Inter-satellite link power distribution method for heterogeneous scene

Abstract

The invention provides a heterogeneous scene-oriented inter-satellite link power distribution method. The method comprises the following steps of: updating a current inter-satellite link gain parameter between medium and low orbit satellites; respectively updating the residual visible time convergence coefficient and the residual visible time penalty coefficient according to the orbital period and the normalized throughput of the low-orbit satellite so as to obtain a residual visible time cost penalty function; obtaining a power output result of each low earth orbit satellite after respective gaming based on the overall utility gaming; calculating a utility value and an out-of-cluster threshold value of each low-orbit satellite in the cluster by using a power output result, and performing out-of-cluster processing on the low-orbit satellites of which the utility values are lower than the out-of-cluster threshold value; and entering the next time slot, updating the remaining visible time of all the low earth orbit satellites, and initializing the remaining visible time of all the low earth orbit satellites newly added into the cluster. According to the inter-satellite link power distribution method oriented to the heterogeneous scene, the overall performance of a medium and low orbit satellite network is optimized by designing a reasonable utility reward and punishment function and an off-cluster threshold scheme.

Description

technical field [0001] The invention belongs to the field of satellite communication architecture design, and in particular relates to an inter-satellite link power distribution method oriented to heterogeneous scenarios. Background technique [0002] A non-terrestrial network is an extension of a terrestrial network to supplement remote areas that terrestrial networks cannot or cannot serve effectively. However, due to the special geographical nature of the non-terrestrial network, it has higher technical requirements, and the satellites in the non-terrestrial network are expensive, making the number of satellites in the non-terrestrial network much lower than the number of equipment in the terrestrial network. On the other hand, the accumulation of satellite resources in my country is insufficient. Most of the medium and low orbit satellite orbit resources have been divided up by other countries. Therefore, how to use the limited medium and low orbit satellite resources an...

AI Technical Summary

Problems solved by technology

If there are multiple complex time-varying low-orbit satellites in the network, these low-orbit satellites interfere with each other. Due to interference and other factors, it cannot be guaranteed that these low-orbit satellites can benefit the overall performance of the network when they leave the network at fixed points. Therefore, This strategy is only applicable to the situation where the members of low-orbit satellites in the network are determined and single

[0006] 2) Real-time pilot channel measurement. When the channel quality is lower than a certain threshold, the low-orbit satellite will be triggered to leave the network. However, the continuous pilot monitoring of the low-orbit satellite will greatly increase the power consumption of the satellite itself, which will affect the power consumption of the low-orbit satellite battery. In limited cases, it is not applicable

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