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On Practical Issues of Adaptive Modulation in OFDM Systems

On Practical Issues of Adaptive Modulation in OFDM Systems
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摘要 The performance of Orthogonal Frequency Division Multiplexing (OFDM) systemswith Adaptive Modulation (AM) is studied in this paper. Some factors in the system includingfrequency group, time interval Channel State Information (CSI) estimation error and channel delayare analyzed. The results of simulation prove the efficiency of AM-OFDM, and indicate CSIestimation error affects the performance of AM-OFDM seriously. The performance of Orthogonal Frequency Division Multiplexing (OFDM) systemswith Adaptive Modulation (AM) is studied in this paper. Some factors in the system includingfrequency group, time interval Channel State Information (CSI) estimation error and channel delayare analyzed. The results of simulation prove the efficiency of AM-OFDM, and indicate CSIestimation error affects the performance of AM-OFDM seriously.
作者 WUJun-li YINChang-chuanI YUEGuang-xin
机构地区 CollegeofTelecommunicationEngineering
出处 《The Journal of China Universities of Posts and Telecommunications》 EI CSCD 2005年第1期36-40,共5页 中国邮电高校学报（英文版）
基金 This work is supported by National Natural Science Fundation of China (No.90104018 and 60172052) and National"863"Project of China (No.2003AA12331004).
关键词 OFDM AM rayleigh fading channel OFDM AM rayleigh fading channel
分类号 TN929.531 [电子电信—通信与信息系统]
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参考文献16

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二级参考文献16

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The Journal of China Universities of Posts and Telecommunications
2005年 第1期

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