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Modern wireless communication systems transmit voice and data without cables or wires. They use electromagnetic signals to broadcast data from sending facilities to intermediate and end-user devices.
Some examples of wireless communication systems include: Infrared (IR): A wireless mobile technology that uses infrared radiation to communicate data or information in devices or systems. IR communication has limitations because it requires line-of-sight, has a short transmission range, and is unable to penetrate walls. 5G: The newest 5th generation mobile wireless broadband technology based on the IEEE 802.11ac standard.
Other examples of wireless communication systems include: Television and radio broadcasting Satellite communication Radar Mobile telephone system (cellular communication) Global positioning system (GPS) WLAN (Wi-Fi) Bluetooth
A wireless communication system typically consists of: A transmitter A receiver A communication channel
Sometimes intermediary devices like repeaters or routers The transmitter converts information into a signal, which is then transmitted through the channel.
Some examples of wireless devices include: Cordless phones TV remote controls Radios GPS systems Phones Tablets Bluetooth mice and keyboards Wireless routers
Topics include: 2G Cellular Networks, 2.5G, 3G Wireless Networks, 3G W-CDMA (UMTS), 3G Cdma2000, WLANs, & Bluetooth / Personal Area Networks.
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