| 多载波CDMA在Rician衰落信道的性能研究 |
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| 引用本文： | 王灿,李乐民.多载波CDMA在Rician衰落信道的性能研究[J].电子科技大学学报(社会科学版),1998(2). |
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| 作者姓名： | 王灿 李乐民 |
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| 作者单位： | 电子科技大学抗干扰通信技术国防科技重点实验室 |
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| 摘 要： | 在一种同步ＯＦＤＭＣＤＭＡ的系统模型基础上，对频率非选择性Ｒｉｃｉａｎ衰落信道的误码率性能进行了研究，分析和数值结果说明由于多径的存在系统误码率性能迅速下降，而且当直射成分很小时，信道为Ｒａｙｌｅｉｇｈ信道，系统性能变为最差。
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| 关 键 词： | 码分多址 正交频分多址 正交频分复用直接序列扩频码分多址 Rician衰落信道 |
Performance Analysis of Multi carrier CDMA in a Non Selective Rician Fading Channel |
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| Wang Can,Li Lemin.Performance Analysis of Multi carrier CDMA in a Non Selective Rician Fading Channel[J].Journal of University of Electronic Science and Technology of China(Social Sciences Edition),1998(2). |
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| Authors: | Wang Can Li Lemin |
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| Abstract: | Orthogonal frequency division multiplexing (OFDM) is a general technique for data paralled transmission on multiple carriers.One principal advantage of OFDM is its utility for transmission at nearly optimum performance in unequalized channels and in multipath channesl.OFDM CDMA is a new concept that applies the orthogonal multicarrier technique to direct sequence CDMA systems.A synchronous OFDM CDMA model is presented in this paper,and the performance of this system in a non selective Rician fading channel is also evaluated.The numerical results show the system bit error probability degrades rapidly due to multipath component. |
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| Keywords: | code division muptiple access orthogonal frequency division multiplexing OFDM CDMA non selective Ricain fading channel |
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