303 research outputs found
ACUTA Journal of Telecommunications in Higher Education
In This Issue
President\u27s Message
From the ACUTA CEO
RIP for TDM
IPTV: The Future of Gable TV
Not All SIP Trunking ls Problem Free
lnterview: Four Campuses Look at lPv6, SIB and More
lPv6: What You Don\u27t Know CAN Hurt You
Moving from the Old to the New
2013 Award Winners
lnstitutional Excellence Award Honorable Mention: Abilene Christian University Virtual La
The Penetration of Internet of Things in Robotics: Towards a Web of Robotic Things
As the Internet of Things (IoT) penetrates different domains and application
areas, it has recently entered also the world of robotics. Robotics constitutes
a modern and fast-evolving technology, increasingly being used in industrial,
commercial and domestic settings. IoT, together with the Web of Things (WoT)
could provide many benefits to robotic systems. Some of the benefits of IoT in
robotics have been discussed in related work. This paper moves one step
further, studying the actual current use of IoT in robotics, through various
real-world examples encountered through a bibliographic research. The paper
also examines the potential ofWoT, together with robotic systems, investigating
which concepts, characteristics, architectures, hardware, software and
communication methods of IoT are used in existing robotic systems, which
sensors and actions are incorporated in IoT-based robots, as well as in which
application areas. Finally, the current application of WoT in robotics is
examined and discussed
Internet Predictions
More than a dozen leading experts give their opinions on where the Internet is headed and where it will be in the next decade in terms of technology, policy, and applications. They cover topics ranging from the Internet of Things to climate change to the digital storage of the future. A summary of the articles is available in the Web extras section
National broadband strategy. Final report
Julkaisu on englanninkielinen versio julkaisusta 3/2007 Kansallinen laajakaistastrategia. Loppuraportti
Internet2
Requires RealPlayer to view.The University Archives has determined that this item is of continuing value to OSU's history.Presentation at Technology for the Rest of Us: What Every Librarian Should Understand about the Technologies that Affect Us, May 24-27, 2004.This project is funded in part through an Institute of Museum and Library Services LSTA grant awarded by the State Library of Ohi
Methods for revealing and reshaping the African Internet Ecosystem as a case study for developing regions: from isolated networks to a connected continent
MenciĂłn Internacional en el tĂtulo de doctorWhile connecting end-users worldwide, the Internet increasingly promotes local development
by making challenges much simpler to overcome, regardless of the field in which it is
used: governance, economy, education, health, etc. However, African Network Information Centre
(AfriNIC), the Regional Internet Registry (RIR) of Africa, is characterized by the lowest Internet
penetration: 28.6% as of March 2017 compared to an average of 49.7% worldwide according
to the International Telecommunication Union (ITU) estimates [139]. Moreover, end-users experience
a poor Quality of Service (QoS) provided at high costs. It is thus of interest to enlarge the
Internet footprint in such under-connected regions and determine where the situation can be improved.
Along these lines, this doctoral thesis thoroughly inspects, using both active and passive
data analysis, the critical aspects of the African Internet ecosystem and outlines the milestones of
a methodology that could be adopted for achieving similar purposes in other developing regions.
The thesis first presents our efforts to help build measurements infrastructures for alleviating
the shortage of a diversified range of Vantage Points (VPs) in the region, as we cannot improve
what we can not measure. It then unveils our timely and longitudinal inspection of the
African interdomain routing using the enhanced RIPE Atlas measurements infrastructure for filling
the lack of knowledge of both IPv4 and IPv6 topologies interconnecting local Internet Service
Providers (ISPs). It notably proposes reproducible data analysis techniques suitable for the treatment
of any set of similar measurements to infer the behavior of ISPs in the region. The results
show a large variety of transit habits, which depend on socio-economic factors such as the language,
the currency area, or the geographic location of the country in which the ISP operates.
They indicate the prevailing dominance of ISPs based outside Africa for the provision of intracontinental
paths, but also shed light on the efforts of stakeholders for traffic localization.
Next, the thesis investigates the causes and impacts of congestion in the African IXP substrate,
as the prevalence of this endemic phenomenon in local Internet markets may hinder their
growth. Towards this end, Ark monitors were deployed at six strategically selected local Internet
eXchange Points (IXPs) and used for collecting Time-Sequence Latency Probes (TSLP) measurements
during a whole year. The analysis of these datasets reveals no evidence of widespread
congestion: only 2.2% of the monitored links experienced noticeable indication of congestion,
thus promoting peering. The causes of these events were identified during IXP operator interviews,
showing how essential collaboration with stakeholders is to understanding the causes of performance degradations.
As part of the Internet Society (ISOC) strategy to allow the Internet community to profile
the IXPs of a particular region and monitor their evolution, a route-collector data analyzer was
then developed and afterward, it was deployed and tested in AfriNIC. This open source web
platform titled the “African” Route-collectors Data Analyzer (ARDA) provides metrics, which
picture in real-time the status of interconnection at different levels, using public routing information
available at local route-collectors with a peering viewpoint of the Internet. The results
highlight that a small proportion of Autonomous System Numbers (ASNs) assigned by AfriNIC
(17 %) are peering in the region, a fraction that remained static from April to September 2017
despite the significant growth of IXPs in some countries. They show how ARDA can help detect
the impact of a policy on the IXP substrate and help ISPs worldwide identify new interconnection
opportunities in Africa, the targeted region.
Since broadening the underlying network is not useful without appropriately provisioned services
to exploit it, the thesis then delves into the availability and utilization of the web infrastructure
serving the continent. Towards this end, a comprehensive measurement methodology
is applied to collect data from various sources. A focus on Google reveals that its content infrastructure
in Africa is, indeed, expanding; nevertheless, much of its web content is still served
from the United States (US) and Europe, although being the most popular content source in many
African countries. Further, the same analysis is repeated across top global and regional websites,
showing that even top African websites prefer to host their content abroad. Following that, the
primary bottlenecks faced by Content Providers (CPs) in the region such as the lack of peering
between the networks hosting our probes and poorly configured DNS resolvers are explored to
outline proposals for further ISP and CP deployments.
Considering the above, an option to enrich connectivity and incentivize CPs to establish a
presence in the region is to interconnect ISPs present at isolated IXPs by creating a distributed
IXP layout spanning the continent. In this respect, the thesis finally provides a four-step interconnection
scheme, which parameterizes socio-economic, geographical, and political factors using
public datasets. It demonstrates that this constrained solution doubles the percentage of continental
intra-African paths, reduces their length, and drastically decreases the median of their Round
Trip Times (RTTs) as well as RTTs to ASes hosting the top 10 global and top 10 regional Alexa
websites. We hope that quantitatively demonstrating the benefits of this framework will incentivize
ISPs to intensify peering and CPs to increase their presence, for enabling fast, affordable,
and available access at the Internet frontier.Programa Oficial de Doctorado en IngenierĂa TelemáticaPresidente: David Fernández Cambronero.- Secretario: Alberto GarcĂa MartĂnez.- Vocal: Cristel Pelsse
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