Also an optimized updating radius is suggested based on experiments to balance the overhead of Location Updating (LU) and Location Paging (cheap evening dresses ). The results are shorter single paging time, more efficient paging and hand-off process.In chapter 2, the custom made prom dresses system call processing spot beam determination the flat iron shop for us algorithm is proposed with the combination of terrestrial mobile communication research and the features of satellite communication. In addition, STK simulations demonstrate the effectiveness of the 12hot cheap prom dresses algorithm.In chapter 3, the analysis of the two factors affecting the ST algorithm is made. And a discount wedding dresses user mobile model is introduced, which adopts dynamic distance-based updating method. Its movement distance obeys index distribution, whereas its movement direction obeys blog lace wedding dresses uniform distribution.In chapter 4, hand-off schemes for LEO satellite communication systems are studied. With the help of the ST algorithm, the hand-off schemes can further reduce the signaling overhead.The dissertation is summarized in the last chapter. Finally, the future research work is pointed out.
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