Predistortion of high speed optical OFDM signal for aliasing-free receiving in multiple low-bandwidth receiver system

• 来源期刊: 中国光学快报(英文版)
• 学科: 工学
• 关键词: 信号接收系统 信号带宽 预失真 OFDM 快速傅立叶变换 别名 光学 正交频分复用
• 年，卷（期）: 2010,（4）
• 所属期刊栏目: Fiber Optics and Optical Communications
• 页码范围: 377-380
• 页数: 4页
• 分类号: TN92 V443.1
• 语种: 英文

摘要

A cost-effective method of multi-receiver optical orthogonal frequency-division multiplexing(OOFDM) system is proposed to reduce the requirement for the speed of the receiver and the size of fast Fourier transform(FFT).The sampling rate of analog-to-digital converters(ADCs) can be reduced to 1/N of the original signal bandwidth in an N-receiver system.Aided by signal predistortion at the transmitter, aliasing-free signal can be retrieved independently and directly at the low speed receivers.A back-to-bac...