• Infrared and Laser Engineering
  • Vol. 47, Issue 2, 222001 (2018)
Guo Xinyue*, Li Shuangshuang, Guo Yang, and Xiao Jiangnan
Author Affiliations
  • [in Chinese]
  • show less
    DOI: 10.3788/irla201847.0222001 Cite this Article
    Guo Xinyue, Li Shuangshuang, Guo Yang, Xiao Jiangnan. Adaptive STBC MIMO-OFDM system design for indoor visible light communications[J]. Infrared and Laser Engineering, 2018, 47(2): 222001 Copy Citation Text show less

    Abstract

    An adaptive multiple-input multiple-output orthogonal frequency division multiplexing(MIMO-OFDM) visible light communication(VLC) system based on space-time block coding (STBC) modulation was proposed in the paper, which can overcome the MIMO channel correlation and achieve reliable communications. Meanwhile, power-and-bit allocation(PBA) was combined with OFDM in order to adapt to the channel and improve the spectral efficiency. Then a 2×2 MIMO-OFDM VLC transmission over a distance of 80 cm was demonstrated, where the measured bit error rates were all below 7% of the pre-forward-error-correction threshold of 3.8×10-3. Experimental results show that the STBC MIMO-OFDM system is robust to MIMO channel correlation, where the data rates can be greatly improved by applying the PBA.
    Guo Xinyue, Li Shuangshuang, Guo Yang, Xiao Jiangnan. Adaptive STBC MIMO-OFDM system design for indoor visible light communications[J]. Infrared and Laser Engineering, 2018, 47(2): 222001
    Download Citation