[1] Univ Elect Sci & Technol China, Sch Informat & Commun Engn, Chengdu 610056, Peoples R China
[2] Hamad Bin Khalifa Univ, Coll Sci & Engn, Informat & Comp Technol Div, Doha, Qatar
[3] Univ Calabria, Dept Informat Modeling Elect & Syst, I-87036 Arcavacata Di Rende, Italy
[4] Kyungpook Natl Univ, Sch Comp Sci & Engn, Daegu 80, South Korea
[5] Univ Ljubljana, Fac Elect Engn, Ljubljana 1000, Slovenia
[6] Victoria Univ, Inst Sustainable Ind & Liveable Cities, Footscray, Vic 8001, Australia