Introduction to Wireless Technology
Wireless communication is the transfer of information over a distance without the use of electrical wires. This transfer of the information may be very short distance or very long distance.
Wireless operation allows services, such as long range communication, they are impossible to implement on wires. It is commonly used in the telecommunication system which used some form of energy e.g. radio frequency, infrared light, laser light, visible light, acoustic energy etc. to transfer the information without the use of wires.
Applications of wireless technology
- Security System
- Television Remote Control
- Cellular Telephony ( Phone & Modem )
- WiFi
Wireless Infrastructure
In order to wireless enable the exiting application, a middle tier is added consisting of Application Server with the Wireless Option. The middle tier acts as a "smart browser". Since it is a "smart browser", developers do not need to be concerned with the type of mobile device used. The smart browser receives the requests for the wireless application from any wireless device and adapts the output for the mobile device. Adapters are provided by Application Server to link data with existing applications and the middle tier.
The front-end consists of the devices providing mobile access to the enterprise applications. A mobile user can access the application from a number of mobile channels. The channels may be through voice interaction with regular phones, through personal digital assistants (PDAs), or through messaging devices like e-mail and SMS. The mobile devices have access to the application server through a wireless network supplied by a wireless network provider.
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