The IEEE 802.11 standard has enabled low-cost and effective wireless local area network
(WLAN) services. It is widely believed that WLANs will become a major portion of the fourth-
generation cellular system. The seamless handoff problem in WLANs is a very important
design issue to support the new astounding and amazing applications in WLANs,
particularly 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 …

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 wireless networks. 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. This paper presents a new fast handoff scheme …