broadband network is too costly for them to take full
advantage of online services and applications.
While the scope of this study was too limited to estimate long-term benefits, it found that
broadband is highly valued and increasingly important to businesses and nonprofit organizations
and local governments in southwest Alaska. Broadband helps businesses to be more efficient in
their operations and to extend their reach to new customers and suppliers. It also helps to
improve the effectiveness of public sector services such as those provided by borough and city
governments and extends access to education and training. Broadband is also likely to be an
important component of strategies to develop ecotourism and other ecosystem services.Support for this research came from Connect Alaska with funding from the National
Telecommunications and Information Administration (NTIA) for the work of the State of Alaska
Broadband Task Force, with additional support from GCI.Executive Summary / Introduction / Research Methodology / Technologies and Technical Support / Broadband Applications / Education and Community Access / Health Care / Benefits of Broadband in Southwest Alaska / Problems and Limitations / Potential Long-Term Social and Economic Impacts / Conclusions and Recommendations / Referemce
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Cloned Access Point Detection and Point Detection and Prevention Mechanism in IEEE 802.11 Wireless Mesh Networks
IEEE 802.11 Wireless Mesh Network (WMN) is an
emerging low cost, decentralized community-based broadband technology, which is based on self-healing and multi-hop deployment of Access Points (APs), so that to increase the coverage area with maximum freedom to end-users to join or leave the
network from anywhere anytime having low deployment and maintenance cost. Such kind of decentralized structure and multihop architecture increases its security vulnerabilities especially
against the APs. One of such possible security attack is the placement of cloned AP to create serious performance degradation in IEEE 802.11 WMN. In this paper, we discuss the different
security vulnerabilities of AP in IEEE 802.11 WMN along with possible research directions. We also propose a mutual cooperation mechanism between the multi-hop APs and serving gateway so that
to detect and prevent the possibility of cloned AP. In this way the large scale exploitation of IEEE 802.11 WMN can be eliminated
40 Gbps Access for Metro networks: Implications in terms of Sustainability and Innovation from an LCA Perspective
In this work, the implications of new technologies, more specifically the new
optical FTTH technologies, are studied both from the functional and
non-functional perspectives. In particular, some direct impacts are listed in
the form of abandoning non-functional technologies, such as micro-registration,
which would be implicitly required for having a functioning operation before
arrival the new high-bandwidth access technologies. It is shown that such
abandonment of non-functional best practices, which are mainly at the
management level of ICT, immediately results in additional consumption and
environmental footprint, and also there is a chance that some other new
innovations might be 'missed.' Therefore, unconstrained deployment of these
access technologies is not aligned with a possible sustainable ICT picture,
except if they are regulated. An approach to pricing the best practices,
including both functional and non-functional technologies, is proposed in order
to develop a regulation and policy framework for a sustainable broadband
access.Comment: 10 pages, 6 Tables, 1 Figure. Accepted to be presented at the
ICT4S'15 Conferenc
Denial of service attacks and challenges in broadband wireless networks
Broadband wireless networks are providing internet and related services to end users. The three most important broadband wireless technologies are IEEE 802.11, IEEE 802.16, and
Wireless Mesh Network (WMN). Security attacks and
vulnerabilities vary amongst these broadband wireless networks because of differences in topologies, network operations and physical setups. Amongst the various security risks, Denial of Service (DoS) attack is the most severe security threat, as DoS can compromise the availability and integrity of broadband
wireless network. In this paper, we present DoS attack issues in broadband wireless networks, along with possible defenses and future directions
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Common security issues and challenges in wireless sensor networks and IEEE 802.11 wireless mesh networks
Both Wireless Mesh Network (WMN) and Wireless Sensor Network (WSN) are multi-hop wireless networks. WMN is an emerging community based integrated broadband wireless network which ensures high bandwidth ubiquitous internet provision to users, while, WSN is application specific and ensures large scale real-time data processing in complex environment. Both these wireless networks have some common vulnerable features which may increase the chances of different sorts of security attacks. Wireless sensor nodes have computation, memory and power limitations, which do not allow for implementation of complex security mechanism. In this paper, we discuss the common limitations and vulnerable features of WMN and WSN, along with the associated security threats and possible countermeasures. We also propose security mechanisms keeping in view the architecture and limitations of both. This article will serve as a baseline guide for the new researchers who are concern with the security aspects of WMN and WSN
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