A method and device for UAV base station path planning and bandwidth resource allocation
A technology for bandwidth resource and path planning, applied in network planning, wireless communication, radio transmission systems, etc., can solve problems such as difficulty in handling user movement, high computational complexity, and difficult application, and achieve good communication services and computational complexity. low degree of effect
Active Publication Date: 2021-10-26
TSINGHUA UNIV
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Problems solved by technology
However, the calculation method based on the traditional convex optimization theory is very complex, there are a lot of simplifications to the problem, and it is difficult to deal with problems such as user movement, so it is difficult to apply in practice
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[0057] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.
[0058] figure 1 It shows a schematic flowchart of a UAV base station path planning and bandwidth resource allocation method provided by this embodiment, including:
[0059] S11. Obtain the current environment state.
[0060] In the embodiment of the present invention, to enable the UAV base station to perform path planning and bandwidth resource allocation, it is first necessary to acquire the current environment status. The UAV base station determines the flight path and allocates bandwidth resources to each user according to the obtained current environmental status.
[0061] In the embodiment of the present invention, the current environmental status includes at...
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The embodiment of the present invention discloses a method and device for UAV base station path planning and bandwidth resource allocation. The method includes: obtaining the current environment state; based on the current environment state and the preset action network, determining the relevant Action: According to the relevant action, determine the flight path of the UAV base station and the bandwidth allocated to each user by the UAV base station. The embodiment of the present invention determines the relevant actions of the UAV base station based on the obtained current environment state and the preset action network; according to the relevant actions, determines the flight path of the UAV base station and the bandwidth allocated to each user by the UAV base station. This method of using deep reinforcement learning for UAV base station path planning and bandwidth resource allocation provides users with better communication services with low computational complexity, and even if the user is mobile, the UAV base station can pass Adjusted flight paths to handle things like user movement nicely.
Description
technical field [0001] The invention relates to the technical field of unmanned aerial vehicle base station communication, in particular to a method and device for path planning and bandwidth resource allocation of an unmanned aerial vehicle base station. Background technique [0002] UAV base stations can establish emergency communications after natural disasters due to their high mobility. However, UAV base stations have the disadvantage of limited battery energy and cannot provide communication services for a long time. Therefore, UAV base stations are required to provide energy-efficient services. However, the related trajectory optimization and resource allocation problems are often NP-Hard (Non-deterministicPolynomial hard problem, NP difficult problem) problems, which are difficult to solve directly. [0003] The current UAV base station trajectory optimization and resource allocation method mainly transforms the original difficult-to-optimize complex non-convex prob...
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IPC IPC(8): H04W16/18H04W40/10H04W72/08H04B7/185H04W72/54
CPCH04W16/18H04W40/10H04B7/18504H04W72/542
Inventor 高飞飞丁瑞金张煜
Owner TSINGHUA UNIV