TIIS (한국인터넷정보학회)
Current Result Document :
| 한글제목(Korean Title) |
Allocation for Secondary Users in the Cell Edge of Cognitive Radio Networks |
| 영문제목(English Title) |
Allocation for Secondary Users in the Cell Edge of Cognitive Radio Networks |
| 저자(Author) |
Sungjin Jang
Jongbae Kim
Jungwon Byun
Yongtae Shin
|
| 원문수록처(Citation) |
VOL 08 NO. 07 PP. 2231 ~ 2245 (2014. 07) |
한글내용
(Korean Abstract) |
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영문내용
(English Abstract) |
Cognitive Radio (CR) has very promising potential to improve spectrum utilization by allowing unlicensed Secondary Users (SUs) to access the spectrum dynamically without disturbing licensed Primary Users (PUs). Mitigating interference is a fundamental problem in CR scenarios. This is particularly problematic for deploying CR in cellular networks, when users are located at the cell edge, as the inter-cell interference mitigation and frequency reuse are critical requirements for both PUs and SUs. Further cellular networks require higher cell edge performance, then SUs will meet more challenges than PUs. To solve the performance decrease for SUs at the cell edge, a novel Dynamic Spectrum Allocation (DSA) scheme based on Game Theory is proposed in this paper. Full frequency reuse can be realized as well as inter-cell interference mitigated according to SUs’ sensing, measurement and interaction in this scheme. A joint power/channel allocation algorithm is proposed to improve both cell-edge user experience and network performance through distributed pricing calculation and exchange based on game theory. Analytical proof is presented and simulation results show that the proposed scheme achieves high efficiency of spectrum usage and improvement of cell edge SUs’ performance. |
| 키워드(Keyword) |
Dynamic Spectrum Allocation
Game Theory
Nash Equilibrium
Pricing
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| 파일첨부 |
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