본 고에서는 LED 조명을 이용한 가시광 무선통신 기술이 조명과 무선통신의 융합기술로서 충족해야 하는 요구사항들과 이를 충족시키기 위해 IEEE 802.15.7 국제 표준에서 논의하고 있는 다양한 기술들을 살펴본다. 상기의 기술들은 크게 플리커 방지 기술과 조명의 밝기 조절 관련 기술들로 구분되는데, 특히 플리커 방지는 조명으로서 갖추어야 할 필수 기능으로서 본 고에서는 가시광 무선통신에서 플리커가 발생하는 원인을 알아보고 이를 극복하기 위해 제안된 기술들의 특징들을 살펴본다. 또한, 조명으로서의 최대 밝기 제공, LED 광원의 보호 및 광원의 색 변이 방지 등의 요구사항들이 광원의 밝기 조절 기능과 어떤 연관성을 가지고 있는지를 살펴보고, 가시광 무선통신에서 광원의 밝기를 조절하기 위해 제안된 기술들의 주요 특징들을 소개한다.
KSP Keywords
IEEE 802.15.7
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