A multi-user-oriented space-time-frequency resource dynamic scheduling method for relay satellites

Abstract

The invention discloses a multi-user-oriented relay satellite space-time-frequency domain resource dynamic scheduling method, comprising the following steps: 1. receiving user data streams of each channel; 2. calculating weight values ​​for each channel of user data streams; 3. Time-frequency resource blocks are allocated to each user data stream according to the weight value. The invention comprehensively considers factors such as task priority, time delay requirement, packet loss rate, throughput and application time sequence, and allocates reasonable satellite resources for multiple users in the space-time domain. For the relay satellite control and management center, it is conducive to improving the spectrum utilization rate and network throughput of relay satellite resources; from the perspective of users, it is conducive to ensuring the service quality of different services of users and meeting user needs.

Description

technical field [0001] The invention belongs to relay satellite communication multi-user access technology and solves the problem of dynamic scheduling of relay satellite resources used by multiple users. The present invention comprehensively considers influencing factors such as system throughput, task priority, user signal quality, and task delay requirements, and proposes a multi-user-oriented relay satellite space-time-frequency domain resource dynamic scheduling model. This technology innovatively finds an improved relay satellite resource allocation method between system throughput and multi-user fairness, which can improve the spectrum utilization and network throughput of relay satellite resources. [0002] technical background [0003] In relay satellite communication systems, space-time-frequency domain resource scheduling is a research content that cannot be ignored, and plays a vital role in improving user service quality. From the perspective of the relay satell...

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Problems solved by technology

[0025] As more and more wireless communication applications need to use relay satellites, domestic relay satellite communication resources are becoming more and more scarce. When multi-users use relay satellite resources, time conflicts and priority conflicts are likely to occur, which makes it difficult to allocate satellite resources. Problem, the purpose of this invention is to provide a multi-user-oriented method for dynamic scheduling of relay satellite space-time-frequency domain resources, which can further improve the utilization rate of spectrum resources and reduce the Use costs, increase user capacity, and improve economic benefits

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