1. Department of Electronics and Communication Engineering, Kocaeli University,
zmit, Kocaeli, Turkey
2. Department of Electronics and Communication Engineering, Faculty of Electrical and Electronics Engineering, Istanbul Technical University, Istanbul, Turkey
3. Wireless Communication Centre, Faculty of Engineering, School of Electrical Engineering, Universiti Teknologi Malaysia, Johor Bahru, Malaysia
4. Communication Systems and Networks Research Laboratory, Malaysia-Japan International Institute of Technology, Universiti Teknologi Malaysia, Kuala Lumpur, Malaysia