DeuceScan: Deuce-Based Fast Handoff Scheme in IEEE 802.11 Wireless Networks

The IEEE 802.11 standard has enabled low-cost and effective Wireless LAN (WLAN) services. It is widely believed that WLANs will become a major portion of the Fourth Generation (4G) cellular system. The seamless handoff problem in WLANs is a very important design issue to support the new astounding amazing applications in WLANs, especially for a user in a mobile vehicle. The entire delay time of a handoff is divided into probe, authentication, and reassociation delay times. Because the probe delay occupies most of the handoff delay time, efforts have focused mainly on reducing the probe delay to develop faster handoff schemes.