6
Ambit Microsystems Corporation
wireless transmission range for 2 T60H424 PCs. Since the Access Point is able to forward data within its BSS, the effective transmission
range in an infrastucture LAN is doubled.
Ad-Hoc
Infrastructure
Access Point
Notebook with
T60L198/T60L244
Notebook with
T60L198/T60L244
Notebook with
T60L198/T60L244
Notebook with
T60L198/T60L244
Fig 3 The effective transmission ranges
2-2
Roaming
Infrastructure mode also supports roaming capabilities for mobile users More than one BSS can be configured as an Extended Service
Set (ESS). The continuous network allows users to roam freely within an ESS. All T60H424 PCs and Access Point within one ESS must be
configured with the same ESSID and use the same radio channel.
Ess
BSS1
BSS2
乙太網路
File Server
Desktop PC
Desktop PC
Desktop PC with
T60L198/T60L244
Desktop PC with
T60L198/T60L244
Access Point
Access Point
Notebook with
T60L198/T60L244
Notebook with
T60L198/T60L244
Fig.4 Roaming in an Extended Service Set (ESS)
Before enabling an ESS with roaming capability, choosing a feasible radio channel and optimum Access Point position is recommended.
Proper Access Point positioning combined with a clear radio signal will greatly enhance performance.
