OFDM旋转调制技术探析

Some Analyses of OFDM Rotating Modulation Technology

[摘要]正交频分复用(OFDM)是一种特殊的多载波传输方案,它既是一种调制技术,也是一种复用技术。OFDM技术具有许多优点,是下一代移动通信系统的主流调制和复用技术。文章介绍了OFDM的基本原理,说明采用旋转调制的OFDM技术对通信性能的改善,并与传统的调制方式进行比较。

Orthogonal frequency-division multiplexing（OFDM）refers to a special frequency-division transmitting plan, which is not only a modulation technology but also a multiplexing one.It has many merits and is a main-stream modulation and multiplexing technology in next-generation mobile telecommunication system.The article introduces its basic principles and elaborates that the application of OFDM featured by rotating modulation can improve the telecommunication performance. In addition,the article also compares it with traditional modulation ways.