13 July 2002

WiFi Costs KILKENNY, Ireland -- Wi-Fi will burden your network. You have to let your WiFi node pony onto your network, giving it rights to use TCP/IP across your bandwidth. Watching WiFi work on Checkpoint means you'll see a lot of bytes exchanged between host and remote. The authentication protocols are computationally expensive, as well as tedious for smaller devices in which entering 128-bit WEP keys (15 hexadecimal two-digit numbers) is ridiculous.

Bluetooth and WiFi CORK, Ireland -- Motorola SPS are fiddling around with different antenna arrays embedded inside various handsets. When Bluetooth is harmonized with Wi-Fi (802.15.2 and a new Bluetooth revision), you'll see a Motorola mobile phone that could use its single radio to talk Bluetooth and Wi-Fi.

802.15 Working Group 802.15 GROUP -- The 802.15 Working Group shows the relationship of WPANs (Wireless Personal Area Networks), WLAN (wireless LANs), WWANs (Wireless Wide Area Networks), and WMANs (Wireless Metropolitan Area Networks). As the schematic shows, when distance increases, you also increase speed to allow a bigger pool of bandwidth from which to draw.

WiFi Limitations WiFi -- It's getting cheaper to get WiFi kit. But it's no easier making WiFi components talk farther than 300 feet from a base station. That's why I'm talking to Peter Bellew for a Visitor-Based Network during the Kilkenny Arts Festival.

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