16,243 research outputs found
Use of scenario evaluation in preparation for deployment of a collaborative system for knowledge transfer - the case of KiMERA
This paper presented an approach for the evaluation of a collaborative system, after the completion of system development and software testing but before its deployment. Scenario and collaborative episodes were designed and data collected from users role-playing. This was found to be a useful step in refining the user training, in setting the right level of user expectation when the system started to roll-out to real users and in providing feedback to the development team
iTETRIS: An Integrated Wireless and Traffic Platform for Real-Time Road Traffic Management Solutions
Wireless vehicular cooperative systems have been identified as an attractive solution to improve road traffic management, thereby contributing to the European goal of safer, cleaner, and more efficient and sustainable traffic solutions. V2V-V2I communication technologies can improve traffic management through real-time exchange of data among vehicles and with road infrastructure. It is also of great importance to investigate the adequate combination of V2V and V2I technologies to ensure the continuous and costefficient operation of traffic management solutions based on wireless vehicular cooperative solutions. However, to adequately design and optimize these communication protocols and analyze the potential of wireless vehicular cooperative systems to improve road traffic management, adequate testbeds and field operational tests need to be conducted.
Despite the potential of Field Operational Tests to get the first insights into the benefits and problems faced in the development of wireless vehicular cooperative systems, there is yet the need to evaluate in the long term and large dimension the true potential benefits of wireless vehicular cooperative systems to improve traffic efficiency. To this aim, iTETRIS is devoted to the development of advanced tools coupling traffic and wireless communication simulators
Separation Framework: An Enabler for Cooperative and D2D Communication for Future 5G Networks
Soaring capacity and coverage demands dictate that future cellular networks
need to soon migrate towards ultra-dense networks. However, network
densification comes with a host of challenges that include compromised energy
efficiency, complex interference management, cumbersome mobility management,
burdensome signaling overheads and higher backhaul costs. Interestingly, most
of the problems, that beleaguer network densification, stem from legacy
networks' one common feature i.e., tight coupling between the control and data
planes regardless of their degree of heterogeneity and cell density.
Consequently, in wake of 5G, control and data planes separation architecture
(SARC) has recently been conceived as a promising paradigm that has potential
to address most of aforementioned challenges. In this article, we review
various proposals that have been presented in literature so far to enable SARC.
More specifically, we analyze how and to what degree various SARC proposals
address the four main challenges in network densification namely: energy
efficiency, system level capacity maximization, interference management and
mobility management. We then focus on two salient features of future cellular
networks that have not yet been adapted in legacy networks at wide scale and
thus remain a hallmark of 5G, i.e., coordinated multipoint (CoMP), and
device-to-device (D2D) communications. After providing necessary background on
CoMP and D2D, we analyze how SARC can particularly act as a major enabler for
CoMP and D2D in context of 5G. This article thus serves as both a tutorial as
well as an up to date survey on SARC, CoMP and D2D. Most importantly, the
article provides an extensive outlook of challenges and opportunities that lie
at the crossroads of these three mutually entangled emerging technologies.Comment: 28 pages, 11 figures, IEEE Communications Surveys & Tutorials 201
Vision 21: The NASA strategic plan
The NASA Strategic Plan, Vision 21, is a living roadmap to the future to guide the men and women of the NASA team as they ensure U.S. leadership in space exploration and aeronautics research. This multiyear plan consists of a set of programs and activities that will retain our leadership in space science and the exploration of the solar system; help rebuild our nation's technology base and strengthen our leadership in aviation and other key industries; encourage commercial applications of space technology; use the unique perspective of space to better understand our home planet; provide the U.S. and its partners with a permanent space based research facility; expand on the legacy of Apollo and initiate precursor activities to establish a lunar base; and allow us a journey into tomorrow, journey to another planet (Mars), and beyond
Recommended from our members
D3.6 - An interdisciplinary framework for comparisons and cross-fertilization strategies of MAZI pilots (version2)
[Executive summary]
The 1st version of this deliverable focused on framing and carrying out exercises of self-reflection across all MAZI pilots, which aimed to gather comparable knowledge of the respective partner‘s visions and anticipation of the pilot activities. This allowed us to draw comparisons that proved valuable as a starting point for the cross-fertilisation events, in which multiple partners met with the goal to work on the interdisciplinary aspects of MAZI as a project.
In this second version, we make one step further toward four directions:
a) we analyze the material included in D3.2 and D3.5 in light of further developments and interactions toward comparing the individual perspectives of partners on key concepts such as DIY networking, as well as the different pilot studies;
b) we describe and analyse the cross-fertilization events that took place during the first year and the initial lessons learned from the pilots;
c) we try to capture the similarities and differences between the disciplinary perspectives of the academic partners; and
d) we identify important tensions between research and action as they have manifested during the crossfertilization events of the first year.
Based on this material, we propose certain enhancements of our interdisciplinary framework, i.e., the deconstruction of the pilot studies into their core elements, the placement of MAZI toolkit as a boundary object between different subsets of actors in MAZI, and two self-reflection exercises to be carried out in the following months and to be documented in the Deliverable D3.11
Maximizing Conservation Effects in the Next Farm Bill
Agricultural and Food Policy,
- …