| 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). DOI: 10.3969/j.issn.1001-893x.2010.12.005 |
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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（2009ZX03007-004） |
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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). DOI: 10.3969/j.issn.1001-893x.2010.12.005 |
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| Authors: | WU Tao ZHANG Jian LIU Ai-jun |
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| Affiliation: | Institute of Communication Engineering,PLA University of Science and Technology,Nanjing 210007,China;Institute of China Electronic Device System Engineering Corporation,Beijing 100141,China;Institute of Communication Engineering,PLA University of Science and Technology,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 greatly 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 that the complexity of ACM control mechanism will decline significantly almost without decreasing system throughput. |
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| Keywords: | broadband satellite communication adaptive coding and modulation(ACM) DVB-S2 spectral efficiency |
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