Simulink Implementation of Optical CDMA System Using Orthogonal Codes

Resource Overview

Simulink-based optical CDMA system model leveraging orthogonal coding for multi-user communication with enhanced capacity and interference resistance

Detailed Documentation

This Simulink model implements an optical CDMA (Code Division Multiple Access) system utilizing orthogonal codes. The model demonstrates multi-user simultaneous transmission in optical fiber communication through orthogonal code assignment, where each user is allocated a unique orthogonal signature sequence. The implementation employs correlators at the receiver end for code separation and signal detection. Orthogonal codes enhance system capacity by allowing parallel data transmission and improve anti-interference performance through cross-correlation minimization. Researchers can use this model to analyze CDMA system performance metrics like bit error rate (BER), conduct parameter optimization tests, and evaluate different orthogonal code families (e.g., Walsh-Hadamard codes). The modular structure enables easy configuration of code length, user count, and channel parameters for performance studies.