Cisco Cisco WAP4410N Wireless-N Access Point - PoE Advanced Security 관리 매뉴얼

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WAP4410N Wireless-N Access Point with Power Over Internet Administration Guide

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A wireless network is a group of computers, each equipped with one or more 
wireless adapters. Computers in a wireless network must be configured to share 
the same radio channel to talk to each other. Several computers equipped with 
wireless cards or adapters can communicate with each other to form an ad-hoc 
network without the use of an access point.

Cisco also provides products to allow wireless adaptors to access wired network 
through a bridge such as the wireless access point, or wireless router. An 
integrated wireless and wired network is called an infrastructure network. Each 
wireless computer in an infrastructure network can talk to any computer in a wired 
or wireless network via the access point or wireless router.

An infrastructure configuration extends the accessibility of a wireless computer to 
a wired network, and may double the effective wireless transmission range for 
two wireless adapter computers. Since an access point is able to forward data 
within a network, the effective transmission range in an infrastructure network may 
be more than doubled since access point can transmit signal at higher power to 
the wireless space.

Infrastructure mode also supports roaming capabilities for mobile users. Roaming 
means that you can move your wireless computer within your network and the 
access points will pick up the wireless computer’s signal, providing that they both 
share the same wireless network (SSID) and wireless security settings.

Before you consider roaming, choose a feasible radio channel and optimum 
access point position. Proper access point positioning combined with a clear 
radio signal will greatly enhance performance.