| LEO卫星通信系统的呼叫接入性能分析 |
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| 引用本文： | 满亚勤,朱立东,吴诗其.LEO卫星通信系统的呼叫接入性能分析[J].国际商务研究,2006,46(6):36-39. |
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| 作者姓名： | 满亚勤 朱立东 吴诗其 |
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| 作者单位： | 电子科技大学通信抗干扰技术国家级重点实验室,成都610054 |
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| 摘 要： | 在均匀业务模型的基础上，根据LEO卫星通信系统自身特点，提出了一种简单有效的呼叫接入控制策略，这种策略能在非均匀业务下较好地工作，此时系统新呼叫阻塞率和切换呼叫失败率能达到更好的平衡。在分析随机接入（RANDOM）算法和预留保护信道（GC）算法的基础上，进行了计算机仿真，并给出了相应的仿真结果。
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| 关 键 词： | 低轨卫星通信系统 呼叫接入控制 波束切换 |
| 收稿时间： | 2006/1/23 0:00:00 |
| 修稿时间： | 2006/5/18 0:00:00 |
Call Admission Performance Analysis of LEO Satellite Communication Systems |
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| MAN Ya-qin`,ZHU Li-dong,WU Shi-qi.Call Admission Performance Analysis of LEO Satellite Communication Systems[J].International Business Research,2006,46(6):36-39. |
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| Authors: | MAN Ya-qin` ZHU Li-dong WU Shi-qi |
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| Institution: | National Key Laboratory of Communication, University of Electronic Science and Technology of China, Chengdu 610054 ,China |
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| Abstract: | On the basis of the uniform traffic pattern,a simple and effective call admission control(CAC) algorithm is introduced according to the characteristic of low earth orbit(LEO) communication systems,which can handle nonuniform traffic distribution over the coverage area.Meanwhile,the new call blocking probability and the handover call dropping probability of the system can reach a better balance.Based on the random access scheme and guard channel(GC) scheme,computer simulation is performed and the corresponding results are presented. |
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| Keywords: | LEO satellite communication system call admission control(CAC) spotbeam handover |
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