Wireless/Networking

Richard Quinnell
Technical Editor
A resources site and community for engineers involved in designing communications or networking-related products and systems. Find design tips, new product information and discussion on wired and wireless networking (Ethernet, ZigBee, Wi-Fi etc.), telecom (3G, 4G, LTE etc.), and application areas like the smart grid, smart homes, the Internet of Things, and cloud computing.

The Moto 360: Premature obsolescence out of design necessity?

Smart watch batteries can’t be user-replaceable without impacting their water resistance, size, and weight, which causes premature obsolescence when battery life issues occur. Read More...

EDN predictions for 2006, 10 years later

We look back on predictions made in 1981 that looked 25 years into the future to 2006. For EDN's 60th, we look with the perspective of an additional ten years. Read More...

Wireless networking will cover the world

The next 60 years in wireless will be more exciting than the last 60 years, with everything from 10G to intrusion tolerant networks and photonic Li-Fi. Read More...

Advanced analytics will put big data to good use

A big data report from Technavio has identified emerging near-term trends, of which advanced analytics is the most compelling. Read More...

NI vector signal transceiver to be major weapon in the fight for 5G

Larry Desjardin dives into the new National Instruments VST, and explains why it could be called Very Slick Technology. Read More...

Where Zero IF wins: 50 percent smaller PCB footprint at 1/3 the cost, Part 2

This article will explore the many benefits of ZIF architectures and introduce new levels of performance that they bring to radio designs. Read More...

Introducing intermittent light and data (ILAD)

There's a new name for the concept of using light for data communication, and Disney is the latest company to get on board with the technology. Read More...

HomePlug AV2: Software holds back hardware

A powerline network upgrade proves that substantial hardware potential means little-to-nothing in the absence of polished associated software. Read More...

Where zero IF wins: 50 percent smaller PCB footprint at 1/3 the cost, Part 1

This article will explore the many benefits of ZIF architectures and introduce new levels of performance that they bring to radio designs. Read More...

Transmitter FFE makes the channel do the work

Transmitter FFE tricks the channel into doing its own equalizing. Read More...

Driverless trucks: ROI triggers in IoT adoption

Driverless trucks are a great candidate to kick off the wave of driverless vehicles. Read More...

A checklist for designing RF-sampling receivers

Recently introduced data converters are delivering the high dynamic range comparable to high-performance intermediate frequency (IF)-sampling data converters. Read More...

Why are 19-in. racks that size?

How did we settle on 19 in. as the standard size for an instrument rack? Read More...

Apple WWDC 2016: Banality and predictability

Apple's Worldwide Developer Conference has always had a heavy focus on nuts-and-bolts versus splashy news, but this one felt particularly mundane. Read More...

Powerline networking continues to improve

Latest-generation powerline networking technologies may not fully deliver on their marketing claims regarding usable bandwidth, but their robustness improvements are welcome nonetheless. Read More...

Optical tester adds return loss measurements

The MaxTester 945 from EXFO adds this useful measurement for telco field technicians. Read More...

The intricacies of signal integrity in high-speed communications

This article addresses the issues with high-speed signals and how to mitigate problems through proper component selection and board layout. Read More...

IoT has not yet lived up to the hype

Here’s one engineer’s take on the current market status and the future IoT holds. Read More...

Li-Fi is set to grow

The growing LED infrastructure, lower prices, energy efficiency, and wide residential and commercial installation will set the stage for Li-Fi growth. Read More...

Test cables remain phase-stable

Operating up to 26.5 GHz, TMFlex coaxial cables from P1dB are designed to maintain phase stability under continuous flexure. Read More...

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Splitting and arbiting a bidirectional serial bus

Serial buses like I2C are widespread. This Design Idea demonstrates ways of splitting each bidirectional line into two unidirectional ones – and why you might want to. Read More...

NRZ to AMI converter uses single supply

Convert serial data to AMI format with this simple Design Idea. Read More...

Monitor a differential pair for valid & fault conditions

Monitor the state of a differential communications line with this Design Idea. Read More...

Avago Tech Note: High-speed optocouplers enable industrial networks

Communicate at up to 25Mb/s over (e.g.) PROFIBUS. Read More...

LTC Design Note: Robust 10MHz reference clock input protection circuit and distributor for RF systems

Design a protected 10MHz reference input without degrading phase noise. Read More...

Postprocessing converts Spice to RF analyzer

Designers of RF and high-frequency products need a simulator that can predict noise figure at a given frequency, minimum noise figure, optimum reflection coefficient for noise, and noise resistance. Read More...

Simple circuit suits quadrature detection

A circuit generates an output voltage that you can measure to determine whether two sine waves have a quadrature relationship. Read More...

Low-cost RF synthesizer uses generic ICs

You can make an AM-band frequency synthesizer from standard components. Read More...

Achieve simple IR-data transmission from a PC’s serial port

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. Read More...

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Kit demos multimode wireless charger

EPC’s 9121 wireless power-charging demonstration system simplifies the evaluation process of using eGaN FETs and ICs for multimode charging. Read More...

Fiber-optic modules form versatile transmission system

PFO-100R/T fiber-optic receivers and transmitters from Link Electronics enable 3G/HD/SD-SDI or ASI fiber-optic transmission. Read More...

Software enables one-button network testing

Anritsu’s SEEK MX100003A GUI software allows the creation of detailed test configurations for one-button execution on Network Master testers. Read More...

Optical tester adds return loss measurements

The MaxTester 945 from EXFO adds this useful measurement for telco field technicians. Read More...

Handheld unit certifies Ethernet speed

Net Chaser from Platinum Tools tests and speed-certifies the data-carrying capabilities of Ethernet network cables up to 1 Gbps. Read More...

