Теоретичні аспекти завадостійкого кодування в системах оптичної передачі та збереження даних

Abstract

This paper explores the theoretical foundations of error-correction coding within optical data transmission and storage systems. As data rates in backbone networks reach terabit levels, signal reliability is increasingly compromised by physical impairments such as optical noise, chromatic dispersion, and non-linear effects in fibers. The study analyzes the Shannon-Hartley theorem as a fundamental limit for channel capacity and examines the role of Forward Error Correction (FEC) in mitigating Bit Error Rate (BER) without retransmission. Special attention is given to the algorithmic implementation of Reed-Solomon codes and modern Open Forward Error Correction (O-FEC) technologies. The research demonstrates how mathematical redundancy and iterative decoding processes allow optical systems to approach the Shannon limit, ensuring the stability of digital infrastructure under complex physical conditions.