| 基于自适应OFDM的可见光通信系统分析 |
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| 引用本文： | 张华,宋正勋,刘冬彦,周晓兵,尹力会.基于自适应OFDM的可见光通信系统分析[J].长春理工大学学报,2010,33(1):70-73. |
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| 作者姓名： | 张华 宋正勋 刘冬彦 周晓兵 尹力会 |
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| 作者单位： | 长春理工大学电子信息工程学院,长春,130022;长春职业技术学院,长春,130022;长春理工大学电子信息工程学院,长春,130022;吉林交通职业技术学院,长春,130022;长春职业技术学院,长春,130022 |
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| 摘 要： | 为了提高可见光通信系统的整体性能和实现带宽资源的有效利用,针对可见光无线信道的频域选择性特性,提出在可见光通信系统中采用自适应OFDM调制方式的方案,即根据信道状况的优劣自适应地选择恰当的调制、解调方式。仿真结果表明,在相同的信噪比(SNR)下,该方案所采用的自适应OFDM系统比传统的OFDM系统有更低的误比特率(BER),同时所提出的最佳载波选择准则可以提高系统的整个吞吐量。
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| 关 键 词： | 可见光通信 自适应OFDM 误码率 信噪比 吞吐量 |
Research on Indoor Visible-Light Communication System Based on Adaptive OFDM |
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| ZHANG Hua,SONG Zhengxun,LIU Dongyan,ZHOU Xiaobing,YIN Lihui.Research on Indoor Visible-Light Communication System Based on Adaptive OFDM[J].Journal of Changchun University of Science and Technology,2010,33(1):70-73. |
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| Authors: | ZHANG Hua SONG Zhengxun LIU Dongyan ZHOU Xiaobing YIN Lihui |
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| Affiliation: | 1. School of Electronic and Information Engineering;Changchun University of Science and Technology Changchun 130022;2.Changchun Vocational Institute of Technology;Changchun 130022;3.Jilin Communications Polytechnic;Changchun 130022 |
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| Abstract: | For improving the whole performance of VLC system and utilizing the frequency band fully,aiming at the channel characteristics of frequency domain selectivity,this paper gave an adaptive orthogonal frequency division multiplexing (OFDM) proposal that is choosing the appropriate modulation mode according to the quality of each sub-channel. From the simulation results,we can find that BER of the adaptive OFDM system is lower than the conventional ones under the same SNR,and in the same time,the criterion whic... |
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| Keywords: | visible light communication adaptive OFDM BER SNR throughput |
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