QoS based provisioning vertical handover between IEEE 802.11 and 802.16

Wireless networking is becoming a popular and important way to provide global information access to users on the move. Current technologies are different in their characteristics such as bandwidths, latencies, frequencies and media access methods. Most existing wireless network technologies can be divided into two categories: those that provide a low-bandwidth service over a wide area and those that provide a high bandwidth service over a narrow area. Therefore, we propose an effective QoS based provisioning vertical handover decision between IEEE 802.11 and 802.16. Also, we investigate the proposal using QualNet network simulator.