1. R&D Team, Networks, Samsung Electronics,Suwon,S. Korea
2. Sungkyunkwan University,Dept. of Electrical and Computer Engineering,Suwon,South Korea
3. Sungkyunkwan University,Dept. of AI Systems Engineering,Suwon,South Korea
4. Sungkyunkwan University,Dept. of Computer Science and Engineering,Suwon,South Korea