| 瑞利衰落信道下OFDM系统多址接入方案的性能比较 |
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| 引用本文： | 吴军力 侯晓林 尹长川 乐光新. 瑞利衰落信道下OFDM系统多址接入方案的性能比较[J]. 重庆邮电学院学报(自然科学版), 2004, 16(4): 1-4 |
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| 作者姓名： | 吴军力 侯晓林 尹长川 乐光新 |
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| 作者单位： | 北京邮电大学电信工程学院，北京邮电大学电信工程学院，北京邮电大学电信工程学院，北京邮电大学电信工程学院 北京100876，北京100876，北京100876，北京100876 |
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| 摘 要： | 调制方式和多址接入的灵活性是正交频分复用(OFDM)技术的一大优点。对OFDM系统下行链路的不同多址方式进行了比较，介绍了分别用于OFDM-FDMA和OFDM-TDMA的自适应子载波分配和自适应调制。仿真结果表明：带自适应子载波分配的OFDM-FDMA方式性能最佳。
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| 关 键 词： | OFDM 多址接入 自适应子载波分配 自适应调制 |
On performance of multiple access for OFDM transmission technique in rayleigh fading channel |
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| WU Jun-li,HOU Xiao-lin,YIN Chang-chuan,YUE Guang-xin. On performance of multiple access for OFDM transmission technique in rayleigh fading channel[J]. Journal of Chongqing University of Posts and Telecommunications(Natural Sciences Edition), 2004, 16(4): 1-4 |
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| Authors: | WU Jun-li HOU Xiao-lin YIN Chang-chuan YUE Guang-xin |
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| Abstract: | One of the advantages of OFDM is the flexibility concerning modulation and multiple access techniques. In this paper, different multiple access schemes for the downlink of OFDM system are compared. Adaptive subcarrier allocation and adaptive modulation,applied to the OFDM-FDMA and OFDM-TDMA respectively, are discussed. Simulation results indicate that OFDM-FDMA with adaptive subcarrier allocation performs the best. |
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| Keywords: | OFDM multiple access adaptive subcarrier allocation adaptive modulation |
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