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Wireless communication is the transfer of information between two or more points that are not connected by an electrical conductor. The most common wireless technologies use radio. With radio waves distances can be short, such as a few meters for television or as far as thousands or even millions of kilometers for deep-space radio communications. It encompasses various types of fixed, mobile, and portable applications, including two-way radios, personal digital assistants (PDAs), and wireless networking. Other examples of applications of radio wireless technology include GPS units, garage door openers, wireless computer mice, keyboards and headsets, headphones, radio receivers, satellite television, broadcast television and cordless telephones. Wireless communication has been developed with different standards to meet various requirements and demands. These methods can be classified into four individual categories based on range of network and different applications. They are Personal Area Network, Local Area Network, Metropolitan Area Network and Wireless Area Network. The different wireless communication standards have been developed to facilitate the movements
About the author
Prof. Leong Wai Yie promovierte in Elektrotechnik an der University of Queensland (UQ), Australien. Wai Yie ist derzeit Vorsitzende der Sektion für weibliche Ingenieure in Malaysia und Vorsitzende der Women Engineers-AFEO (WEAFEO). Sie ist auf medizinische Signalverarbeitung und Telekommunikation spezialisiert und wurde mit dem Richard-Jago-Forschungspreis ausgezeichnet.
