摘要
在现代4G移动通信系统中,OFDM技术作为重要的物理传输技术在其中发挥了关键作用。在此背景下,本文首先介绍了OFDM技术及该技术的核心优势,详细描述了OFDM技术在4G通信中的应用,其中包括信道估计、同步及同步误差分析、多址技术等技术关键难题。最后,分析了OFDM技术在4G通信应用过程中需要克服的技术难点。
In the modem 4G mobile communication system, OFDM technology plays an important role as an important physical transmission technology. Under this background, this paper introduces the OFDM technology and the core technology advantages, describes the application of OFDM technology in 4G communication, including key analysis, channel estimation, synchronization and synchronization error of multiple access technology and other technical problems. Finally, it analyzes the technical difficulties that OFDM technology needs to overcome in the application of 4G communication.
出处
《数字技术与应用》
2017年第7期42-43,共2页
Digital Technology & Application
关键词
OFDM技术
4G移动通信
物理传输技术
信道估计
OFDM technology
4G mobile communication
physical transmission technology
channel estimation
