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Kalyana Chakravarthy, C.
- Energy Efficient Routing in Cognitive Radio Networks: Challenges and Existing Solutions
Abstract Views :169 |
PDF Views:0
Authors
Affiliations
1 Department of Computer Science and Engineering, GMR Institute of Technology, IN
2 Department of Computer Engineering and Networks, Jazan University, SA
3 ACM
1 Department of Computer Science and Engineering, GMR Institute of Technology, IN
2 Department of Computer Engineering and Networks, Jazan University, SA
3 ACM
Source
ICTACT Journal on Communication Technology, Vol 6, No 1 (2015), Pagination: 1049-1052Abstract
Dynamic Spectrum Allocation using Cognitive Radio (CR) is a promising solution to the spectrum availability problem in wireless networks. Cognitive Radio, however, opens up certain new issues, mainly at the physical, medium access control and routing layer levels. Several solutions have been proposed to tackle these issues and use dynamic spectrum allocation to improve the performance of wireless networks. The focus of most of these has been to improve the throughput and other Quality of Service (QoS) metrics. However, energy spent by a node is also an important matter of concern in most wireless networks e.g. wireless sensor networks. In this paper, we focus on the challenges posed by CR in routing data in an energy efficient manner. We then study some existing solutions to route data energy efficiently in CR networks and suggest some directions for future research.Keywords
Wireless Networks, Energy Efficiency, Cognitive Radio, Routing.- MOOCs-From Theory to Practice:The Technology Upheaval
Abstract Views :171 |
PDF Views:1
Authors
Affiliations
1 Department of Computer Science and Engineering, MVGR College of Engineering, Vizianagaram, IN
2 Department of Mechanical Engineering, MVGR College of Engineering, Vizianagaram, IN
1 Department of Computer Science and Engineering, MVGR College of Engineering, Vizianagaram, IN
2 Department of Mechanical Engineering, MVGR College of Engineering, Vizianagaram, IN
Source
Journal of Engineering Education Transformations, Vol 30, No 3 (2017), Pagination: 304-309Abstract
Over the past few years, Massively Open Online Courses (MOOCs) has been supplementing class room learning by renowned Professors worldwide, allowing students to have their doubts clarified and by providing different perspective of topics from several traditional subjects at the comfort of their desk. MOOCs has several objectives that include being open, participatory and distributary. The extent to which these objectives are reached is debatable.While resources are aplenty, thanks to the vision of the pioneers in education like the Cambridge, MIT and the Stanford University willing to open their gates to the world, proper direction, training and engagement are still required for most of the stakeholders to ensure effective utilization. Further,with the learning requirements having shifted from theory to practice, MOOCs has certainly taken a new direction. This of course is not without its own challenges. In this paper, we identify various challenges in present day MOOCs and the suggested countermeasures. While some of these have been identified recently, few more are based on our own practical experiences. A survey is also conducted to summarize learner's preferences, their willingness to adapt to new courses and their preparedness to deliver their own MOOCs courses. Results indicate that most learners prefer mixed courses that are a combination of Theory and Practice. Almost equal number of learners expressed interest in Industry relevant courses as those for Curriculum related courses. However, the preparedness of users in creating and delivering their own MOOCs courses is quite low, although vast majority are using MOOCs courses for their curriculum design, which is encouraging. We also suggest few methods and tools to enable teachers develop their own MOOC Courses.Keywords
MOOCs, Curriculum Delivery, Industry Relevant Courses.References
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