基于移动卫星分集系统的建模切换

IEEE 54th Vehicular Technology Conference. VTC Fall 2001. Proceedings (Cat. No.01CH37211) Pub Date : 2001-10-07 DOI:10.1109/VTC.2001.956570

M. Gkizeli, R. Tafazolli, B. Evans

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引用次数: 23

摘要

本文的目的是分析不同切换策略对非地球同步轨道卫星分集系统服务质量和网络效率的影响。为此，通过计算机仿真对基于移动卫星分集的系统中不同切换算法进行了定量分析。星座动力学的统计性质以及切换机制中传播信道的影响使我们能够评估网络中不同卫星的不同功率和时间滞后水平。在此基础上，针对不同的切换操作模式，提出了两种切换算法，并通过近地轨道和近地轨道卫星星座城郊环境的案例研究，与现有切换方案进行了比较。分析包括星座和仰角相关卫星信道的仿真。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Modeling handover in mobile satellite diversity based systems

The objective of this paper is to analyse the impact of different handover strategies on the service quality and network efficiency of non-GEO satellite diversity based systems. To this end, a quantitative analysis by computer simulation of different handover algorithms for mobile satellite diversity based systems is presented. The statistical but predefined nature of the constellation dynamics as well as the influence of the propagation channel in the handover mechanism enables the assessment of different levels of power and time hysteresis for different satellites within the network. Based on the above, two handover algorithms are proposed for different modes of handover operation and compared with existing handover schemes by means of case studies in suburban environments for a LEO and a MEO satellite constellation. The analysis includes the simulation of the constellations and the elevation dependent satellite channel.

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IEEE 54th Vehicular Technology Conference. VTC Fall 2001. Proceedings (Cat. No.01CH37211)

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