wlana
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introduction to wireless LAN
introduction to wireless LAN
wireless LAN standard

Configuration: Microcells and Roaming

Microcells and Roaming Wireless communication is limited by how far signals carry for given power output. WLANs use cells, called microcells, similar to the cellular telephone system to extend the range of wireless connectivity. At any point in time, a mobile PC equipped with a WLAN adapter is associated with a single access point and its microcell, or area of coverage. Individual microcells overlap to allow continuous communication within wired network. They handle low-power signals and “hand off” users as they roam through a given geographic area.

Figure 6. Handing off the WLAN Connection Between Access Points

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