| 基于DMT/QAM和STBC的室内MIMO光无线通信 |
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| 引用本文： | 乔 琪,周湘贞.基于DMT/QAM和STBC的室内MIMO光无线通信[J].太赫兹科学与电子信息学报,2021,19(1):42-48. |
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| 作者姓名： | 乔 琪 周湘贞 |
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| 基金项目： | 淮安市自然科学研究计划资助项目(HAB201912)；国家自然科学基金面上资助项目(61672077)；河南省重点研发与推广专项基金资助项目(182102110277) |
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| 摘 要： | 针对室内漫射光无线通信问题,提出一种采用离散多音/正交幅度调制和空时块编码的多输入多输出(MIMO)光无线通信技术.基于离散多音/正交幅度调制技术,并通过考虑室内全光无线信道的脉冲响应和其噪声特性,建立起室内红外光无线链路的信道模型;再采用空时块编码技术,提出一种实现室内漫射光无线通信的MIMO无线通信系统,并通过分析...
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| 关 键 词： | 离散多音/正交幅度调制 光无线系统 空时块编码 多输入多输出 光功率 误码率 |
| 收稿时间： | 2020/2/25 0:00:00 |
| 修稿时间： | 2020/4/19 0:00:00 |
Indoor MIMO optical wireless communication based on DMT/QAM and STBC |
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| QIAO Qi,ZHOU Xiangzhen.Indoor MIMO optical wireless communication based on DMT/QAM and STBC[J].Journal of Terahertz Science and Electronic Information Technology,2021,19(1):42-48. |
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| Authors: | QIAO Qi ZHOU Xiangzhen |
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| Affiliation: | School of Computer and Communication, Jiangsu Vocational College of Electronics And Information, Huaian Jiangsu 223003, China; 1.School of Computer Science and Engineering, Beihang University, Beijing 100191, China; 2.Department of Information Engineering, Shengda Economics Trade & Management College of Zhengzhou, Zhengzhou Henan 451191, China |
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| Abstract: | A Multiple Input Multiple Output(MIMO) optical wireless communication technology based on Discrete Multi-Tone/Quadrature Amplitude Modulation(DMT/QAM) and Space-Time Block Coding (STBC) is proposed in order to solve the problem of indoor diffuse optical wireless communication. Firstly, the channel model of indoor infrared wireless links is established based on DMT/QAM technique by considering the impulse response and noise characteristics of indoor all-optical wireless channel. Then, based on STBC technology, an MIMO wireless communication system for indoor diffuse optical wireless communication is proposed, and the important performance indicators, namely Signal-to-Noise Ratio(SNR) and Bit Error Rate(BER), at the receiver are obtained by analysis. The experimental results show that the proposed indoor MIMO optical wireless communication technology can not only reduce the BER for the system, but also obtain a better SNR compared with other traditional schemes, thus reducing the required optical transmitting power. |
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