W|
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| WAN | Wide Area Network |
| WAPECS | Wireless Access Platforms for Electronic Communications Services |
| WARC | World Administrative Radio Conference |
| WAS | Wireless Access Systems |
| WBDTS | Wide Band Data Transmission System |
| WCDMA | Wide Band CDMA |
| WGFM | Working Group Frequency Management (CEPT) |
| W-HDTV | Wide HDTV |
| WHO | World Health Organization |
| WiFi | Wireless Fidelity |
| Wiki | from Hawaiian: "quickly": facility for Internet communication |
| WiMAX | Worldwide Interoperability for Microwave Access (related with WLAN) |
| WLAN | Wireless Local Area Network |
| WLL | Wireless Local Loop |
| WMO | World Meteorological Organization |
| WP | Working Party |
| WPAN | Wireless Personal Area Network |
| WRC | World Radiocommunication Conference (ITU) |
| WSRT | Westerbork Synthesis Radio Telescope (NL) |
| WTDC | World Telecommunication Development Conference (ITU) |
| WTO | World Trade Organization |
| WTPF | World Telecommunication Policy Forum (ITU) |
| WTSC | World Telecommunication Standardization Conference (ITU) |
| WWW | World Wide Web |
