Homing in On Wireless Location
By Norman Krasner
The Federal Communications Commission has decreed that by October 1, 2001, wireless carriers must provide the location of wireless 911 callers to emergency dispatchers. This article discusses an
enhanced-GPS solution that can meet that requirement.
WAN Access Switches: Issues and Strategies
By Michael J. Miller
Digital subscriber line access multiplexers and other WAN access switches take lower-performance traffic from the user or campus environment and link it to the high-speed carrier network backbone. Here’s a look at the issues faced by designers of such equipment, and strategies for meeting the challenges.
The G.DMT and G.Lite Recommendations, Part 2
By Jacques Issa and Roy Bieda
Part 2 of this discussion of ADSL standards focuses on the physical-layer issues involved in sending digital information over a copper medium. It discusses the modulation and coding techniques used to combat the attenuation, noise, and crosstalk present in copper subscriber loops.
CPLD/FPGA Design Tools Buyer's Guide
By Janine Sullivan
Designers of communications equipment are employing programmable logic devices in a greater number of production designs. Growth in device size brings the promise of increased circuit possiblities, but also the need for design tools that can manage all of those new gates. We’ve put together a resource guide to vendors of CPLD and FPGA design tools and the products they offer.
Columns
Building Blocks
The Magic Decoder
Ring
Standards & Protocols
SONET Protection Switching
Programming & Design
Responsible Engineering
Departments
Uplink
Cross Training
Technical News
Leap architecture
Tech View
Ten Myths
About Socks
New Products
The latest ICs and design tools.
CSD 2019
The QoS Imperative
Puzzled by a network processing design issue?
