Ke Yan1, Hong Zhu1, and Kevin Lü2 1School of Computer Science and Technology, Huazhong University of Science and Technology, China 2College of Business, Arts and Social Sciences, Brunel University, UK
Devangkumar Shah1 and Chandresh Vithlani2 1Electronics and Communication Department, RK Univer sity, India 2Electronics and Communication Department, Governmen t Engineering College, India