在基于rgb - led的FSO通信系统中采用720mbps 64-QAM-OFDM单片机传输

2016 Thirteenth International Conference on Wireless and Optical Communications Networks (WOCN) Pub Date : 2016-07-01 DOI:10.1109/WOCN.2016.7759028

V. Krishna, R. Singhal

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引用次数: 6

摘要

提出了一种采用64-QAM-OFDM信号的720mbps可见光通信系统。信号的传输是通过调制红、绿、蓝(RGB)发光二极管(led)，并在两个射频载波上对64-QAM-OFDM信号进行子载波复用(SCM)后，在自由空间光(FSO)信道上传输所有三个波长来实现的。在弱闪烁和强闪烁的影响下，在自由空间距离下对该方案的性能进行了评估。通过提出的VLC系统，可以实现高达1.2米的误码率低于fec前限制(3.8×10-3)的数据传输。

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720-Mbps 64-QAM-OFDM SCM transmission over RGB-LED-based FSO communication system

The paper proposes a 720 Mbps visible light communication (VLC) system using 64-QAM-OFDM signals. Transmission of signals is achieved by modulating red, green and blue (RGB) light emitting diodes (LEDs) and transmitting all three wavelengths over free space optical (FSO) channel after subcarrier multiplexing (SCM) of 64-QAM-OFDM signals on two RF carriers. The performance of the proposed scheme is evaluated for a free space distance under the effect of weak as well as strong scintillations. Data transmission with bit error rates under pre-FEC limit (3.8×10-3) is achieved up to 1.2 meters through the proposed VLC system.

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2016 Thirteenth International Conference on Wireless and Optical Communications Networks (WOCN)

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