Analytical Research on Factors of Influencing the Satellite Data File Ground Transmission Efficiency
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We first list the two factors of influencing the satellite data file transmission efficiency in the paper, namely the number of files and the number of threads respectively. Application control variable method designs the satellite data file transmission test scheme. By changing the variable value a large number of repeated tests have been done so as to obtain the average transmission time. We compare and analyze the file transmission efficiency under the condition of combination for three different variable values to get better transmission efficiency by using the variable combinations of single file and multiple threads. Thus, we do the deep research on the choice for the number of threads. In 50 ms network delay test environment, using three or four threads to transmit the files needs relatively short time. It proves that the number of threads of transmitting the files needs to be tested and be confirmed according to the specific network environment.
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