[Simulink Tutorial Case 14] Simulink-based RS channel coding + 16QAM modulation and demodulation communication system performance simulation - output error code and constellation diagram

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Simulink Tutorial Contents

A preview of the learning outcomes of this course:

 

1. Software version

matlab2021a

2. Introduction to RS Channel Coding and Decoding Theory

      RS coding is a non-binary coding, and the symbols of RS coding are taken from the Galoda field GF(2m). The input information can be divided into groups of k*m bits, and each group of k symbols consists of m bits instead of one bit in the binary BCH code. Among the current RS codecs, the RS(255, 239) codec is widely used in submarine optical fiber communication systems, and the channel codec includes 239 bits of information and 16 check bytes. This pattern can correct errors up to 8 bytes. RS code (Reed-solomon codes) is a low-rate forward error correction channel coding, which is a type of multi-ary BCH code with strong error correction capability. In linear block codes, its error correction capability and coding efficiency is the highest. compared to