1. a Wireless Communication Centre (WCC), Fakulti Kejuruteraan Elektrik, Universiti Teknologi Malaysia (UTM), Skudai-Johor 81310, Malaysia;, Email: abdulrahman.yusuf@yahoo.com
2. b Wireless Communication Centre (WCC), Fakulti Kejuruteraan Elektrik, Universiti Teknologi Malaysia (UTM), Skudai-Johor 81310, Malaysia
3. c Wireless Communication Centre (WCC), Fakulti Kejuruteraan Elektrik, Universiti Teknologi Malaysia (UTM), Skudai-Johor 81310, Malaysia
4. d Wireless Communication Centre (WCC), Fakulti Kejuruteraan Elektrik, Universiti Teknologi Malaysia (UTM), Skudai-Johor 81310, Malaysia