Problems with the use of WLAN's
{"Image DocumentName": "Problems with the use of WLAN\u2018s", "Image ImageDescription": "physical problems. interference: band spreading. echo: use of special antennas. Hidden Terminal problem: use CSMA/CA. data security. Wired Equivalent Privacy (WEP) service. further development WiFi (Wireless Fidelity), WPA (WiFi Protected Access)", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}