Fault Tolerant Spectral/Spatial Optical Code Division Multiple Access Passive Optical Network.

Area of Science:

• Telecommunications Engineering
• Network Optimization
• Optical Networks

Background:

• High-capacity communication networks require high throughput and low latency.
• Network reliability is crucial for maintaining connection availability.
• Existing 2D spectral-spatial OCDMA PONs face challenges in maximizing reliability.

Purpose of the Study:

• To optimize a 2D spectral-spatial OCDMA PON for maximum connection availability.
• To maintain high communication capacity and manage capital expenditure.
• To improve the robustness of optical networks against connection failures.

Main Methods:

• Implemented a ring topology at the feeder level for redundancy.
• Utilized pseudo-3D double-weight zero cross-correlation (DW-ZCC) codes for high transmission capacity.
• Conducted performance analysis using Optisystem simulations.

Main Results:

• The ring topology integration did not negatively impact transmission capacity.
• The optimized system maintains maximum transmission capacity at receiver sensitivities up to -19 dB.
• Reliability analysis demonstrated improved connection availability compared to the existing system.

Conclusions:

• The optimized ring-based OCDMA PON architecture enhances network reliability.
• The proposed optimization effectively balances high capacity with improved connection availability.
• This approach offers a robust solution for future high-demand communication networks.