Demonstration of Spatial Modulation Using a Novel Active Transmitter Detection Scheme with Signal Space Diversity in Optical Wireless Communications
<p>The architecture of the overall indoor OWC system.</p> "> Figure 2
<p>Signal pre-distortion technique. (<b>a</b>) Signal flow for pre-distortion. (<b>b</b>) Example of the generation of a pre-distorted CAP waveform.</p> "> Figure 3
<p>Experimental setup. (<b>a</b>) Schematic diagram. (<b>b</b>) Photo.</p> "> Figure 4
<p>BER of the SM with SSD using the proposed novel active transmitter detection scheme. (<b>a</b>) ideal detection vs. the proposed detection. (<b>b</b>) Different channel gain distributions. (<b>c</b>) Different suppress ratios <span class="html-italic">τ</span>.</p> ">
Abstract
:1. Introduction
2. Principle of SM Using a Novel Active Transmitter Detection Scheme with SSD
2.1. System Architecture
2.2. Digital Implementation of SM with SSD
2.3. The Novel Active Transmitter Detection Scheme
2.3.1. Signal Pre-Distortion Technique
2.3.2. Power-Based Statistical Method for Active Transmitter Detection
3. Experimental Setup and Results
3.1. Experimental Setup
3.2. Results and Discussions
4. Conclusions
Author Contributions
Funding
Conflicts of Interest
References
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Device Name | Model | Parameters |
---|---|---|
Waveform generator | Tektronix AWG 7102 | 10 GS/s 4-CAP (oversampling factor = 4) Vpp = 1 V Sample length = 20,000 |
Directly modulated laser (DML) | Gooch and Housego EM657 | 1549.6 nm and 1550.3 nm |
Optical delay line | General Photonics Corp. VariDelayTM | 0.2 cm (13.3 ps) |
Attenuator | EigenLight power monitor 420 WDM | Maximum reading = 3.5 dBm |
Photodetector | Discovery Semiconductor Inc. DSC-R402 | DC Responsivity @ 1550 nm: 0.84 A/W −3 dB Bandwidth: 10 GHz |
Oscilloscope | Tektronix TDS6154C | 40 GS/s Oversampling factor = 4 Record length = 200,000 |
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Song, T.; Nirmalathas, A.; Lim, C. Demonstration of Spatial Modulation Using a Novel Active Transmitter Detection Scheme with Signal Space Diversity in Optical Wireless Communications. Sensors 2022, 22, 9014. https://doi.org/10.3390/s22229014
Song T, Nirmalathas A, Lim C. Demonstration of Spatial Modulation Using a Novel Active Transmitter Detection Scheme with Signal Space Diversity in Optical Wireless Communications. Sensors. 2022; 22(22):9014. https://doi.org/10.3390/s22229014
Chicago/Turabian StyleSong, Tingting, Ampalavanapillai Nirmalathas, and Christina Lim. 2022. "Demonstration of Spatial Modulation Using a Novel Active Transmitter Detection Scheme with Signal Space Diversity in Optical Wireless Communications" Sensors 22, no. 22: 9014. https://doi.org/10.3390/s22229014