A self-organizing network data transmission method for air-ground coordination

Abstract

The invention discloses an air-ground collaborative self-organizing network data transmission method, including: constructing a ground self-organizing network data transmission system model assisted by an unmanned aerial vehicle; minimizing the maximum end-to-end time delay of data packets as the optimization goal, Construct a joint optimization problem related to UAV track and ground node access; construct a system MDP model for UAV-assisted ground self-organizing network transmission data packets; use deep reinforcement learning algorithm to solve the joint optimization problem, and solve the results It is applied to air-ground collaborative ad hoc network data transmission to reduce the end-to-end delay of data packets. The present invention uses a deep reinforcement learning algorithm to solve the joint optimization problem of UAV track and ground node access, which can realize fast online decision-making, enable flexible transmission of data packets in better line-of-sight links, and improve the transmission of self-organizing networks performance and expand the scope of application of self-organizing networks.

Description

technical field [0001] The invention belongs to the technical field of wireless communication, and in particular relates to an ad hoc network data transmission method for realizing air-ground coordination by applying deep reinforcement learning. Background technique [0002] An ad hoc network is a collection of wireless nodes. The communication between nodes in the network does not depend on any pre-existing basic routing facilities, but can communicate directly or rely on other nodes as relay nodes for communication. Its distributed wireless and autonomous The configuration feature makes it widely used. However, when multiple nodes transmit packets to a relay node at the same time, it will cause the relay node to be overloaded. This is due to the limited transmission rate of nodes and the large number of data packets, which increases the transmission delay of the system. [0003] UAV-assisted communication has the characteristics of high mobility, fast and flexible deploy...

AI Technical Summary

Problems solved by technology

However, the high mobility of the UAV and the dynamic environment caused by the data packet transmission in the self-organizing network on the ground make the nodes that need UAV-assisted transmission change dynamically, and the dynamically changing environment will make it difficult to select the transmission path of the data packet. Moreover, the UAV track planning problem is closely coupled with the ground node access planning problem, making it difficult to solve the optimal UAV-assisted ground self-organizing network decision-making scheme.

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