A QoS Oriented Handover Scheme for WiMax/ WLAN Integrated Networks

The integration of WiMAX and WLAN provides better environment for 4G Network. Different important issues for the interworking of Mobile WiMAX and WLAN networks is analyzed in this paper. The handoff procedures when the station moves across the border of WLANS is evaluated. A tightly coupled interworking structure is presented in the paper where WLAN works as a radio access network of cellular system. The proposed schemes can keep stations always being best connected due to ad-hoc nature. An ad hoc network is a collection of wireless mobile nodes dynamically forming a temporary network without the use of any existing network infrastructure or centralized administration, but in this project the device which has free channel it can share to requester otherwise no is considered. The integration and VHO issues in WiMAX/WLAN overlay networks is presented in the paper and tightly coupled internetworking structure with proactive handoff method is proposed.