| 宽带卫星通信中的ACM技术 |
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| 引用本文： | 吴 涛,张 健,刘爱军.宽带卫星通信中的ACM技术[J].电讯技术,2010,50(12). |
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| 作者姓名： | 吴 涛 张 健 刘爱军 |
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| 作者单位： | 1. 解放军理工大学,通信工程学院,江苏,南京,210007
2. 中国电子设备系统工程公司研究所,北京,100141 |
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| 基金项目： | 国家自然科学基金资助项目（60832008,60832006）；国家重点
基础研究发展计划（973计划）项目（2009CB320400）；国家科技重大专项（2009ZX03007-0
04） |
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| 摘 要： | 采用自适应编码调制技术(ACM)的卫星数字视频广播新标准(DVB-S2)应用到宽带卫
星通信网中，将极大提升系统吞吐量，提供更丰富的交互式业务。从实际应用的角度，分析
了ACM的控制机制并提出其编码调制方案的简化方法。仿真结果表明，在几乎不影响系统性
能的前提下，该方案可以大幅降低ACM机制的复杂度。
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| 关 键 词： | 宽带卫星通信 自适应编码调制 DVB-S2 频谱效率 |
ACM Technology for Broadband Satellite Communication |
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| WU Tao,ZHANG Jian and LIU Ai-jun.ACM Technology for Broadband Satellite Communication[J].Telecommunication Engineering,2010,50(12). |
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| Authors: | WU Tao ZHANG Jian and LIU Ai-jun |
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| Affiliation: | Institute of Communication Engineering,PLA University of Science and Techn
ology,Nanjing 210007,China;Institute of China Electronic Device System Engineering Corporation,Beijing
100141,China;Institute of Communication Engineering,PLA University of Science and Techn
ology,Nanjing 210007,China |
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| Abstract: | Applying the new DVB-S2 standard which exploits adaptive coding and modulation
(ACM) technique in broadband satellite communication networks will grea
tly improve the system throughput and provide more interactive services. In this
paper
, the ACM control mechanism is analysed and its coding and modulation
scheme is simplified from the practical point of view. Simulation results show t
hat the comple
xity of ACM control mechanism will decline significantly almost without decreasi
ng system throughput. |
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| Keywords: | broadband satellite communication adaptive coding and modulation(ACM) DVB-S2 spectral efficiency |
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