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LTE系统下行链路的一种AMC方案 被引量：6

Adaptive modulation and coding scheme for long-term evolution downlink
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摘要 高速数据和多媒体业务对新一代移动通信系统提出了更高的要求,自适应调制与编码(AMC)因其在提高频谱效率方面的显著特点,成为3GPP长期演进(LTE)系统的一项关键技术。本文基于LTE系统物理层下行链路模型,分析了在LTE系统中AMC与混合自动重传(HARQ)技术的主要特点,提出一种针对LTE下行链路的AMC方案,并对该方案在模型下的性能进行了讨论。仿真结果表明,采用AMC技术对提升LTE系统容量作用显著。 3GPP has started a Long-Term Evolution（LTE） for nowadays 3G to satisfy the users＇ explosive-growing expectations. Adaptive Modulation and Coding（AMC） then becomes one of the key technologies offering a valid method to raise overall system capacity. Based on the physical layer model of LTE downlink, the features of AMC and HARQ（Hybrid Automatic Repeat reQuest） in LTE were analyzed. An AMC scheme for LTE downlink was put forward and simulated. The simulation results indicated that AMC had remarkable effects on improving LTE system capacity.
作者 蒋佳俊 胡波
机构地区 复旦大学电子工程系
出处 《信息与电子工程》 2009年第5期377-381,394,共6页 information and electronic engineering
基金 国家自然科学基金资助项目(60672047)
关键词 长期演进技术(LTE) 自适应调制与编码 混合自动重传 Long-Term Evolution（LTE） Adaptive Modulation and Coding（AMC） Hybrid Automatic Repeat reQuest（HARQ）
分类号 TN929.5 [电子电信—通信与信息系统]
  • 相关文献

参考文献15

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共引文献3

同被引文献30

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引证文献6

二级引证文献3

信息与电子工程
2009年 第5期

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