Transmission Performance Improvement Using Brightness Deviation for Visual-MIMO System 


Vol. 40,  No. 10, pp. 1871-1878, Oct.  2015


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  Abstract

Recently, research on the Visual-MIMO by applying the concept of MIMO to communication between the LED array and camera is in progress. Although we already introduced the method for bit decision by using reference LED array pattern, it has the disadvantage of measuring the ISI each time when there is a change in the distance. To overcome this, in this paper, we propose a bit decision and error correction method used by using the luminance deviation without using the reference array pattern. First, we execute the bit decision using experimentally determined threshold. Next, we execute the error checking on the ON-LED and make a correction only if it is found to be error. Correction is determined by using the value of brightness deviation corresponding to the range of 68.2% (1) around the maximum frequency of the histogram for each ON-LED. We verify the performance of the proposed method according to the variation of ISI with distance by using both numerical and experimental analysis.

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  Cite this article

[IEEE Style]

H. Kim, T. Kwon, Y. Park, K. Kim, "Transmission Performance Improvement Using Brightness Deviation for Visual-MIMO System," The Journal of Korean Institute of Communications and Information Sciences, vol. 40, no. 10, pp. 1871-1878, 2015. DOI: .

[ACM Style]

Hee-jin Kim, Tae-ho Kwon, Young-il Park, and Ki-doo Kim. 2015. Transmission Performance Improvement Using Brightness Deviation for Visual-MIMO System. The Journal of Korean Institute of Communications and Information Sciences, 40, 10, (2015), 1871-1878. DOI: .

[KICS Style]

Hee-jin Kim, Tae-ho Kwon, Young-il Park, Ki-doo Kim, "Transmission Performance Improvement Using Brightness Deviation for Visual-MIMO System," The Journal of Korean Institute of Communications and Information Sciences, vol. 40, no. 10, pp. 1871-1878, 10. 2015.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880