1. Photonics Engineering Department and the Wireless and Photonics Network (WiPNET) Research Center of Excellence, Faculty of Engineering, Universiti Putra Malaysia (UPM), Serdang, Selangor, Malaysia
2. Computer and Communication Systems Engineering Department, Faculty of Engineering, Universiti Putra Malaysia (UPM), Serdang, Selangor, Malaysia
3. Computer and Communication Systems Engineering Department and the Wireless and Photonics Research Center of Excellence (WiPNET), Faculty of Engineering, Universiti Putra Malaysia (UPM), Serdang, Selangor, Malaysia
4. Electrical Engineering Department, College of Engineering, King Saud University (KSU), Riyadh, Saudi Arabia