Robust resource allocation algorithm for multicarrier NOMA security communication system
To improve the spectrum efficiency and enhance the information security of wireless network, a sum secrecy rate maximization-based robust resource allocation algorithm was proposed for a downlink multicarrier NOMA security communication system.Firstly, the artificial noise (AN) precoding vector was...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | zho |
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Editorial Department of Journal on Communications
2022-03-01
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| Series: | Tongxin xuebao |
| Subjects: | |
| Online Access: | http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2022044/ |
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| _version_ | 1841539983430647808 |
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| author | Yu ZHANG Xiongwen ZHAO Xiaoqing WANG Suiyan GENG Peng QIN Zhenyu ZHOU |
| author_facet | Yu ZHANG Xiongwen ZHAO Xiaoqing WANG Suiyan GENG Peng QIN Zhenyu ZHOU |
| author_sort | Yu ZHANG |
| collection | DOAJ |
| description | To improve the spectrum efficiency and enhance the information security of wireless network, a sum secrecy rate maximization-based robust resource allocation algorithm was proposed for a downlink multicarrier NOMA security communication system.Firstly, the artificial noise (AN) precoding vector was designed to be orthogonal to the legitimate channel, so that the legitimate transmission would not be affected by the AN.Then, considering the constraints of rate requirement of each user and the maximum transmit power of base station, a joint AN precoding, downlink data precoding and subcarrier allocation optimization problem was formulated under eavesdropping channel uncertainties.To solve that non-convex problem, it was decomposed into two joint optimization subproblems: precoding optimization and subcarrier allocation.The former was solved based on S-procedure and block coordinate descent (BCD) algorithm, the latter was solved by dynamic matching theory.Simulation results demonstrate that the proposed algorithm has good robustness and can effectively improve the sum secrecy rate. |
| format | Article |
| id | doaj-art-92396a6ea6684ba3a92ca9e6ccc506bd |
| institution | Kabale University |
| issn | 1000-436X |
| language | zho |
| publishDate | 2022-03-01 |
| publisher | Editorial Department of Journal on Communications |
| record_format | Article |
| series | Tongxin xuebao |
| spelling | doaj-art-92396a6ea6684ba3a92ca9e6ccc506bd2025-01-14T06:29:03ZzhoEditorial Department of Journal on CommunicationsTongxin xuebao1000-436X2022-03-0143425259392759Robust resource allocation algorithm for multicarrier NOMA security communication systemYu ZHANGXiongwen ZHAOXiaoqing WANGSuiyan GENGPeng QINZhenyu ZHOUTo improve the spectrum efficiency and enhance the information security of wireless network, a sum secrecy rate maximization-based robust resource allocation algorithm was proposed for a downlink multicarrier NOMA security communication system.Firstly, the artificial noise (AN) precoding vector was designed to be orthogonal to the legitimate channel, so that the legitimate transmission would not be affected by the AN.Then, considering the constraints of rate requirement of each user and the maximum transmit power of base station, a joint AN precoding, downlink data precoding and subcarrier allocation optimization problem was formulated under eavesdropping channel uncertainties.To solve that non-convex problem, it was decomposed into two joint optimization subproblems: precoding optimization and subcarrier allocation.The former was solved based on S-procedure and block coordinate descent (BCD) algorithm, the latter was solved by dynamic matching theory.Simulation results demonstrate that the proposed algorithm has good robustness and can effectively improve the sum secrecy rate.http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2022044/multicarrierNOMAphysical layer securityartificial noiseprecodingsubcarrier allocation |
| spellingShingle | Yu ZHANG Xiongwen ZHAO Xiaoqing WANG Suiyan GENG Peng QIN Zhenyu ZHOU Robust resource allocation algorithm for multicarrier NOMA security communication system Tongxin xuebao multicarrier NOMA physical layer security artificial noise precoding subcarrier allocation |
| title | Robust resource allocation algorithm for multicarrier NOMA security communication system |
| title_full | Robust resource allocation algorithm for multicarrier NOMA security communication system |
| title_fullStr | Robust resource allocation algorithm for multicarrier NOMA security communication system |
| title_full_unstemmed | Robust resource allocation algorithm for multicarrier NOMA security communication system |
| title_short | Robust resource allocation algorithm for multicarrier NOMA security communication system |
| title_sort | robust resource allocation algorithm for multicarrier noma security communication system |
| topic | multicarrier NOMA physical layer security artificial noise precoding subcarrier allocation |
| url | http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2022044/ |
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