物联网学报2023，Vol.7Issue(4)：39-51,13.DOI:10.11959/j.issn.2096-3750.2023.00363
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
摘要
Abstract
For a multi-user integrated sensing and communication system in the network of vehicles,a robust sens-ing-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 ad-dress 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 de-signed 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 re-ception rate of users.The proposed method improves the overall system performance in this situation.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Key words
orthogonal time frequency space/integrated sensing and communication/signal detector/robust beamform-ing分类
信息技术与安全科学引用本文复制引用
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):39-51,13.基金项目
国家自然科学基金资助项目(No.62071071)The National Natural Science Foundation of China(No.62071071) （No.62071071）
