Research On Access Strategy of Handover Call In Hybrid Satellite-Terrestrial Networks

• 1、School of Electronic Engineering,Beijing University of Posts and Telecommunications,Beijing 100876

Abstract：When the target cell's or system's business is heavy in hybrid satellite-terrestrial networks, users prefer to block the newly launched calls rather than interrupt the ongoing communications due to handover. Based on combining researches on the existing handover call access strategies and two kinds of handover strategies in hybrid satellite-terrestrial networks, this paper proposes a handover call access strategy that have double thresholds for channel reservation and double queues. This strategy gives a higher priority to handover calls when the research on call access strategy is conducted. At the same time, the priorities are further divided according to the types of businesses.The simulation results show that the strategy can significantly reduce the failure rate of handover calls without significantly increasing blocking rate of new calls, and further improve the overall performance of the system.

Keywords： Communication Network Technology handover call hybrid satellite-terrestrial networks handover strategy call access strategy