Simulink Modeling of Extended Golay Coding Technique for Coaxial Cable Telemetry

ABSTRACT One of the major challenges in a digital telemetry system is the recovery of data transmitted over a noisy medium. The error which gets introduced in the channel is due to noise and interference leads to corruption of the system. To overcome these issues different error correction coding techniques such as Block code, Turbo code, Hamming code etc. are used. Extended Golay coding is a known coding technique capable of correcting any combination of three bits or fewer random errors in a block of twenty four bits. It allows high speed data transmission with low latency and enables secure communication. This paper explains the SIMULINK modelling of extended Golay encoder and decoder for a simple coaxial cable telemetry system. Analysis of bit error rate with different noise factor is also incorporated. A comparative study of Golay coding, Hamming and Reed Solomon (RS) coding is also discussed. This model can be used for generating a Simulink model to implement the error correction algorithm of any line coding data over single core coaxial cable.