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可见光通信中的无载波位相调制技术

吴楠 王旭东 姚凯莉 盖新东 何荣希

吴楠, 王旭东, 姚凯莉, 盖新东, 何荣希. 可见光通信中的无载波位相调制技术[J]. 电子与信息学报, 2017, 39(2): 360-366. doi: 10.11999/JEIT160343
引用本文: 吴楠, 王旭东, 姚凯莉, 盖新东, 何荣希. 可见光通信中的无载波位相调制技术[J]. 电子与信息学报, 2017, 39(2): 360-366. doi: 10.11999/JEIT160343
WU Nan, WANG Xudong, YAO Kaili, GAI Xindong, HE Rongxi. Carrier-less Position/Phase Modulation forVisible Light Communications[J]. Journal of Electronics and Information Technology, 2017, 39(2): 360-366. doi: 10.11999/JEIT160343
Citation: WU Nan, WANG Xudong, YAO Kaili, GAI Xindong, HE Rongxi. Carrier-less Position/Phase Modulation forVisible Light Communications[J]. Journal of Electronics and Information Technology, 2017, 39(2): 360-366. doi: 10.11999/JEIT160343

可见光通信中的无载波位相调制技术

doi: 10.11999/JEIT160343
基金项目: 

国家自然科学基金(61371091)

Carrier-less Position/Phase Modulation forVisible Light Communications

Funds: 

The National Natural Science Foundation of China (61371091)

  • 摘要: 为了保证可见光通信(VLC)系统能够为智能终端提供高速率、低能耗的数据传输服务。该文基于脉冲位置调制(PPM)技术,提出了一种新型的无载波位相(CPP)调制技术,即通过运用正交滤波器提高了PPM的传输速率。而针对采用CPP调制在VLC系统中功率效率显著降低的问题,提出了全新的时变偏置有效地降低了系统的功耗。最后仿真结果表明,采用时变偏置的CPP系统同采用直流偏置相比,在获得相同BER性能且带宽受限的情况下可以节省2 dB的信噪比。而同时考虑信号时隙之间的相关性,时变偏置可以进一步提升约1.5 dB的BER性能。
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出版历程
  • 收稿日期:  2016-04-11
  • 修回日期:  2016-08-29
  • 刊出日期:  2017-02-19

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