Operating method of FSO communication system based on IHDAF protocol
A communication system and working method technology, applied in transmission systems, electromagnetic wave transmission systems, electrical components, etc., can solve the problems of inflexible channel adaptation, increased system complexity, selection of transmission methods, etc., to improve system transmission reliability, suppress Path loss, the effect of obvious performance improvement
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[0029] A working method of a Free Space Optical (FSO) communication system based on the Incremental Hybrid Decoding Amplification Fronthaul (IHDAF) protocol, implemented by the following communication systems, such as figure 1 As shown, the system includes a source node, a relay node and a destination node. The source node is equipped with two laser transmitters for generating and emitting Gaussian laser beams; the relay node is equipped with a laser transmitter and a photodetector to realize Gaussian laser forwarding and detection respectively; the destination node is equipped with two photodetectors, the system adopts the half-duplex working mode, and its data transmission process includes three steps, first mapping the source information into M-order Pulse Amplitude Modulation (PAM) Constellation Symbol x s , is the constellation set of M-order PAM, where the m-th constellation symbol can be expressed as where P t is the average transmit power of the optical signal, ...
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