1.中山大学电子与通信工程学院, 广东 深圳 518107
2.鹏城实验室宽带通信研究部, 广东 深圳 518055
3.帝国理工学院, 英国 伦敦 SW72az
庄宏成(1973年生),男;研究方向:移动通信;E-mail:zhuanghch@mail.sysu.edu.cn
收稿:2025-02-04,
录用:2025-02-28,
网络出版:2025-05-21,
纸质出版:2025-07-25
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庄宏成,安杰,林玥彤.通感一体化干扰管理及性能评估[J].中山大学学报(自然科学版)(中英文),2025,64(04):31-41.
ZHUANG Hongcheng,AN Jie,LIN Yuetong.Interference management approach and performance evaluation for integrated sensing and communication[J].Acta Scientiarum Naturalium Universitatis Sunyatseni,2025,64(04):31-41.
庄宏成,安杰,林玥彤.通感一体化干扰管理及性能评估[J].中山大学学报(自然科学版)(中英文),2025,64(04):31-41. DOI: 10.13471/j.cnki.acta.snus.ZR20250031.
ZHUANG Hongcheng,AN Jie,LIN Yuetong.Interference management approach and performance evaluation for integrated sensing and communication[J].Acta Scientiarum Naturalium Universitatis Sunyatseni,2025,64(04):31-41. DOI: 10.13471/j.cnki.acta.snus.ZR20250031.
提出了一种基于用户分组和非正交多址技术的通感一体化干扰管理方法。首先,通过无线信号感知获得基站覆盖范围内的通信用户和感知目标的分布并以感知目标为基准分组。其次,同一分组内利用NOMA在功率域完全复用用户,不同分组采用空域波束的正交性降低波束间干扰。最后,以通信用户和速率和感知功率加权和的目标值最大化为目标函数,提出一种基于双惩罚项的SCA迭代算法求解最优波束赋形器。结果表明,与非分组方法相比,GF-NOMA方法的系统性能平均提高了约10%。同时,评估了通信和感知权重因子、惩罚项以及分组用户分布对GF-NOMA干扰管理的系统性能影响。
In this paper,a ISAC(integrated sensing and communication) interference management approach based on user-grouping and non-orthogonal multiple access(NOMA) is proposed. Firstly, the distribution of communication users and sensing targets within the coverage of the base station through wireless signal sensing and group them based on the sensing targets is obtained. Secondly,NOMA is used to fully multiplex users in the power domain within the same group,and the orthogonality of spatial beams is used in different groups to reduce inter-group interference. Finally,a dual penalty based SCA iterative algorithm(DP-SCA) is proposed to solve the optimal beamformer with the goal of maximizing the weighted sum of communication users’ rates and sensing power. The simulation results show that, compared with non-grouped methods,the GF-NOMA method has an average system performance improvement of about 10%. At the same time,the impact of communication and sensing weight factors, penalty terms,and grouped user distribution on the system performance of the GF-NOMA interference management approach is evaluated .
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