无线通信中的OFDM技术  

OFDM in Wireless Communication

作　　者：罗晓琴[1] 

机构地区：[1]闽南理工学院,福建石狮362700

出　　处：《仪器仪表用户》2014年第5期14-15,13,共3页Instrumentation

摘　　要：带宽在移动通信当中是稀缺资源,为了迎合不断增加的移动通信的业务量及传输速率,必须要采用先进的技术有效的提升频谱资源的利用率。OFDM(Orthogonal Frequency Division Multiplexing)能够将高速的数据流分解为若干个并行传输的比特流,极大的降低了信息传输的速率,从而使整个系统抗码间干扰和信道衰落能力增强,是一种非常适合于无线环境的高速数据传输的技术。Bandwidth is a scarce resource in mobile communication, in order to cater to the volume of business and the transmission rate increased in mobile communication, we must use the advanced technology to effectively improve the utilization of spectrum resources. OFDM （Orthogonal Frequency Division Multiplexing） can decomposes the high speed data stream into several parallel transmission bit stream, greatly reducing the rate of information transmission, so that the whole system against intersymbol interference and fading channel capacity, is a high-speed data transmission is very suitable for wireless environment technology.

关 键 词：FDM OFDM 移动通信 多载波调制 

分 类 号：TN014[电子电信—物理电子学]