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1. 华北电力大学新能源电力系统国家重点实验室,北京 102206
2. 华北电力大学河北省电力物联网技术重点实验室,河北 保定 071003
[ "张钰(1995- ),女,安徽六安人,华北电力大学博士生,主要研究方向为5G毫米波通信中的预编码技术、非正交多址接入技术、无线通信网络资源优化等" ]
[ "赵雄文(1964- ),男,陕西清涧人,博士,华北电力大学教授、博士生导师,主要研究方向为无线通信与电力系统通信等" ]
[ "王晓晴(1998- ),女,青海西宁人,华北电力大学硕士生,主要研究方向为智能超表面、无线通信网络资源优化等" ]
[ "耿绥燕(1966- ),女,陕西绥德人,博士,华北电力大学副教授,主要研究方向为短距离无线通信技术等" ]
[ "秦鹏(1987- ),男,河南商丘人,博士,华北电力大学副教授,主要研究方向为网络通信技术等" ]
[ "周振宇(1983- ),男,河北张家口人,博士,华北电力大学教授、博士生导师,主要研究方向为无线通信网络与新技术、物联网与现代传感技术、能源互联网信息通信技术等" ]
网络出版日期:2022-03,
纸质出版日期:2022-03-25
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张钰, 赵雄文, 王晓晴, 等. 多载波NOMA安全通信系统稳健性资源分配算法[J]. 通信学报, 2022,43(3):42-52.
Yu ZHANG, Xiongwen ZHAO, Xiaoqing WANG, et al. Robust resource allocation algorithm for multicarrier NOMA security communication system[J]. Journal on communications, 2022, 43(3): 42-52.
张钰, 赵雄文, 王晓晴, 等. 多载波NOMA安全通信系统稳健性资源分配算法[J]. 通信学报, 2022,43(3):42-52. DOI: 10.11959/j.issn.1000-436x.2022044.
Yu ZHANG, Xiongwen ZHAO, Xiaoqing WANG, et al. Robust resource allocation algorithm for multicarrier NOMA security communication system[J]. Journal on communications, 2022, 43(3): 42-52. DOI: 10.11959/j.issn.1000-436x.2022044.
为提升无线网络频谱利用率和增强信息传输的安全性,针对下行多载波非正交多址接入安全通信系统,提出了一种基于安全和速率最大化的稳健性资源分配算法。首先,设计人工噪声(AN)预编码矢量与合法用户信道正交,消除人工噪声对合法传输的影响。然后,考虑每个用户最小速率约束、基站最大功率约束,基于窃听信道不确定性建立AN预编码、下行数据预编码和子载波分配联合优化问题模型。为求解该非凸问题,将其分解为预编码优化和子载波分配 2 个子问题进行联合优化,基于 S-procedure 和块坐标下降算法对预编码优化问题进行求解,基于动态匹配理论进行子载波分配。研究结果表明,所提算法具有很好的稳健性,能够有效提高系统安全和速率。
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.
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