摘要
实验研究了工作在W波段的正交频分复用毫米波传输系统的传输特性。系统中应用了优化信道估计的符号内频域平均技术和减少信号峰均比的基于离散傅里叶变换的扩频技术(DFT-Spread)来提高传输性能。实验成功地将21.2 Gb/s 84.5 GHz载频的16QAM OFDM信号传输2 m的无线距离,误码率控制在7%冗余度的软判决纠错码门限内(比特误码率为3.8×10-3)。
A millimeter-wave system at W-band with sixteen Quadrature Amplitude Modulation(16QAM) optical Orthogonal Frequency Division Multiplexing(OFDM) signals transmission is experimentally demonstrated. Intra-Symbol Frequency-domain Averaging(ISFA) based channel estimation and the Discrete Fourier Transform-Spread(DFT-Spread) techniques are employed to improve the system performance. A 21.2 Gbit/s 16 QAM OFDM signal at 84.5 GHz can be successfully transmitted over 2 m wireless delivery under a 7% soft-decision forward-error-correction threshold(bit error rate of 3.8×10-3).
出处
《太赫兹科学与电子信息学报》
2016年第1期53-57,共5页
Journal of Terahertz Science and Electronic Information Technology
基金
国家自然科学基金资助项目(No.61325002
No.61250018)
上海市科委基金资助项目(No.13JC1400700)
关键词
W波段
光载毫米波
符号内频域平均
基于离散傅里叶变换的扩频技术
W band
Radio over Fiber(Ro F)
Intra-Symbol Frequency-domain Averaging
Discrete Fourier Transform-Spread techniques
