| 移动卫星通信S－ALOHA动态稳定算法 |
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| 引用本文： | 邓珂,吴诗其,胡剑浩.移动卫星通信S－ALOHA动态稳定算法[J].电子科技大学学报(社会科学版),1995(6). |
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| 作者姓名： | 邓珂 吴诗其 胡剑浩 |
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| 作者单位： | 成都电子科技大学信息所 |
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| 基金项目： | 国家科委863高科技项目 |
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| 摘 要： | 提出了一种移动卫星通信多址访问协议Ｓ－ＡＬＯＨＡ的优化策略──改进的带有信道检测的动态稳定算法，使协议性能在大的动态范围内保持稳定且近似最优。分析了系统各终端处于不同环境以及限制信道输入率的控制策略对性能的影响。通过软件仿真，得出不同情况下信道的性能曲线，并对仿真结果进行了分析。考察了遮蔽对协议能的影响。当输入率较大时，捕获效应能弥补这种影响。
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| 关 键 词： | 移动卫星通信 吞吐率 平均延迟 分组丢失率 控制策略 信道检测 |
A Modified Dynamically Stabilized S-ALOHA Mutiple Access Scheme for Land-Mobile Satellite System |
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| Den Ke,Wu Shiqi,Hu Jianhao.A Modified Dynamically Stabilized S-ALOHA Mutiple Access Scheme for Land-Mobile Satellite System[J].Journal of University of Electronic Science and Technology of China(Social Sciences Edition),1995(6). |
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| Authors: | Den Ke Wu Shiqi Hu Jianhao |
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| Abstract: | This paper presents a multiple access scheme:modified channel-sensitive,dynamically stabilized S- ALOHA for land-mobile satellite systenis,The performance of systems is improved by usingthis multiple access scheme.The strategy is analyzed by assuming that the mobile terminals are in differentenvironments and the performance is improved by adding the input control procedure.Using simulationmethod,several curves of performance under various conditions are obtained and the results are analyzed by analytical methods.The effect of shade probability is analyzed in this paper.And this effect will be redressedby adopting eaptive effect when the input rate is high. |
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| Keywords: | moble satellite communication S-ALOHA throughput average delay packet loss probability control procedure channel state check |
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