HRD Programme for Exchange of ICT Researchers/Engineers Through Collaborative Research FINAL TECHNICAL REPORT On Implementing an Experimental Cognitive Radio System for IEEE 802.11 b/g Submitted To Asia-Pacific Telecommunity Submitted By Mr. Imran Khan Mr. Shujaat Ali Khan Dr. Nandana Rajatheva Dr. Teerawat Issariyakul (Project Coordinator) September 2008