面向车联网的感知辅助通信的大规模MIMO-OTFS鲁棒传输方案

doi:10.11959/j.issn.2096-3750.2023.00363

物联网学报 ›› 2023, Vol. 7 ›› Issue (4): 39-51.doi: 10.11959/j.issn.2096-3750.2023.00363

• 理论与技术 • 上一篇

面向车联网的感知辅助通信的大规模MIMO-OTFS鲁棒传输方案

王为栋¹, 高晖¹, 粟欣², 肖立民², 索士强³, 龚秋莎³

¹ 北京邮电大学可信分布式计算与服务教育部重点实验室，北京 100876
² 清华大学电子工程系，北京 100084
³ 中信科移动通信技术股份有限公司，北京 100083

修回日期:2023-07-16 出版日期:2023-12-01 发布日期:2023-12-01
作者简介:王为栋（1999- ），男，北京邮电大学可信分布式计算与服务教育部重点实验室硕士生，主要研究方向为无线通信、通感一体
高晖（1984- ），男，博士，北京邮电大学可信分布式计算与服务教育部重点实验室副教授，主要研究方向为毫米波大规模天线系统、智能超表面通信、智能无线通信与网络、通感一体
粟欣（1962- ），男，博士，清华大学电子工程系教授，主要研究方向为宽带无线接入、自组织网络、软件无线电、协作通信
肖立民（1970- ），男，博士，清华大学电子工程系副研究员，主要研究方向为信道测量与建模、无线移动通信和宽带无线传输技术
索士强（1975- ），男，中信科移动通信技术股份有限公司创新中心副总经理，主要研究方向为超大规模天线、人工智能、通信与感知融合
龚秋莎（1977- ），女，中信科移动通信技术股份有限公司工程师，主要研究方向为移动通信的网络架构、物理层关键技术
基金资助:
国家自然科学基金资助项目(62071071)

A massive MIMO-OTFS robust transmission scheme for vehicular networks using sensing-assisted communication

Weidong WANG¹, Hui GAO¹, Xin SU², Limin XIAO², Shiqiang SUO³, Qiusha GONG³

¹ Key Laboratory of Trustworthy Distributed Computing and Service of Ministry of Education, Beijing University of Posts and Telecommunications, Beijing 100876, China
² Department of Electronic Engineering, Tsinghua University, Beijing 100084, China
³ CICT Mobile Communication Technology Co., Ltd., Beijing 100083, China

Revised:2023-07-16 Online:2023-12-01 Published:2023-12-01
Supported by:
The National Natural Science Foundation of China(62071071)

摘要/Abstract

摘要：

面向车联网多用户通感一体系统，提出了一种感知辅助通信的大规模多输入多输出正交时频空鲁棒传输方案。由于实际雷达感知精度有限，基于感知参数重构的信道状态信息（CSI, channel state information）存在误差，系统的传输性能也会随之下降。对此，所提方案首先在发射端基于感知参数在时延多普勒域重构CSI，并考虑CSI误差设计鲁棒波束成形方案。其次，在接收端利用感知参数觉知用户间干扰及信道估计误差，并将所觉知的干扰误差以解析式的方式融入接收机中完成鲁棒设计。仿真结果表明，所提方案可以在CSI非理想情况下有效降低系统误码率，增加用户的数据接收速率，提升系统的整体性能。

关键词: 正交时频空, 通感一体技术, 信号检测器, 鲁棒波束成形

Abstract:

For a multi-user integrated sensing and communication system in the network of vehicles, a robust sensing-assisted communication massive multiple-input multiple-output (MIMO) orthogonal time frequency space (OTFS) transmission scheme was proposed.Due to the limited sensing accuracy of the radar, errors existed in the channel state information (CSI) reconstructed based on sensing parameters.The transmission performance decreased as a result.To address this issue, the CSI in the delay doppler domain was reconstructed based on the sensing parameters by the transmitter firstly.And a robust beam forming scheme was designed considering the CSI error.Secondly, the channel estimation error and inter user interference were perceived by receivers based on sensing parameters.Then the robust receiver was designed by incorporating the perceived interference errors into the signal detector in an analytical way.Finally, numerical simulation results show that the proposed method effectively reduces the system bit error rate and increases the data reception rate of users.The proposed method improves the overall system performance in this situation.

Key words: orthogonal time frequency space, integrated sensing and communication, signal detector, robust beamforming

中图分类号:

TN92

王为栋, 高晖, 粟欣, 肖立民, 索士强, 龚秋莎. 面向车联网的感知辅助通信的大规模MIMO-OTFS鲁棒传输方案[J]. 物联网学报, 2023, 7(4): 39-51.

Weidong WANG, Hui GAO, Xin SU, Limin XIAO, Shiqiang SUO, Qiusha GONG. A massive MIMO-OTFS robust transmission scheme for vehicular networks using sensing-assisted communication[J]. Chinese Journal on Internet of Things, 2023, 7(4): 39-51.

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文献	基于OTFS-ISAC架构	多用户MIMO	鲁棒波束成形设计	鲁棒接收机方案设计	感知辅助通信性能优化
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面向车联网的感知辅助通信的大规模MIMO-OTFS鲁棒传输方案

A massive MIMO-OTFS robust transmission scheme for vehicular networks using sensing-assisted communication

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