Method and device for capacity optimization of satellite-space-ground collaborative marine communication network

Abstract

Embodiments of the present invention provide a method and device for optimizing the capacity of a satellite-space-ground collaborative marine communication network. The large-scale fading channel between the shore-based base station of the offshore cell, the UAV and the remote sea terminal, under the premise of ensuring that the interference suffered by the remote sea terminal is less than the preset value, an optimization problem model is constructed; the goal of the optimization problem model is: to maximize The total rate of all offshore cells; calculate the optimal solution of the optimization problem model, and determine the transmit power of the base station of each offshore cell according to the optimal solution. The method and device for optimizing the capacity of the satellite-space-ground collaborative marine communication network provided by the embodiments of the present invention control the interference to marine satellite users by optimizing the distribution of the power of the unmanned aerial vehicle and shore-based base station in the coastal area in the marine communication scenario, so as to realize the offshore The transmission rate of the cell is maximized, and the performance of the satellite-air-ground collaborative network is improved.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a method and device for optimizing the capacity of a satellite-space-ground cooperative marine communication network. Background technique [0002] In recent years, with the ever-increasing demand for ocean exploration, shipping, military and other aspects, as well as the increasingly frequent activities of human beings at sea, broadband communication in sea area has received more and more attention. [0003] However, due to the particularity of its scenarios, the development speed of sea area communication is relatively slow. At present, offshore wireless communication faces the problems of difficult deployment of shore-based base stations, few available sites, and limited coverage; although satellite communication can solve the coverage problem of sea area communication, its high cost and long transmission delay limit sea area communication Development in the direction ...

AI Technical Summary

Problems solved by technology

The satellite system and the ground system are almost independent of each other, and the allocation of communication frequency bands and bandwidth is not uniform, and the interference problems caused by the incompatibility between the systems have greatly restricted the development of sea area communications.

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