Impact of power control on network-layer stability in cognitive radio Systems
- Title
- Impact of power control on network-layer stability in cognitive radio Systems
- Author
- 김동우
- Keywords
- Cognitive radio (CR) systems; stable throughput; power allocation; interweave CR; underlay CR
- Issue Date
- 2016-09
- Publisher
- IEEE
- Citation
- 2016 24th International Conference on Software, Telecommunications and Computer Networks (SoftCOM), Page. 1-5
- Abstract
- In cognitive radio (CR) systems, secondary transmitters (STs) should have etiquette that its transmission is not harmful to primary communication. Limiting transmitting power of ST is a usual way of being polite in a physical-layer point of view. In this paper, we assume that a primary user (PU) has a desire to keep its stable throughput though ST intervenes, which is a network-layer goal. And we investigate how the physical-layer tool of power control manages to keep the networklayer requirement in CR systems by assuming different levels of channel knowledge. We provide secondary power allocation strategies according to the channel knowledge, which does not violate PU’s desire. Numerical investigation is used to show where and how much the proposed power allocation is effective.
- URI
- https://ieeexplore.ieee.org/document/7772147https://repository.hanyang.ac.kr/handle/20.500.11754/102716
- ISBN
- 978-1-5090-2578-7
- ISSN
- 1847-358X
- DOI
- 10.1109/SOFTCOM.2016.7772147
- Appears in Collections:
- COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > ELECTRICAL ENGINEERING(전자공학부) > Articles
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