低轨卫星系统中的一种带优先级的信道预留策略
doi: 10.3724/SP.J.1146.2006.02085
A Channel Reservation Algorithm with Priorities in LEO Satellite Systems
-
摘要: 在卫星通信系统中，可能需要同时支持地面普通终端及一些快速移动特殊终端的通信，因此需要综合考虑不同类型终端的通信服务质量要求。该文从切换的角度考虑，针对两种不同用户终端及非均匀的业务分布，提出一种带优先级的信道预留策略。通过理论分析和仿真结果表明，该策略提高了特殊用户的切换性能，对低轨卫星通信系统的研究有一定的参考价值。Abstract: In satellite communication systems, some special users which are usually fast-moving terminals may need to be supported as well as the common users sometimes. Since the two types of users exist, the communication performances for both of them should be considered. In this paper, a novel channel reservation algorithm is proposed for this case. The theoretic analysis and simulation results show that the handover performances of the special users are improved by this algorithm.
-
李庆，朱立东，吴诗其. 低轨卫星通信系统中快速终端的切换技术，通信学报，2006，27(5): 120-125.Li Qing, Zhu Li-dong, and Wu Shi-qi. Handover technique offast-moving terminal in LEO satellite communicationsystems. Journal on Communications, 2006, 27(5): 120-125.[2]刘严静, 刘刚, 吴诗其. 低轨卫星移动系统的点波束确定算法.中国空间科学技术, 2006, 26(3): 59-66.Liu Yan-jing, Liu Gang, and Wu Shi-qi. Spot beamjudgement algorithm of low earth orbit satellite mobilesystem. Chinese Space Science and Technology, 2006, 26(3):59-66.[3]Del Re E, Fantacci R, and Giambene G. Different queuingpolicies for handover requests in low Earth orbit mobilesatellite systems[J].IEEE Trans. on Vehicular Technology.1999,48(2):448-458[4]Hong D and Rappaport S S. Traffic model and performanceanalysis for cellular mobile radio telephone systems withprioritized and nonprioritized handoff procedures[J].IEEETrans. on Vehicular Technology.1986, 35(3):77-92[5]Beylot A L and Boumerdassi S. Adaptive channel reservationschemes in multitraffic LEO satellite systems. IEEE GlobalTelecommunications Conference, San Antonio, TX, USA,2001, Vol. 4: 2740-2743.[6]Cho S. Adaptive dynamic channel allocation scheme forspotbeam handover in LEO satellite networks. IEEEVehicular Technology Conference, Boston, MA, USA, 2000,Vol.4: 1925-1929. -
计量
- 文章访问数: 3259
- HTML全文浏览量: 118
- PDF下载量: 741
- 被引次数: 0
下载:
