This chapter considers various wireless communication systems including the following: wireless local area networks (WLANs), which enable communication between stations without cables by means of radio frequency or infrared; wireless asynchronous transfer mode (WATM), which facilitates the use of ATM technology for a broad range of wireless network access and internetworking scenarios; wireless personal area network (WPAN), which refers to using a near-field electric field to send data across various devices using the human body as a medium; and cellular communications, which allows frequency reuse by dividing regions into small cells, each cell with a stationary radio antenna.
Wireless Data Services, Page 1 of 2
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