A Study of applying Method of Unipolar-ZCD Spreading Code for LED-ID in Interference Environment
Jaesang Cha, Jin Young Kim, Yeongmin Jang, Jong-Tae Kim, Kyong-Gun Lee, Kyung-Hwan Moon · The Journal of the Institute of Webcasting, Internet and Telecommunication · 2010
Recently, This paper suggests that LED-ID technique applying positioning method for LED light. also, Authors in this paper has launched this investigation earnestly. However, there are various interferences such as MPI(Multi Path Interference) by reflected waves of the surface and interfere factors by their correlation properties of the ID in LED-ID wireless channel. Therefore, in this paper, we propose a novel OOK(On-Off Keying)-CDMA(Code Division Multiple Access) system using unipolar ZCD(Zero Correlation Duration) spreading code and verify the availability of the proposed system via the evaluation performance simulation.