面向5G的新型多载波传输技术比较  

Comparison of New Multicarrier Transmission Techniques for 5G

作　　者：李宁[1] 周围[1,2] 

机构地区：[1]重庆邮电大学移动通信技术重庆市重点实验室,重庆400065 [2]重庆邮电大学光电工程学院,重庆400065

出　　处：《通信技术》2016年第5期519-523,共5页Communications Technology

基　　金：重庆市基础与前沿研究计划项目(No.cstc2015jcyj A40040);重庆邮电大学"文峰骨干教师培养计划项目"资助~~

摘　　要：介绍了几种面向5G的新型多载波传输技术:滤波器组多载波(FBMC,Filter Bank Multicarrier)、通用滤波多载波(UFMC,Universal Filtered Multicarrier)和广义频分复用(GFDM,Generalized Frequency Division Multiplexing)的基本原理,并从第五代移动通信系统(5G)支持的应用场景和技术需求的角度对三种多载波传输技术的优缺点进行比较。研究表明三种多载波传输技术的带外泄露较低,FBMC系统不使用CP(CP,Cyclic Prefix),因此具有很高的时频效率,但FBMC系统帧的长度比较长,不适合短包类业务;UFMC对一组连续的子载波滤波,可以支持较短的帧结构,但UFMC不使用CP,复杂度较高;GFDM基于独立的块调制,具有灵活的帧结构,鲁棒性好,复杂度比前两者低,便于实际应用。This paper describes several 5 G-oriented multicarrier transmission technologies, including H^MIG （Filter Bank Muhlcarrier）,UFMC （Universal Filtered Multicarrier） and GFDM （Generalized Frequency Division Multiplexing）. In view of 5G application scenario and technical requirement, the three candidate muhicarrier transmission technologies have fairly low out-of-band radiation, FBMC does not apply CP （Cyclic Prefix） and thus is able to approach a higher time-frequency efficiency, while with fairly long frame length,is not applicable to short-packet service. Meanwhile UFMC, with filtering on a group of sub- carriers,can support short-frame structure, but without applying cyclic prefix （CP）, thus has fairly high complexity. GFDM, based on the modulation of independent blocks, with flexible frame structure and good robustness, including low-complexity implementation, is suitable for practical applications.

关 键 词：多载波 第五代移动通信系统 滤波器组多载波 通用滤波多载波 广义频分复用 

分 类 号：TN929.5[电子电信—通信与信息系统]