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Cognitive radio adaptation for power consumption minimization using biogeography-based optimization |
Pei-Han Qi(齐佩汉)1, Shi-Lian Zheng(郑仕链)1,2, Xiao-Niu Yang(杨小牛)1,2, Zhi-Jin Zhao(赵知劲)3 |
1. School of Telecommunications Engineering, Xidian University, Xi'an 710071, China;
2. Science and Technology on Communication Information Security Control Laboratory, Jiaxing 314033, China;
3. School of Telecommunications, Hangzhou Dianzi University, Hangzhou 310018, China |
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Abstract Adaptation is one of the key capabilities of cognitive radio, which focuses on how to adjust the radio parameters to optimize the system performance based on the knowledge of the radio environment and its capability and characteristics. In this paper, we consider the cognitive radio adaptation problem for power consumption minimization. The problem is formulated as a constrained power consumption minimization problem, and the biogeography-based optimization (BBO) is introduced to solve this optimization problem. A novel habitat suitability index (HSI) evaluation mechanism is proposed, in which both the power consumption minimization objective and the quality of services (QoS) constraints are taken into account. The results show that under different QoS requirement settings corresponding to different types of services, the algorithm can minimize power consumption while still maintaining the QoS requirements. Comparison with particle swarm optimization (PSO) and cat swarm optimization (CSO) reveals that BBO works better, especially at the early stage of the search, which means that the BBO is a better choice for real-time applications.
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Received: 29 January 2015
Revised: 24 July 2016
Accepted manuscript online:
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PACS:
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84.40.Ua
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(Telecommunications: signal transmission and processing; communication satellites)
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Fund: Project supported by the National Natural Science Foundation of China (Grant No. 61501356), the Fundamental Research Funds of the Ministry of Education, China (Grant No. JB160101), and the Postdoctoral Fund of Shaanxi Province, China. |
Corresponding Authors:
Shi-Lian Zheng
E-mail: lianshizheng@126.com
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Cite this article:
Pei-Han Qi(齐佩汉), Shi-Lian Zheng(郑仕链), Xiao-Niu Yang(杨小牛), Zhi-Jin Zhao(赵知劲) Cognitive radio adaptation for power consumption minimization using biogeography-based optimization 2016 Chin. Phys. B 25 128403
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