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所属单位：计算机科学与技术学院/人工智能学院/软件学院

发表刊物：Beijing Hangkong Hangtian Daxue Xuebao

摘要：The traditional satellite network usually concentrates the control layer and data layer in the same network device, which leads to more complex network structure, fixed bandwidth and poor resource utilization rate. The software-defined satellite network (SDSN) architecture can effectively manage the satellite resources, improve the utilization of resources, and further provide effective technical support for the multi-beam handover mechanism. In this paper, a multi-decision index handover (MDIH) mechanism is proposed for multi-beam coverage SDSN. Firstly, we analyze the shortcomings of traditional satellite networks' handover mechanism and establish a handover framework based on SDSN. Secondly, we further introduce the concept of time threshold to ensure the accurate trigger of handover strategy based on the traditional channel reservation mechanism. In addition, the MDIH algorithm is used to determine the priority of users' handover in the handover decision process, which makes the decision granularity more fine-grained. Finally, we give an instance of the MDIH algorithm to further demonstrate the scalability of our handover mechanism. © 2018, Editorial Board of JBUAA. All right reserved.

ISSN号：1001-5965

是否译文：否

发表时间：2018-12-01

合写作者：钱红燕,Cheng, Xiang,陈兵

通讯作者：张加乐