Multi-dimensional resource joint allocation method for multi-beam satellite same-frequency networking system

A technology of co-frequency networking and joint allocation, applied in the field of satellite communications, can solve the problem of not being able to make full use of the total frequency resources of the system, and achieve the effects of improving overall delay performance, minimizing system delay, and reducing co-frequency interference.
CN113644964AActive Publication Date: 2021-11-12BEIJING UNIV OF POSTS & TELECOMM +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
BEIJING UNIV OF POSTS & TELECOMM
Publication Date
2021-11-12

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Abstract

The invention relates to a multi-dimensional resource joint allocation method for a multi-beam satellite co-frequency networking system, and belongs to the technical field of satellite communication. The method comprises the following steps: modeling a downlink data transmission scene in a multi-beam satellite same-frequency networking system, performing full-frequency multiplexing on frequency resources of satellites in the scene, performing joint allocation of time slots, bandwidths and power resources of users according to user-level resource allocation, modeling an allocation process as a Markov process, using a multi-beam satellite communication system as an environment state, inputting a near-end strategy optimization PPO network for interaction, selecting a user to be served in a current time slot by using the PPO network, and allocating bandwidth and power resources to the user. According to the method disclosed by the invention, the coordinated scheduling user is selected in each time slot and the frequency and power resources are reasonably allocated for the user, so that relatively small co-frequency interference between the users is kept in a full-frequency multiplexing scene, the data transmission rate in the co-frequency multiplexing scene is improved, and the purpose of minimizing the system time delay is achieved.
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Description

technical field

[0001] The invention belongs to the technical field of satellite communication, and in particular relates to a joint allocation method of multi-beam satellite time slots, bandwidth and power resources based on near-end strategy optimization in a multi-beam satellite co-frequency networking system. Background technique

[0002] Due to its seamless coverage and strong invulnerability, satellite communication plays an important role in the fields of maritime and aviation communications. It can also effectively solve the problem of connecting users in remote areas that cannot be covered by ground networks. With the rapid development of terrestrial Internet applications, satellite communications need to be transformed from traditional simple TV broadcasting services to high-speed broadband data services to provide large-scale user connections. At present, most satellite communication systems use multi-beam antenna technology to cover the service area. High-through...

Claims

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