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Stories by Matt Hamblen

Ultrawideband: A better Bluetooth

Ultrawideband wireless technology has been called "Bluetooth on steroids." Like Bluetooth, its personal-area network (PAN) cousin, UWB is designed to replace cables with short-range, wireless connections, but it offers the much higher bandwidth needed to support multimedia data streams at very low power levels. And because UWB can communicate both relative distance and position, it can be used for tracking equipment, containers or other objects.
In a recent technology demonstration, Freescale Semiconductor Inc. in Tempe, Ariz., showed a UWB device that transmitted at a data rate of 110Mbit/sec. at a range of up to 10 meters. That bandwidth -- 100 times faster than Bluetooth and twice the capacity of the fastest Wi-Fi networks -- is enough to pump three concurrent video streams over a single UWB connection. Vendors are promising UWB products that support speeds up to 1Gbit/sec.

Written by Matt Hamblen31 July 04 22:00

Kumar's out, but users see a stable CA left behind

Sanjay Kumar's departure from Computer Associates International Inc. Friday disheartened some users who liked his focus on improved customer service, but it pleased other customers worried about his oversight of the company at a time accounting irregularities were taking place.

Written by Matt Hamblen04 June 04 22:12

Cisco launches network QoS tools

Cisco Systems Inc. has introduced automated quality-of-service functions for nine of its switches and routers, a move aimed at helping users create converged networks that include voice-over-IP (VOIP) capabilities.
Currently, setting up IP networks with VOIP support often requires IT managers to do complex manual tuning of each router in a LAN or a WAN, said Zeus Kerravala, an analyst at The Yankee Group in Boston. The settings are designed to look at IP packets and zip them on their way if they are deemed high priorities, such as voice or video traffic. Because the process is so complex, only 9 percent of companies even turn on quality-of-service functions, Kerravala said. The result, he added, is that some functions, such as VOIP, might not be adopted as widely as they could be.

Written by Matt Hamblen30 March 03 22:00