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Teardown: Apple iPad Air packs faster A7

Apple's iPad Air packs a somewhat faster A7 processor but few other surprises. Read More...

Dissecting the Intel 710 Enterprise SSD

The design for this drive, which uses multilevel-cell NAND flash for primary storage, emphasized endurance, reliability, and power efficiency. Read More...

Teardown: Ethernet and EMP take out TV tuner

In this teardown we look for evidence that an EMP generated by a lightning bolt coupled to Ethernet cable, acted as an antenna, and zapped relevant ICs inside a TV tuner. Read More...

Dissecting Disney's MagicBand

Disney is no stranger to technology, but one of the really cool tools they've put out fairly recently is the MyMagic+ system or MagicBand. Read More...

The Nexus One: Google hits a smartphone home run

More than a year after its unveiling, the Nexus One remains a leading-edge product, and represents a substantial leap in capability beyond the T-Mobile G1. Read More...

Wireless high-definition video: silicon consolidation that's maximal

The Wireless Gigabit Alliance's 60-GHz-based high-definition wireless-video-transport scheme may be on the way, but SiBEAM's pioneering approach and multiple product generations are already on the scene. Read More...

Sony Ericsson’s Xperia X10 mini: the teardown skinny

Does this smartphone address the market need for a simpler handset that will make and take calls, handle e-mail and Web surfing, and fit comfortably into a normal-sized pocket? Read More...

Inside a cellular femtocell

The solution to smartphone data traffic is a problem for femto-basestation designers. Read More...

Plugging hardware-based compression into a server

Prying Eyes gets an early look at a forthcoming PCIe-based hardware accelerator for the open-source GNU-zip algorithm. Read More...

Seeking the secrets of a satellite receiver

DirecTV set-top-box design focuses on modularity for the mass market. Read More...

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Wireless networking will cover the world

The next 60 years in wireless will be more exciting than the last 60 years, with everything from 10G to intrusion tolerant networks and photonic Li-Fi. Read More...

Implementing Bluetooth Smart modules in industrial IoT applications

Bluetooth Smart technology is one of the easiest and most cost-effective ways to implement IoT. Read More...

2D semiconductors take aim at optical communications

Developments in the lab offer glimpses of a technology that could change the future of high-performance optical links. Read More...

Flexible RF Front End Designs for Mid-Tier and Regional Smartphones

New flexible design techniques are shortening development times and increasing design reuse as mobile phone standards proliferate. Read More...

A look into Bluetooth v4.2 for Low Energy Products

Bluetooth LE v4.2 introduces some important specification changes. Here's a quick summary. Read More...

Can all the wireless charging standards coexist?

When it comes to wireless charging, the question for many developers is whether or not the various standards like Qi and A4WP can coexist, and how to design for that. Read More...

LTE-A Release 12 transmitter architecture: analog integration

In part 2 of a series, Damian Anzaldo explains how LTE-Advanced Release-12 shapes eNode transmitter architecture, specifically in terms of the analog integration challenge. The article includes an example using a MAX5868 RF DAC transmitter from Maxim Integrated. Read More...

Understand LTE-A Release 12 transmitter architecture: Part 1

A technical look at the market forces driving global adoption of the LTE standard and trends in 4G radio access technology. Topics include carrier aggregation (CA), spatial multiplexing, and active antenna systems (AAS). Read More...

Network lifecycle management and the Open OS

The bare-metal switch ecosystem and standards are maturing, driven by the Open Compute Project. Pica8’s Steve Garrision sees Linux-based network OS software as transforming network economics and innovation for switches, just as it has done for servers. Read More...

Marvell shrink-wraps IoT gateway product

Marvell came to the International CES to pitch a ready-to-customize home server/home networking/IoT gateway system, called “Smart Home Cloud Center.” Read More...

Implement a VXLAN-based network into an SoC

Here’s how to eliminate bottlenecks in hyperscale cloud datacenter SoCs with VXLAN-based networks over 10G Ethernet IP Read More...

5 Bluetooth devices for the body at CES

At a pre-CES Bluetooth event, wearables and fitness devices were the stars of the show, with a few neat medical applications making waves. Read More...

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The Moto 360: Premature obsolescence out of design necessity?

Smart watch batteries can’t be user-replaceable without impacting their water resistance, size, and weight, which causes premature obsolescence when battery life issues occur. Read More...

Advanced analytics will put big data to good use

A big data report from Technavio has identified emerging near-term trends, of which advanced analytics is the most compelling. Read More...

NI vector signal transceiver to be major weapon in the fight for 5G

Larry Desjardin dives into the new National Instruments VST, and explains why it could be called Very Slick Technology. Read More...

Introducing intermittent light and data (ILAD)

There's a new name for the concept of using light for data communication, and Disney is the latest company to get on board with the technology. Read More...

HomePlug AV2: Software holds back hardware

A powerline network upgrade proves that substantial hardware potential means little-to-nothing in the absence of polished associated software. Read More...

Transmitter FFE makes the channel do the work

Transmitter FFE tricks the channel into doing its own equalizing. Read More...

Driverless trucks: ROI triggers in IoT adoption

Driverless trucks are a great candidate to kick off the wave of driverless vehicles. Read More...

Why are 19-in. racks that size?

How did we settle on 19 in. as the standard size for an instrument rack? Read More...

Apple WWDC 2016: Banality and predictability

Apple's Worldwide Developer Conference has always had a heavy focus on nuts-and-bolts versus splashy news, but this one felt particularly mundane. Read More...

Powerline networking continues to improve

Latest-generation powerline networking technologies may not fully deliver on their marketing claims regarding usable bandwidth, but their robustness improvements are welcome nonetheless. Read More...

>> SEE ALL

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