Image Processing Reference
In-Depth Information
25
Wireless Local and Wireless
Personal Area Network
Communication in Industrial
Environments
. Introduction .........................................
 -
. WLAN, WPAN, WSN, Cellular and
AdHocNetworks ....................................
 -
. BluetoothTechnology................................
 -
Technical Background Performance
. IEEE............................................
 -
Technical Background Performance
. IEEE../ZigBee ................................  -
Technical Background Performance
. CoexistenceofWPANandWLAN...................  -
Separation in the Frequency Domain Separation in the
Time Domain Separation in Space
. SummaryandConclusions...........................  -
References .................................................  -
Kirsten Matheus
NXP Semiconductors
25.1 Introduction
The convenience of true mobility offered by wireless connectivity is the main driver behind its
widespread acceptance. While cellular systems like GSM or UMTS require huge upfront investments
and extensive infrastructure, the commercial and industrial deployment is more appealing when sys-
tems function on a smaller scale and do not require costly frequency licensing or infrastructure;
systems like Bluetooth, IEEE . wireless local area networks (WLANs), or IEEE ../ZigBee.
These systems, each having successfully been developed for a specific purpose, are now being
investigated for use cases in industrial environments, where wireless connectivity has manifold
advantages.
First of all, less cabling is needed. his normally results in a significant reduction of material costs
and installation time. Wireless technologies might even enable specific setups otherwise impossible
to realize. Maintenance costs can also be reduced, when replacements no longer need to be done
where chemicals, vibrations, or moving parts would gradually damage cables . Moreover changes
in the layout of the factory floor and reconfiguration are easier to realize [WMW]. The actual
 
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