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