太赫兹科学与电子信息学报, 2018, 16 (6): 962, 网络出版: 2019-06-10
面向5G无线通信系统中若干物理层技术探讨
On some physical layer technology in 5G wireless communication system
毫米波 波束形成 信道模型 大规模多输入多输出 5G 5G millimeter wave beamforming channel model massive Multiple-Input Multiple-Output
摘要
各种智能设备的爆发式增加，新兴多媒体应用的引入以及无线数据需求的指数增长已经对现有蜂窝网络造成了重大负担。与第四代(4G)长期演进(LTE)通信系统相比，第五代(5G)无线通信系统容量要求达到1?000倍以上才能满足用户需求。从无线通信的物理层角度出发，探讨几种应用在5G通信的潜在技术，如新型信道模型估计、定向天线设计、波束成形算法和大规模多输入多输出(MIMO)技术。最后，指出当前物理层技术存在的主要问题并探讨了5G通信系统中的可能发展方向。
Abstract
With the explosive growth of various smart devices and the introduction of new multimedia applications, the exponential growth of wireless data demand has caused a significant burden on the existing cellular network. Compared with the fourth-generation(4G) Long-Term Evolution(LTE) communication system, the capacity of the fifth generation(5G) wireless communication system requires more than 1 000 times to meet the user demand. From the perspective of the physical layer of wireless communication, some potential techniques applied in 5G communication are discussed, such as the new channel model estimation, design of directional antenna, beam forming algorithm and the technology of massive Multiple- Input Multiple-Output(MIMO). Finally, the main problems existing in physical layer technology and the possible development direction of 5G communication system are pointed out.
万菁晶, 陆怡琪, 田梦倩, 朱颖, 桂冠. 面向5G无线通信系统中若干物理层技术探讨[J]. 太赫兹科学与电子信息学报, 2018, 16(6): 962. WAN Jingjing, LU Yiqi, TIAN Mengqian, ZHU Ying, GUI Guan. On some physical layer technology in 5G wireless communication system[J]. Journal of terahertz science and electronic information technology, 2018, 16(6): 962.
PDF全文
