FPGA Implementation of Channel Codec for Optical Intersatellite Link Communication System

The Optical Intersatellite Link (OISL) communication system is an important FSO technology with the increasing demand for high speed and high bandwidth internet. FSO channel condition is highly noisy therefore, a channel codec must be applied to the system to increase reliability. In this research, a FPGA board is utilized to implement channel codec for OISL systems. The main channel codec is based on a parallel arrangement of Reed-Solomon code for large data streams. CRC, Interleaver, Scrambler and LPC are added to improve the channel codec. The implementation results in low resource usage, but with high usage of memory blocks.