| 宽带卫星Mesh网多址接入信道预测分配方案研究 |
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| 引用本文： | 李斗, 王峰, 姬冰辉, 项海格. 宽带卫星Mesh网多址接入信道预测分配方案研究[J]. 电子与信息学报, 2008, 30(4): 763-767. doi: 10.3724/SP.J.1146.2006.01604 |
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| 作者姓名： | 李斗 王峰 姬冰辉 项海格 |
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| 作者单位： | 北京大学信息科学技术学院电子学系,北京,100871;北京大学信息科学技术学院电子学系,北京,100871;北京大学信息科学技术学院电子学系,北京,100871;北京大学信息科学技术学院电子学系,北京,100871 |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | 该文针对具有网状(Mesh)拓扑结构的宽带卫星通信网，研究了分布式控制多址接入信道分配策略。提出了一种基于自相似业务流量混沌预测的混合动态分配方案。利用OPNET软件建立了仿真系统，研究比较了信道分配周期、信道负载以及业务流自相似程度对几种方案性能的影响。仿真结果表明，对于采用地球同步轨道(GEO)卫星、低轨(LEO)和中轨(MEO)卫星星座的宽带卫星Mesh网，所提出方案在高信道负载条件下都具有明显的优势。
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| 关 键 词： | 宽带卫星Mesh网 动态分配多址接入 分布式控制 自相似业务流 混沌预测 |
| 文章编号： | 1009-5896(2008)04-0763-05 |
| 收稿时间： | 2006-10-19 |
| 修稿时间： | 2006-10-19 |
The Predictive Multi-access Channel Allocation Scheme in Broadband Satellite Mesh Network |
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| Li Dou, Wang Feng, Ji Bing-hui, Xiang Hai-ge. The Predictive Multi-access Channel Allocation Scheme in Broadband Satellite Mesh Network[J]. Journal of Electronics & Information Technology, 2008, 30(4): 763-767. doi: 10.3724/SP.J.1146.2006.01604 |
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| Authors: | Li Dou Wang Feng Ji Bing-hui Xiang Hai-ge |
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| Affiliation: | School of Electronics Engineering and Computer Science, Peking University, Beijing 100871, China |
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| Abstract: | This paper investigates the distributed allocation control of multi-access channel in broadband satellite mesh network. A novel combined Dynamic Allocation Multi-Access (DAMA) scheme is proposed, which is based on the chaotic prediction of self-similar traffic. The OPNET simulation system is built for comparing the performance of several schemes under different channel allocation cycle and channel load. The influence of traffic with different degree of self-similarity is also studied. Simulation results indicate that the novel scheme has better performance under high channel load in broadband satellite Mesh network with GEO, LEO and MEO satellite constellations. |
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| Keywords: | Broadband satellite mesh network DAMA Distributed control Self-similar traffic Chaotic prediction |
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