[Iwendi, Celestine] Cent South Univ Forestry & Technol, Dept Elect, Bangor Coll, Changsha 410004, Hunan, Peoples R China.
[Ponnan, Suresh] Vel Tech Rangarajan Dr Sagunthala R&D Inst Sci &, Dept ECE, Avadi 600062, India.
[Munirathinam, Revathi] Sci Soc, Engn Div, Tiruvannamalai 606805, India.
[Srinivasan, Kathiravan] Vellore Inst Technol, Sch Informat Technol & Engn, Vellore 632014, Tamil Nadu, India.
[Chang, Chuan-Yu] Natl Yunlin Univ Sci & Technol, Dept Comp Sci & Informat Engn, Touliu 64002, Yunlin, Taiwan.