| 한글제목(Korean Title) |
Energy Efficiency Resource Allocation for MIMO Cognitive Radio with Multiple Antenna Spectrum Sensing |
| 영문제목(English Title) |
Energy Efficiency Resource Allocation for MIMO Cognitive Radio with Multiple Antenna Spectrum Sensing |
| 저자(Author) |
Bing Ning
Shouyi Yang
Xiaomin Mu
Yanhui Lu
Wanming Hao
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| 원문수록처(Citation) |
VOL 09 NO. 11 PP. 4387 ~ 4404 (2015. 11) |
한글내용
(Korean Abstract) |
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영문내용
(English Abstract) |
The energy-efficient design of sensing-based spectrum sharing of a multi-input and multi-output (MIMO) cognitive radio (CR) system with imperfect multiple antenna spectrum sensing is investigated in this study. Optimal resource allocation strategies, including sensing time and power allocation schemes, are studied to maximize the energy efficiency (EE) of the secondary base station under the transmit power and interference power constraints. EE problem is formulated as a nonlinear stochastic fractional programming of a nonconvex optimal problem. The EE problem is transformed into its equivalent nonlinear parametric programming and solved by one-dimension search algorithm. To reduce searching complexity, the search range was founded by demonstration. Furthermore, simulation results confirms that an optimal sensing time exists to maximize EE, and shows that EE is affected by the spectrum detection factors and corresponding constraints.
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| 키워드(Keyword) |
Resource management
energy efficiency
MIMO
CR
multiple antenna spectrum sensing
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| 파일첨부 |
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