Antenna Selection Method for Distributed Dual-Function Radar Communication in MIMO System  

作　　者：Haitao Zhao Zhongzheng Ding Qin Wang Wenchao Xia Bo Xu Hongbo Zhu 

机构地区：[1]College of Communication and Information Engineering,Nanjing University of Posts and Telecommunications,Nanjing 210003,China [2]Jiangsu Key Laboratory of Wireless Communications and Internet of Things,Nanjing University of Posts and Telecommunications,Nanjing 210003,China

出　　处：《Chinese Journal of Electronics》2025年第1期165-175,共11页电子学报(英文版)

基　　金：supported by the Science and Technology Innovation 2030-Major Project(Grant No.2021ZD0140405);the National Key Research and Development Program of China(Grant No.2020YFB1806608);the Natural Science Foundation on Frontier Leading Technology Basic Research Project of Jiangsu(Grant No.BK20212001)。

摘　　要：Distributed dual-function radar system is an emerging trend in next-generation wireless systems,offering the possibility of improved parameter estimation for target localization as well as improved communication performance.With sufficient resource allocation,the achievable minimum estimated mean square error(MSE)and maximum total communication rate of localization may exceed the intended performance metrics of the system,which may consume an excessive number of antennas as well as antenna costs.In order to avoid resource wastage,this paper proposes a distributed dual-function radar communication multiple-input multiple-output(MIMO)system capable of performing radar and communication tasks simultaneously.The distributed system achieves the desired MSE performance metrics and communication performance metrics by efficiently selecting a subset of antennas,and minimizing the number of transmitting antennas and receiving antennas used in the system as well as the cost.In this paper,the problem is modeled as a knapsack problem where the objective is to obtain the maximal MSE performance and the maximal total communication rate performance at the lowest cost,for which we design a heuristic antenna selection algorithm.The designed algorithm is effective in reducing the time complexity as well as reducing the cost of antenna,and minimizing the number of antennas required.

关 键 词：Distributed radar Dual-function communication radar Cramer-Rao bound Multiple-input multiple-output system Knapsack problem 

分 类 号：TN958[电子电信—信号与信息处理]