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This paper systematically analyzed resource application allocation process and the timing relationship of resource application in aeronautical mobile communication system’s link layer. This paper aimed at a new generation space ground data link technology which was called L-band digital aeronautical communication system type-1 (LDACS1). Based on the traditional traffic predictionbased resource application algorithm, this paper proposed an algorithm based on the combination of feedback control and prediction of exponential smoothing, to compensate for the lack of accuracy of resource application amount in existing algorithms of forecasting. The algorithm introduced smoothing factor to make the application bandwidth smooth. Through reducing the volatility of applications, the algorithm will improve the the difference between the amount of application and allocation and reduce fluctuations in the queue which caused by inaccurate application prediction, thereby reducing the time delay. The simulation results show that the performance of the algorithm is much better than the available resource application algorithms. Under the environment of different degrees of load, this algorithm can reduce time delay and packet loss rate.

Radio Resource Application in Aeronautical Mobile Communication System