面向6G的天地一体化新型多载波技术综述  

Review of Novel Multicarrier Technologies for 6G-oriented Space-terrestrial Integrated Network

作　　者：聂欣 郝亚星 肖子恒 王方刚 NIE Xin;HAO Yaxing;XIAO Ziheng;WANG Fanggang(School of Electronic and Information Engineering,Beijing Jiaotong University,Beijing 100044,China)

机构地区：[1]北京交通大学电子信息工程学院,北京100044

出　　处：《移动通信》2025年第2期77-84,94,共9页Mobile Communications

基　　金：国家自然科学基金“高动态场景下MIMOOTFS高效可靠通信方法研究”(62471026);国家自然科学基金铁路基础研究联合基金“高速列车通信网络柔性组网与确定性传输方法及关键技术研究”(U2368201);国家自然科学基金“创新群体”“轨道交通信息高效可靠传输”(62221001);中兴通讯产学研合作基金“GFB-OFDM多种场景的适配研究”(IA20240319006)。

摘　　要：6G提出了泛在连接的新场景,地面通信与卫星通信的融合成为未来移动通信的重要发展趋势,天地一体化波形设计是关键的研究方向。针对天地一体化场景的特点和需求,介绍了基于滤波器和基于变换域的两类新型多载波技术,并分析了各自的优势。在非地面网络抽头延迟线信道模型下,基于蒙特卡洛方法进行了仿真,结果表明基于滤波器的调制波形具有更小的带外泄露,而基于变换域的调制波形能实现更低的误比特率。Ubiquitous connectivity is proposed as a new scenario for 6G.The integration of terrestrial and satellite communications has become an important development trend for future mobile communications.The design of space-terrestrial integrated waveforms is a key research direction.In view of the features and demands of the space-terrestrial integrated scenario,two types of novel multicarrier technologies individually based on filters and transform domains are introduced,and their advantages are also analyzed.Simulations are conducted using the Monte Carlo method under the non-terrestrial network tapped-delay line channel model.The results show that the filter-based modulation waveforms exhibit smaller out-of-band leakage,while the transform domain-based ones achieve lower bit error rates.

关 键 词：6G 天地一体化 波形 多载波 非地面网络 

分 类 号：TN929.5[电子电信—通信与信息系统]