基于4G的移动通信系统关键技术初探

On Key Technologies in Mobile Communication System Based on 4G

多载波调制(MCM)是利用并行等带宽子信道进行信息传输的基带技术,通常采用快速傅立叶变换(FFT)技术实现,在码间干扰(ISI)环境下具有良好的性能并可避免单频干扰,增加了信号的峰值与平均值之比(PAVR),是实现4G目标的一种新技术。

Muhicarrier carriers modulate（MCM） is a kind of new technology of realizing the goal of 4 Gs, which is a kind of base - band technology of information transmission utilizing parallel equilateral bandwidth sub - channel. Realized by FFI＇, it has kilter performance in the ISI, avoids single frequency interfere, and gains PAVR of singles.