High-throughput satellite communication system beam hopping method

Abstract

The invention provides a high-throughput satellite communication system beam hopping method. According to the method, uniform clustering is carried out on total beams according to a business requirement, an objective function is established for the requirement, whether edge beam distance of adjacent clusters is equal to 2R and the same are in working status is monitored, if not, performance satisfies direct calculation of frequency spectrum efficiency, and if yes, an interference avoidance measure is taken, then the frequency spectrum efficiency is calculated, a KKT condition is used for solving of time slot allocation numbers of a closed-form solution, finally, rounding-down is carried out according to values of the closed-form solution, the same is optimized, and optimal capacity allocation is obtained. The method has the advantages that a dynamic requirement of capacity can be satisfied, frequency spectrum efficiency can be improved, and performance decreasing caused by interferenceof the same frequency can also be avoided.

Description

technical field [0001] The invention relates to a beam-hopping method for a high-throughput satellite communication system, in particular to a resource allocation method based on time-slicing interference avoidance and on-demand coverage, and belongs to the technical field of satellite communication. Background technique [0002] In a traditional multi-beam satellite communication system, the power and frequency resources assigned to each beam are only a part of the entire satellite resource, and the system can only schedule available resources within each beam range to meet the diverse needs of users. demand, resulting in "fragmented" scheduling of satellite resources; with the further increase in the capacity of the multi-beam satellite communication system, the number of spot beams will often increase, which not only leads to the aggravation of the "fragmented" phenomenon of satellite resources, but also causes satellite loads. The corresponding increase will eventually l...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a high-throughput satellite communication system beam-hopping method by studying the existing model and overcoming the deficiencies of the prior art. In order to meet the needs of multiple users at the same time, multiple In the case of co-frequency interference, an interference avoidance mechanism is introduced, so that the improved algorithm can not only meet the dynamic demand of capacity, but also avoid performance degradation caused by co-frequency interference and improve spectrum efficiency.

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