Design Center

Communications/Network Design

News and technical information for design engineers working on products that span the range from home networks to enterprise networks to core telecom/datacomm networks. Covers all pertinent standards and design challenges ranging from cost in home networks to reliability in core networks.
Top Story
Top Story

USB 3.0: A simple idea full of challenges 6/11/2009

Combining 5 Gbps with the convenience of USB sounds like a sure win, but many issues are hiding behind the premise.

News

Agilent, ETS-Lindgren address A-GPS test 6/11/2009

Agilent Technologies Inc has introduced GS-9000 A-GPS (assisted-global-positioning-system) test systems employing the company's 8960 wireless-communications-test set's new A-GPS-assistance-data-messaging-test capabilities.

EDN names winners of 19th Annual Innovation Awards 3/31/2009

EDN has bestowed its 19th Annual Innovation Awards, honoring a diverse group of electronics engineers and the ground-breaking products they have produced. The Altera Stratix IV 40-nm FPGA design team is named Innovator of the Year. Read on for a complete list of the winners.

Researchers advance quantum-memory-retention time 2/5/2009

Researchers at the Georgia Institute of Technology have announced a significant advance in the retention time of multiatom quantum-memory devices—from a previous maximum of 32 msec to 7 msec. The significance of the advance is that, with retention time of milliseconds, a bit in quantum memory now lasts longer than the time it would take a photon to travel through 100 km of optical fiber f...

IBM claims graphene field-effect transistors at GHz frequencies 12/19/2008

With a top-gate design and a gate length 150 nm, IBM achieved a cut-off frequency of 26 GHz for its graphene transistors.

Tzero promises demo of 1080p60 wireless HDMI using UWB 12/3/2008

UWB (ultrawideband) silicon provider Tzero Technologies today announced that it plans to demonstrate at a developer's conference in Japan this week a "commercially viable" UWB implementation capable of delivering a 1080-line, 60-frame/sec HDTV signal.
In-Depth

Getting to 4G through design and test 4/9/2009

4G telecommunication technology carries explicit requirements for minimum network speed. Designers must find a way to reliably and cost-effectively reach those targets.

Noisy radio link puts brakes on racing-crew communication 1/22/2009

Tales From The Cube: Interference is hampering driver-to-pit-crew communication via a 460-MHz FM system. Even disconnecting the driver's mic doesn't help. So where is the noise coming from?

Hardware and software approaches implement multiple radios 12/15/2008

Miniaturization and emerging flexible software architectures will enable compact, low-power wireless devices to support communications standards ranging from Bluetooth to WiMax.

The Hot 100 Electronic Products of 2008 12/15/2008

EDN's editors offer up their annual list of the year's 100 most significant ICs, components, buses, boards, EDA tools, power devices, test instruments, and more.

Designing protective circuitry for DSL loops: Beware of pitfalls 12/5/2008

DSL equipment requires protection from a variety of overvoltage conditions, but the need to avoid unduly degrading circuit operation complicates circuit design.
Experts

Museum contends with multimedia rights 3/19/2009

Wherever technology goes, legal issues regarding copyright ownership seem to follow.

White spaces and black hearts 10/16/2008

Those pushing white-space proposals, including Google's Larry Page, need some lessons in real-world RF interference, and the industry should put white-spaces plans on hold until we see how badly the digital-TV rollout hurts broadcast television.

Voices: GreenPeak Technologies’ Cees Links: wireless-networking visionary 2/21/2008

Cees (pronounced case) Links is an engineer and the chief executive officer at GreenPeak Technologies, an international supplier of low-power wireless-system modules compatible with IEEE 802.15.4 and ZigBee. Based in Utrecht, the Netherlands, Links has been a pioneer in the wireless industry and was involved in the establishment of the IEEE 802.

Open-cellular-network boasts lack substance 1/10/2008

There are dozens if not hundreds of products that might be more compelling if they integrated a cellular radio.

Holiday wishes target technological harmony 12/5/2007

From an accord among the high-definition DVD camps to signs of progress for UWB and Wireless USB, my list highlights technological developments that I believe would be good for the high-tech segment.
DesignIdeas

Achieve simple IR-data transmission from a PC’s serial port 10/11/2007

By transmitting appropriate hex values from a PC's serial port to a pair of IR LEDs, a remote-control IR receiver can enable 38.4-kHz data transmission.
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Product fEEd

Lantronix MatchPort: Wireless embedded-networking module has remote capabilities

Xecom XE0402LCC: Telephone-interface module is half the size of its predecessor

Silicon Laboratories Si472x: FM-radio transmitter combines a receiver and a transmitter into one chip

Toshiba America Electronic Components TC358730XBG: MIPI display buffer/controller simplifies mobile-phone design

Saelig iEthernet W5100: Ethernet-controller IC features a hard-wired TCP/IP core


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