[1] Kookmin Univ, Dept Comp Sci, Seoul, South Korea
[2] Elect & Telecommun Res Inst, Telecommun & Media Res Lab, Daejeon, South Korea
[3] Univ Missouri, Dept Comp Sci & Elect Engn, Kansas City, MO 64110 USA
[4] CEA Leti, French Atom Energy Commiss Elect & Informat Techn, MINATEC Campus, Grenoble, France
[5] Yonsei Univ, Sch Elect & Elect Engn, Seoul, South Korea