Covariance-based beamforming for integrated sensing and communications

IF 4.6 3区计算机科学 Q1 COMPUTER SCIENCE, INFORMATION SYSTEMS

ICT Express Pub Date : 2026-10-01 Epub Date: 2025-09-23 DOI:10.1016/j.icte.2025.09.004

Seokjun Park, Eunsung Choi, Jinseok Choi

引用次数: 0

Abstract

In this paper, we propose a channel covariance-based joint communication and radar beamforming framework for multi-user multi-target ISAC systems, aiming to maximize spectral efficiency (SE) under radar performance constraints. The radar performance is measured by the mean squared error (MSE) of the transmit beam. By approximating ergodic SE via spatial channel covariance, we reformulate the non-convex optimization as a nonlinear eigenvalue problem (NEPv) solved with power iteration and bisection. Simulation results validate the effectiveness of the proposed algorithm.

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基于协方差的集成传感和通信波束形成

本文提出了一种基于信道协方差的多用户多目标ISAC联合通信和雷达波束形成框架，旨在在雷达性能约束下实现频谱效率最大化。雷达性能是用发射波束的均方误差（MSE）来衡量的。通过空间通道协方差近似遍历SE，将非凸优化问题重新表述为一个用幂次迭代和二分法求解的非线性特征值问题（NEPv）。仿真结果验证了该算法的有效性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

ICT Express Multiple-

CiteScore

10.20

自引率

1.90%

发文量

167

审稿时长

35 weeks

期刊介绍： The ICT Express journal published by the Korean Institute of Communications and Information Sciences (KICS) is an international, peer-reviewed research publication covering all aspects of information and communication technology. The journal aims to publish research that helps advance the theoretical and practical understanding of ICT convergence, platform technologies, communication networks, and device technologies. The technology advancement in information and communication technology (ICT) sector enables portable devices to be always connected while supporting high data rate, resulting in the recent popularity of smartphones that have a considerable impact in economic and social development.