5,260 research outputs found
Characterizing and Improving the Reliability of Broadband Internet Access
In this paper, we empirically demonstrate the growing importance of
reliability by measuring its effect on user behavior. We present an approach
for broadband reliability characterization using data collected by many
emerging national initiatives to study broadband and apply it to the data
gathered by the Federal Communications Commission's Measuring Broadband America
project. Motivated by our findings, we present the design, implementation, and
evaluation of a practical approach for improving the reliability of broadband
Internet access with multihoming.Comment: 15 pages, 14 figures, 6 table
Recommended from our members
E-government adoption in Qatar: An investigation of the citizens' perspective
Electronic government (e-government) initiatives are in their early stages in many developing countries and faced
with various issues pertaining to their implementation, adoption and diffusion. Like many other developing
countries, the e-government initiative in the state of Qatar has faced a number of challenges since its inception in
2000. Using a survey based study this paper describes citizensâ behavioural intention and adoption in terms of
applying and utilising the Unified Theory of Acceptance and Use of technology (UTAUT) model to explore the
adoption and diffusion of e-government services in the state of Qatar. A regression analysis was conducted to
examine the influence of e-government adoption factors and the empirical data revealed that performance
expectancy, effort expectancy, and social influences determine citizensâ behavioural intention towards e-government.
Moreover, facilitating conditions and behavioural intention were found to determine citizensâ use of e-government
services in the state of Qatar. Implications for practice and research are discussed
An Economic Perspective on a U.S. National Broadband Plan
This paper responds to the U.S. Federal Communications Commissionâs request for guidance in designing a national broadband plan. We argue that the U.S. market for Internet services is working well overall, as evidenced by nearly ubiquitous coverage, rapid adoption, large investments, and increasing speeds. Still, the market is not working well for all people in all places, and we offer a framework for considering policies intended to mitigate those issues.
Measuring the Prevalence of WiFi Bottlenecks in Home Access Networks
As broadband Internet speeds continue to increase, the home wireless ("WiFi")
network may more frequently become a performance bottleneck. Past research, now
nearly a decade old, initially documented this phenomenon through indirect
inference techniques, noting the prevalence of WiFi bottlenecks but never
directly measuring them. In the intervening years, access network (and WiFi)
speeds have increased, warranting a re-appraisal of this important question,
particularly with renewed private and federal investment in access network
infrastructure. This paper studies this question, developing a new system and
measurement technique to perform direct measurements of WiFi and access network
performance, ultimately collecting and analyzing a first-of-its-kind dataset of
more than 13,000 joint measurements of WiFi and access network throughputs, in
a real-world deployment spanning more than 50 homes, for nearly two years.
Using this dataset, we re-examine the question of whether, when, and to what
extent a user's home wireless network may be a performance bottleneck,
particularly relative to their access connection. We do so by directly and
continuously measuring the user's Internet performance along two separate
components of the Internet path -- from a wireless client inside the home
network to the wired point of access (e.g., the cable modem), and from the
wired point of access to the user's ISP. Confirming and revising results from
more than a decade ago, we find that a user's home wireless network is often
the throughput bottleneck. In particular, for users with access links that
exceed 800~Mbps, the user's home wireless network was the performance
bottleneck 100% of the time
Factors affecting e-government adoption in the state of Qatar
Electronic government (e-government) initiatives are in their early stages in many developing countries and faced with various issues pertaining to their implementation, adoption and diffusion. Although e-government has increased transparency and improved communication and access to information for citizens, digital diffusion of information is often achieved at high cost to government agencies. Conversely, citizensâ adoption of e-government services has been less than satisfactory in most countries. While studies by researchers continue to outline the most salient adoption constructs, as well as various frameworks and models for understanding adoption, research by independent consultancy/research organisations has produced a host of statistics and league tables of good and bad practices of service delivery. Like many other developing countries, the e-government initiative in the state of Qatar has faced a number of challenges since its inception in 2000. This study utilises the Unified Theory of Acceptance and Use of Technology (UTAUT) to explore the adoption of e-government services in the state of Qatar. 1179 citizens were surveyed to collect primary data. A regression analysis was conducted to examine the influence of the factors adapted from the UTAUT on e-government adoption. Reliability test reported values of the various constructs vary between (0.74) and (0.91). The findings reveal that effort expectancy and social influences determine citizensâ behavioural intention towards e-government. Additionally, facilitating conditions and behavioural intention were found to determine citizensâ use of e-government services in Qatar. Implications for practice and research are discussed
LTE Spectrum Sharing Research Testbed: Integrated Hardware, Software, Network and Data
This paper presents Virginia Tech's wireless testbed supporting research on
long-term evolution (LTE) signaling and radio frequency (RF) spectrum
coexistence. LTE is continuously refined and new features released. As the
communications contexts for LTE expand, new research problems arise and include
operation in harsh RF signaling environments and coexistence with other radios.
Our testbed provides an integrated research tool for investigating these and
other research problems; it allows analyzing the severity of the problem,
designing and rapidly prototyping solutions, and assessing them with
standard-compliant equipment and test procedures. The modular testbed
integrates general-purpose software-defined radio hardware, LTE-specific test
equipment, RF components, free open-source and commercial LTE software, a
configurable RF network and recorded radar waveform samples. It supports RF
channel emulated and over-the-air radiated modes. The testbed can be remotely
accessed and configured. An RF switching network allows for designing many
different experiments that can involve a variety of real and virtual radios
with support for multiple-input multiple-output (MIMO) antenna operation. We
present the testbed, the research it has enabled and some valuable lessons that
we learned and that may help designing, developing, and operating future
wireless testbeds.Comment: In Proceeding of the 10th ACM International Workshop on Wireless
Network Testbeds, Experimental Evaluation & Characterization (WiNTECH),
Snowbird, Utah, October 201
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