2D-OFDM Packages Review - WordPress.com
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2D-OFDM Packages Review
OpticalPress.Com
April 2020
Package 2: ACO/DCO-OFDM Optical Link
Package 1: ACO/DCO-OFDM Simulation
Package 3: Low-density DCO-OFDM Optical Link
Simulation + B2B Package
ACO-OFDM /DCO-OFDM
❑ This allows for choosing different modulation modes for Tx, including
• 2D ACO-OFDM or 2D DCO-OFDM
• Changeable clipping factor for reducing PAPR
• Enable Inner FEC and spatial pilots
❑ And configuring the simulation of noisy channel (SNR in dB).
1
B2B – Tab 1 Configuration
Package 1: B2B Link
ACO-OFDM or DCO-OFDMChange clipping factor for PAPR
Choose enable FEC and pilotsChoose the TX display size (per pixel)
B2B– Tab 2: 2D Hermitian mapping
Package 1: B2B Link
B2B – Tab 3: Display TX Code
Package 1: B2B Link
Control Optical Clock Rate
TX Code
B2B – Tab 4: 1D and 2D Constellation
Package 1: B2B Link
1D Constellation2D Constellation
B2B – Tab 5: Decode data (No noise)
Package 1: B2B Link
Captured pixels
Decoding data without noise
B2B – Tab 6: SNR and BER
Package 1: B2B Link
Simulate SNR
BER vs SNRRX Constellation
RX Decoding Data
Optical Link Package
❑ This allows for testing the performance under real-world circumstances.
❑ Compared to Simulation package, this package has modification so that it works better with camera!
2
ACO-OFDM /DCO-OFDM
Package 2: Optical Link
Video DEMO
Optical Link Package (+)
❑ This allows for testing the performance under real-world circumstances.
❑ Compared to the 2nd package, this package has optimal modification for DCO-OFDM.
3
DCO-OFDM+
TX – Tab 1 Configuration
Package 3
TX – Tab 2 (Display TX code)
Package 3
TX – Tab 3 (Constellation Test)
Package 3
TX – Tab 4 (B2B Link Test)
Package 3
RX 1 – Auto Detect TX
Package 3
RX 2 – Tab 1 Auto-threshold Preamble
Package 3
RX – Tab 2: Decode Data +Constellation
Package 3
RX – Tab 3: BER Count
Package 3