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Time-Sharing-Based Synchronization and Performance Evaluation of Color-Independent Visual-MIMO Communication
Tae-Ho Kwon1, Jai-Eun Kim2, Ki-Doo Kim3
1Department of Electronic Engineering, Kookmin University, Seongbuk-gu, Seoul 02707, Korea. kmjkth@kookmin.ac.kr.
Abstract:
In the field of communication, synchronization is always an important issue. The communication between a light-emitting diode (LED) array (LEA) and a camera is known as visual multiple-input multiple-output (MIMO), for which the data transmitter and receiver must be synchronized for seamless communication. In visual-MIMO, LEDs generally have a faster data rate than the camera. Hence, we propose an effective time-sharing-based synchronization technique with its color-independent characteristics providing the key to overcome this synchronization problem in visual-MIMO communication. We also evaluated the performance of our synchronization technique by varying the distance between the LEA and camera. A graphical analysis is also presented to compare the symbol error rate (SER) at different distances.
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