| 多载波CDMA系统仿真与性能分析 |
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| 引用本文： | 姚燕,邵世祥.多载波CDMA系统仿真与性能分析[J].信息技术,2007(10):81-83. |
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| 作者姓名： | 姚燕 邵世祥 |
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| 作者单位： | 南京邮电大学通信与信息工程学院,南京,210003 |
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| 摘 要： | 多载波CDMA是OFDM和CDMA结合的综合技术,兼有OFDM和CDMA的优点,可以在无线信道中传送高速数据流,在频谱效率、频率分集、抗多径干扰等方面都能获得较大好处。首先介绍了OFDM的基本原理,给出MC-CDMA的系统模型,然后通过仿真,比较了OFDM系统和MC-CDMA系统的误码性能。结果表明,MC-CDMA系统性能优于OFDM系统,说明了OFDM和CDMA技术结合的必要性。
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| 关 键 词： | 多载波CDMA 系统性能 MATLAB仿真 |
| 文章编号： | 1009-2552(2007)10-0081-03 |
| 修稿时间： | 2007年3月23日 |
Simulation and performance analysis of multicarrier CDMA system |
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| YAO Yan,SHAO Shi-xiang.Simulation and performance analysis of multicarrier CDMA system[J].Information Technology,2007(10):81-83. |
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| Authors: | YAO Yan SHAO Shi-xiang |
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| Abstract: | Multicarrier CDMA is the combination of OFDM and CDMA techniques,which has both merits of OFDM and CDMA.It has high rate transmission capability in wireless channels,high frequency spectrum efficiency,good performance of frequency diversity and robustness to multipath delay.The basic principle of OFDM is introduced at first,the system model of MC-CDMA is also described.Then,the BER performances of MC-CDMA and OFDM systems are simulated and compared.The simulation results show that the performance of MC-CDMA is better than OFDM,and it indicated that it is necessary to combine OFDM with CDMA. |
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| Keywords: | OFDM |
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