Design and experiments of an adaptive OFDM system for visible light communication

doi:10.7523/j.issn.2095-6134.2018.01.019

›› 2018, Vol. 35 ›› Issue (1): 137-143.DOI: 10.7523/j.issn.2095-6134.2018.01.019

Design and experiments of an adaptive OFDM system for visible light communication

CAI Shaoyang, CHEN Li, WANG Weidong

Key Laboratory of Wireless-Optical Communications of Chinese Academy of Sciences, University of Science and Technology of China, Hefei 230027, China

Received:2016-12-19 Revised:2017-03-29 Online:2018-01-15

Abstract

Abstract: As an emerging wireless communication technology, visible light communication (VLC) is one of the effective solutions for the shortage of wireless spectrum resource. In this work, a low-complexity design scheme of orthogonal frequency division multiplexing (OFDM) system is proposed based on the mask invariable characteristics of the received signal-to-noise rate of VLC in the electrical domain. The scheme is verified by the experiments. The experimental results show that, compared with the adaptive equal bits transmission scheme, the proposed adaptive OFDM system makes full use of the bandwidth resources of wireless optical channel, and it shows improvements in transmission rate and BER performance.

Key words: visible light communication, visible light communication(VLC), optical orthogonal frequency division multiplexing(OFDM), adaptive technology, adaptive OFDM

CLC Number:

TN929.1

CAI Shaoyang, CHEN Li, WANG Weidong. Design and experiments of an adaptive OFDM system for visible light communication[J]. , 2018, 35(1): 137-143.

References

[1] Karunatilaka D, Zafar F, Kalavally V, et al. LED based indoor visible light communications:State of the art[J]. IEEE Communications Surveys & Tutorials, 2015, 17(3):1649-1678.
[2] 迟楠. LED可见光通信技术[M]. 北京:清华大学出版社, 2013.
[3] Armstrong J, Schmidt B J C. Comparison of asymmetrically clipped optical OFDM and DC-biased optical OFDM in AWGN[J]. IEEE Communications Letters, 2008, 12(5):343-345.
[4] Dissanayake S D, Armstrong J. Comparison of aco-ofdm, dco-ofdm and ado-ofdm in im/dd systems[J]. Journal of Iightwave Technology, 2013, 31(7):1063-1072.
[5] Tsonev D, Sinanovic S, Haas H. Novel unipolar orthogonal frequency division multiplexing (U-OFDM) for optical wireless[C]//Vehicular Technology Conference (VTC Spring). IEEE, 2012:1-5.
[6] Liu Y F, Yeh C H, Chow C W, et al. Adaptive control of OFDM data rate for LED visible light communications in different free space transmission distances and offsets[C]//Communications and Photonics Conference (ACP). IEEE, 2012:1-3.
[7] González O, Perez-Jimenez R, Rodriguez S, et al. OFDM over indoor wireless optical channel[J]. IEE Proceedings-Optoelectronics, 2005, 152(4):199-204.
[8] González O, Pérez-Jiménez R, Rodriguez S, et al. Adaptive OFDM system for communications over the indoor wireless optical channel[J]. IEE Proceedings-Optoelectronics, 2006, 153(4):139-144.
[9] Lee K, Park H, Barry J R. Indoor channel characteristics for visible light communications[J]. IEEE Communications Letters, 2011, 15(2):217-219.
[10] Gu W, Aminikashani M, Deng P, et al. Impact of multipath reflections on the performance of indoor visible light positioning systems[J]. Journal of Lightwave Technology, 2016, 34(10):2578-2587.
[11] 吴兰春. OFDM数字基带AMC自适应控制算法的研究和硬件实现[D]. 武汉:华中科技大学, 2009.
[12] 赵慧玲. APD微弱光电信号探测技术研究[D]. 长春:长春理工大学, 2010.

Design and experiments of an adaptive OFDM system for visible light communication

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