Mesh Networking makes audio (or video) files available anywhere, anytime. Each user device acts as a router/repeater for other devices. Hopping through other users reaches network access points not otherwise available. Hopping increases the coverage area by leveraging users as part of the network. The Radiant system is being trialed [...]
Cellular Telephony Cellular telephony (How It Works) requires two channel pairs, one for transmission and one for reception. There are 2 bands for analog cellular (800) Mhz service. The cellular industry is a government-mandated “duopoly”; there are only two 800 Mhz cellular licensees in each of the 734 metropolitan statistical areas (MSAs) and rural [...]
Intersil’s GTRAN modem card combines wireless LAN and CDMA connectivity in a PC card. Meanwhile, Zyray Wireless, Airify and others are also shooting for global integration. Nokia’s D-311 card combines GPRS and WLAN networks while Gtran has a PC Card that combines 1xRTT CDMA and 802.11b connectivity. Officers in 140 Pennslvania [...]
With World Com’s $4 Billion “accounting error” as our inspiration, let’s review some recent poster boys in the telecommunications racket:
Ken Lay: Stepped down in January after Enron tanked. Traded everything from bandwidth to employees’ investments. Benard Ebbers: Resigned in April after SEC began investigation of World Com. Borrowed $366 million [...]
Newspapers can push their deadlines to the long now with wireless photography. Pocket Phojo ($500) lets news photographers view, crop and annotate their images on a hand-held like the iPaq or Toshiba e740, then use cellular or Wi-Fi networks to send selected photos to an editor (or friends). The new Sharp SL-A300 Zaurus [...]
Computerworld reports that ABF Freight Systems Inc., Airborne Express and Consolidated Freightways Corp. have all decided that they don’t really need the third-generation (3G) high-speed mobile data hyped by the cellular industry. The companies are deploying current-generation wireless systems to a total of almost 30,000 mobile workers.
These companies [...]
When the World Cup, co-hosted by Korea and Japan, wraps up at the end of this month, live sports coverage may never be the same. The World Cup was a test bed for the formal launch of 3G services in South Korea. Wireless videophones captured soccer fans [...]
Fujitsu gave a preview of it’s Stylistic ST4000 Tablet PC (FAQ) in New York this week. It features a Pentium III- M, integrated IEEE 802.11b, a touchscreen, and Firewire. Tablet PCs should be in stores by November 1st. Fujitsu’s Tablet PC coverts from a laptop to a tablet [...]
For bridging 2.4 GHz networks, Tim Higgins reports on the new OR-500, Orinoco’s Remote Outdoor Router with an embedded 2.4 GHz radio and a range of up to 10 miles. It features 128-bit encryption, support for routing and Power Over Ethernet (PoE), 802.1x and can provide multi-point connectivity for up to 128 clients. The AP-2000 [...]
War Chalking is a movement to “tag” an area covered by wireless “hot spots”. It’s a cheap, easy way to indicate public wireless 802.11 access using chalk. “Mark-up” curbs, walls or sidewalks - wherever you find wireless access. Blackbelt Jones explains that War Chalking is a pun on [...]
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