Affiliation: | 1. Department of Electrical Engineering, Pohang University of Science and Technology, , Pohang, Gyeongbuk, 790–784 Republic of Korea;2. Creative IT Engineering, Pohang University of Science and Technology, , Pohang, Gyeongbuk, 790–784 Republic of Korea;3. NASA Ames Research Center, , Moffett Field, CA, 94035 USA;4. Division of IT Convergence Engineering, Pohang University of Science and Technology, , Pohang, Gyeongbuk, 790–784 Republic of Korea |