摘要
提出了一种通信卫星全球通信切换控制方案,与传统的单纯依靠地面信关站控制的方案相比,该方案不需要在全球范围内设置信关站,只需在内陆设置一个信关站就可以控制整个卫星群。用户的切换过程将由卫星星上处理和信关控制子系统协调完成,从而明显减少了切换时延和信令开销。在此基础上用opnet搭建了星座卫星系统仿真平台,在平台上实现了该方案。实验结果充分证实了该方案的可行性。
A handoff scheme for the constellation satellites global communication is proposed in this paper, and as compared with the normal scheme depending on the global gateways, this scheme, with no need for gateways in the whole world, demands only one gateway for control of the whole constellation satellites. The handover process of the users is controlled by through coordination of the satellites and the gateway, thus remarkably reducing the handoff delay and signals costs. Based on this a simulation platform for constellation satellites systemic is built up with opnet and the proposed scheme is implemented on this platform. The experiment results prove the feasibility of the proposed scheme.
出处
《通信技术》
2010年第8期152-154,共3页
Communications Technology
