Joint Design of ISAC Waveform Under PAPR Constraints  

作　　者：Chen Yating Wen Cai Huang Yan Liang Le Li Jie Zhang Hui Hong Wei 

机构地区：[1]State Key Lab of Millimeter Waves,Southeast University,Nanjing 211100,China [2]School of Information Science and Technology,Northwest University,Xi’an 710127,China [3]National Mobile Communications Research Laboratory,Nanjing 211100,China [4]College of Electronic and Information Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 211100,China

出　　处：《China Communications》2024年第7期186-211,共26页中国通信（英文版）

基　　金：supported in part by the National Natural Science Foundation of China under Grant 62271142;in part by the Key Research and Development Program of Jiangsu Province BE2023021;in part by the Jiangsu Key Research and Development Program Project under Grant BE2023011-2;in part by the Young Scholar Funding of Southeast University;in part by the Fundamental Research Funds for the Central Universities 2242022k60001。

摘　　要：In this paper,we formulate the precoding problem of integrated sensing and communication(ISAC)waveform as a non-convex quadratically constrained quadratic programming(QCQP),in which the weighted sum of communication multi-user interference(MUI)and the gap between dual-use waveform and ideal radar waveform is minimized with peak-toaverage power ratio(PAPR)constraints.We propose an efficient algorithm based on alternating direction method of multipliers(ADMM),which is able to decouple multiple variables and provide a closed-form solution for each subproblem.In addition,to improve the sensing performance in both spatial and temporal domains,we propose a new criteria to design the ideal radar waveform,in which the beam pattern is made similar to the ideal one and the integrated sidelobe level of the ambiguity function in each target direction is minimized in the region of interest.The limited memory Broyden-Fletcher-Goldfarb-Shanno(LBFGS)algorithm is applied to the design of the ideal radar waveform which works as a reference in the design of the dual-function waveform.Numerical results indicate that the designed dual-function waveform is capable of offering good communication quality of service(QoS)and sensing performance.

关 键 词：ambiguity function integrated sensing and communication MIMO OFDM PAPR waveform design 

分 类 号：TN957.51[电子电信—信号与信息处理]