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移动WiMAX系统AMC研究 被引量:2

Research of AMC in WiMAX
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摘要 在WiMAX系统中,自适应调制编码(AMC)是取得高性能的关键技术之一,而信道估计误差是影响AMC的重要因素。OFDMA子载波的分配方案:分布式子载波排列和相邻子载波排列,对无线信道的时变特性带来的信道估计误差有着不同的效果。本文从理论上分析了无线信道的时变特性以及在时变信道下,WiMAX系统中两种子载波分配方案的不同的AMC性能,并通过仿真验证WiMAX中AMC的效果。 In WiMAX system,AMC is one of the key technologies to get good performance. While the assignment methods of sub-channels and channel estimation errors have impacted on the validation of AMC. The paper has analyzed the factors of impacting AMC and showed the performance of AMC in WiMAX.
出处 《电信科学》 北大核心 2007年第7期51-55,共5页 Telecommunications Science
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参考文献6

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同被引文献16

  • 1赵志飞,彭志威,杨波.IEEE 802.16规范中的安全机制[J].电子科技,2005,18(5):9-12. 被引量:3
  • 2王秋瑾,高振明,朱维红,李晨.多径衰落信道中滤波多音(FMT)调制性能分析[J].信息技术与信息化,2005(3):23-26. 被引量:2
  • 3郑宝玉,张继东.基于小波去噪的OFDM信道估计新方法[J].电子与信息学报,2006,28(3):415-418. 被引量:10
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  • 10许晓荣 郑宝玉 王磊.基于多相滤波网络的FMT系统建模.信号处理,2007,23(4):27-30.

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