The invention discloses a UWOC
system optimal
relay position determination method based on an AUV
relay in a complex marine environment, and belongs to the technical field of
underwater wireless optical communication. According to received signals of a UWOC
system at a
relay node and a destination node in a complex ocean
fading environment with
underwater obstacles, an average
outage probability mathematical expression Pout (psi s, psi d) of a two-hop UWOC
system working in an R-space for AUV relay is solved, namely, the system
outage probability is a binary function of a source
elevation angle psi s and a destination
elevation angle psi d. And calculating a change curve of Pout (psi s, psi D) along with the target
elevation angle psi d in a mode of fixing the source elevation angle psi s, and searching the psi d corresponding to the minimum value of the
outage probability of the system, so as to obtain the optimal relay position of the AUV corresponding to different source elevation angles psi s. According to the method for determining the optimal relay position of the UWOC system based on the AUV relay provided by the invention, a strategy of optimal position
layout can be carried out on the AUV
mobile relay node on a
communication link with
direct path obstacles and complex ocean
fading, so that reference is provided for upper network planning of the system.