Earticle

초록

영어

This paper investigates a novel LED lamp arrangement to reduce SNR fluctuation in indoor visible light communication system. In VLC system, the signal sources often come from several LED lamps. The different positions of the LED lamps will influence the system quality. In our proposed scheme, the LED lamp arrangement consists of N LED lamps spreading in the ceiling. The heights of all lamps are the same of 3 meters which is the height of communication room. An optimal LED arrangement with the firework algorithm is presented for the minimum SNR factor and SNR fluctuation on the light receiver plane no matter the number of lamps. In order to compare the effect of SNR distributions, the total power of N LED lamps is identical. Our studies show that the SNR factor under such a LED arrangement is reduced from 118.5 to 4.09 with 16 LED lamps multi-input system which effectively reduces the SNR fluctuation between different users. Such arrangement guarantees all users obtain almost identical communication quality regardless of users’ locations.

목차

Abstract
 1. Introduction
 2. System Model and Optimal Theory
 3. Positions Optimization based on the Fireworks Algorithm
 4. Simulation Results
 5. Conclusion
 References

키워드

저자

• Chunxia You [ The Internet of Things Research Center, China University of Mining and Technology, Xuzhou, China / School of Physics and Electronic Engineering, Jiangsu Normal University, Xuzhou, China ]
• Shen Zhang [ The Internet of Things Research Center, China University of Mining and Technology, Xuzhou, China ]
• Ran Zhang [ The Internet of Things Research Center, China University of Mining and Technology, Xuzhou, China ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  International Journal of Grid and Distributed Computing

• 간기

  격월간

• pISSN

  2005-4262

• 수록기간

  2008~2016

• 십진분류

  KDC 505 DDC 605