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Integration system of photon-assisted W-band millimeter wave wireless communication and free space optical communication based on OFDM signal transmission

机译:基于OFDM信号传输的光子辅助W波段毫米波无线通信与自由空间光通信集成系统

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摘要

In this paper, we propose and experimentally demonstrate a novel multi-access orthogonal frequency division multiplexing (OFDM) signal transmission system for free space optical communication and photon-assisted W-band millimeter-wave (mm-wave) communication. This new structure can combine the advantages of the free space optical communication and the W-band mm-wave wireless communication. Besides, the OFDM signal with high spectral efficiency and anti-interference capability can improve the data transmission rate and flexibility. Furthermore, it can adapt to the requirements of different communication scenarios. Utilizing the intra-symbol frequency-domain averaging (ISFA) technique and the discrete Fourier transform-spread (DFT-Spread) technique, 1Gbaud 16-ary quadrature amplitude modulation (16QAM) OFDM signal is transmitted successfully with the distance of 100 m for single-mode fiber (SMF), 100 m for FSO link and 4 m for wireless. The BER is under the soft-decision Forward Error Correction (SD-FEC) threshold of 2 x 10(-2). To our knowledge, this is the first time to realize the transmission of OFDM signal in the integration system of free space optical communication and photon-assisted W-band mm-wave communication.
机译:在本文中,我们提出并实验证明了一种新颖的用于自由空间光通信和光子辅助W波段毫米波(mm-wave)通信的多址正交频分多路复用(OFDM)信号传输系统。这种新结构可以结合自由空间光通信和W波段毫米波无线通信的优势。此外,具有高频谱效率和抗干扰能力的OFDM信号可以提高数据传输速率和灵活性。此外,它可以适应不同通信场景的要求。利用符号内频域平均(ISFA)技术和离散傅立叶变换扩展(DFT-Spread)技术,可以成功发送1Gbaud 16进制正交调幅(16QAM)OFDM信号,单个信号的距离为100 m模光纤(SMF),FSO链路100 m,无线4 m。 BER在2 x 10(-2)的软判决前向纠错(SD-FEC)阈值以下。据我们所知,这是第一次在自由空间光通信和光子辅助W波段毫米波通信的集成系统中实现OFDM信号的传输。

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