| 基于混合非正交多址接入的认知无线电网络的信道和功率分配研究 |
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| 引用本文： | 吴静芳,李莉,熊芷萌,周小平.基于混合非正交多址接入的认知无线电网络的信道和功率分配研究[J].上海师范大学学报(自然科学版),2021,50(1):69-77. |
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| 作者姓名： | 吴静芳 李莉 熊芷萌 周小平 |
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| 作者单位： | 上海师范大学信息与机电工程学院,上海200234;上海师范大学信息与机电工程学院,上海200234;上海师范大学信息与机电工程学院,上海200234;上海师范大学信息与机电工程学院,上海200234 |
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| 基金项目： | 上海市科委地方院校能力建设项目（19070502900） |
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| 摘 要： | 针对混合非正交多址接入(NOMA)的认知无线电网络的下行链路,以主用户的干扰功率阈值、次用户最小信息速率以及子信道复用用户数为约束条件,建立信道和功率资源分配的优化问题模型,提出了一种公平性可调的信道分配方法,得到信道和用户的匹配结果;采用凸近似和Charnes-Cooper变换的方法,得到复用用户的功率分配值.仿真结...
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| 关 键 词： | 非正交多址接入(NOMA) 认知无线电 信道分配 功率分配 能效 |
| 收稿时间： | 2020/9/7 0:00:00 |
Research on channel and power allocation of cognitive radio network based on hybrid NOMA |
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| WU Jingfang,LI Li,XIONG Zhimeng and ZHOU Xiaoping.Research on channel and power allocation of cognitive radio network based on hybrid NOMA[J].Journal of Shanghai Normal University(Natural Sciences),2021,50(1):69-77. |
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| Authors: | WU Jingfang LI Li XIONG Zhimeng and ZHOU Xiaoping |
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| Institution: | College of Information, Mechanical and Electrical Engineering, Shanghai Normal University, Shanghai 200234, China,College of Information, Mechanical and Electrical Engineering, Shanghai Normal University, Shanghai 200234, China,College of Information, Mechanical and Electrical Engineering, Shanghai Normal University, Shanghai 200234, China and College of Information, Mechanical and Electrical Engineering, Shanghai Normal University, Shanghai 200234, China |
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| Abstract: | For the downlink of the cognitive radio network with hybrid non-orthogonal multiple access(NOMA), the improved model for channel and power resource allocation were established with the constraints of the primary user''s interference power threshold, the secondary user''s minimum information rate, and the number of subchannel multiplexing users. To optimize the problem model, a channel allocation method with adjustable fairness was proposed to obtain the matching result between the channel and the user. The convex approximation and the Charnes-Cooper transformation method were used to obtain the power allocation value of the multiplexing users. The simulation results showed that when the total power of the base station was 25 dBm, the user fairness index of the channel allocation algorithm proposed in this paper was improved by 50%. |
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| Keywords: | non-orthogonal multiple access(NOMA) cognitive radio channel allocation power allocation energy efficiency |
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