移动通信2026，Vol.50Issue(5)：60-66,7.DOI:10.3969/j.issn.1006-1010.20260317-0002
基于空时编码的通感一体化波束设计
Space-Time Coding-Based Beam Design for Integrated Sensing and Communication
摘要
Abstract
Integrated sensing and communication(ISAC)technology enables the coordination of multi-user communication and multi-target sensing by sharing spectrum and hardware resources.However,under statistical channel state information,how to achieve an effective tradeoff between communication reliability and sensing performance remains an urgent problem to be addressed.Compared with single-stream transmission schemes,space-time coding(STC)can provide additional degrees of freedom without introducing independent sensing signals,thereby offering a new design space for balancing ISAC performance.In view of this,this paper proposes an STC-based joint beam design method,formulates an optimization objective that jointly considers beampattern error and communication outage probability,and develops a projected gradient ascent algorithm.Simulation results show that the proposed scheme can significantly improve multi-user communication reliability while maintaining a comparable beampattern error,thereby achieving a better tradeoff between sensing and communication performance.关键词
通感一体化/空时编码/波束方向图/中断概率Key words
integrated sensing and communication/space-time coding/beampattern/outage probability分类
信息技术与安全科学引用本文复制引用
李科教,张卢华,唐元琪,周盈君,许浩,朱宇..基于空时编码的通感一体化波束设计[J].移动通信,2026,50(5):60-66,7.基金项目
国家自然科学基金项目"面向低轨卫星通信的多天线数模混合信号处理研究"(62471145) （62471145）
上海市科学技术委员会项目"基于云网融合的6G智能通感一体化技术研究与场景示范"(25DP1501200) （25DP1501200）
