52,446 research outputs found
A Software Radio Challenge Accelerating Education and Innovation in Wireless Communications
This Innovative Practice Full Paper presents our methodology and tools for
introducing competition in the electrical engineering curriculum to accelerate
education and innovation in wireless communications. Software radio or
software-defined radio (SDR) enables wireless technology, systems and standards
education where the student acts as the radio developer or engineer. This is
still a huge endeavor because of the complexity of current wireless systems and
the diverse student backgrounds. We suggest creating a competition among
student teams to potentiate creativity while leveraging the SDR development
methodology and open-source tools to facilitate cooperation. The proposed
student challenge follows the European UEFA Champions League format, which
includes a qualification phase followed by the elimination round or playoffs.
The students are tasked to build an SDR transmitter and receiver following the
guidelines of the long-term evolution standard. The metric is system
performance. After completing this course, the students will be able to (1)
analyze alternative radio design options and argue about their benefits and
drawbacks and (2) contribute to the evolution of wireless standards. We discuss
our experiences and lessons learned with particular focus on the suitability of
the proposed teaching and evaluation methodology and conclude that competition
in the electrical engineering classroom can spur innovation.Comment: Frontiers in Education 2018 (FIE 2018
Design: One, but in different forms
This overview paper defends an augmented cognitively oriented generic-design
hypothesis: there are both significant similarities between the design
activities implemented in different situations and crucial differences between
these and other cognitive activities; yet, characteristics of a design
situation (related to the design process, the designers, and the artefact)
introduce specificities in the corresponding cognitive activities and
structures that are used, and in the resulting designs. We thus augment the
classical generic-design hypothesis with that of different forms of designing.
We review the data available in the cognitive design research literature and
propose a series of candidates underlying such forms of design, outlining a
number of directions requiring further elaboration
Method for Identifying Actors in a Knowledge Based Cluster
The objective of the paper is to develop a method through which we can identify the actors (industrial, institutional and individual) who are active in technology development in the same or similar knowledge fields. The paper is, thus, aimed to make a methodological contribution to the literature, which has emerged on the systemic nature of innovation. The method involves broadening out from a starting point in a specific patent class, which corresponds as closely as possibly to the technological area of interest, to a set of related patent classes by using co-classifications and citations. After close scrutiny of both patent classes and patents, the actors in the new classes, as well as in the original class, are then identified. We try out the method on radio wave antennas for communication technology in Sweden. We find a range of firms and other actors in a whole set of industries, which bear little relation to one another in an input-output sense. Although we can not ascertain the extent of linkages or relations between these actors, our hypothesis is that they constitute a cluster around radio wave antenna technology in Sweden.knowledge-based clusters, indicators, patents, similar and complementary technologies, horisontal linkages, knowledge spillovers, actors
Application of flight systems methodologies to the validation of knowledge-based systems
Flight and mission-critical systems are verified, qualified for flight, and validated using well-known and well-established techniques. These techniques define the validation methodology used for such systems. In order to verify, qualify, and validate knowledge-based systems (KBS's), the methodology used for conventional systems must be addressed, and the applicability and limitations of that methodology to KBS's must be identified. The author presents an outline of how this approach to the validation of KBS's is being developed and used at the Dryden Flight Research Facility of the NASA Ames Research Center
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Web Service Trust: Towards A Dynamic Assessment Framework
Trust in software services is a key prerequisite for the success and wide adoption of services-oriented computing (SOC) in an open Internet world. However, trust is poorly assessed by existing methods and technologies, especially in dynamically composed and deployed SOC systems. In this paper, we discuss current methods for assessing trust in service-oriented computing and identify gaps of current platforms, in particular with regards to runtime trust assessment. To address these gaps, we propose a model of runtime trust assessment of software services and introduce a framework for realizing the model. A key characteristic of our approach is the support that it offers for customizable assessment of trust based on evidence collected during the operation of software services and its ability to combine this evidence with subjective assessments coming from service clients
Telecommunications 2000: Strategy, HR Practices and Performance
This report constitutes the first benchmarking survey of business and human resource practices among a nationally representative sample of workplaces in the broadly defined telecommunications industry that includes wireline, wireless, cable, and internet providers. It grows out of a multi-year study of organizational change in the industry, and is based on extensive field study, site visits, interviews, and surveys conducted by research teams at Cornell and Rutgers Universities. Managers at 577 establishments across the country gave generously of their time during a lengthy telephone survey. The study was made possible through a generous grant by the Alfred P. Sloan Foundation
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