Wireless communication

Bluetooth (146)
Cellular network (28)
Long-term evolution (29)
Radio-frequency identification (71)
Wireless application protocol (7)
Wireless communication (574)

Synopsis: Domenii: Ict: Ict generale: Communication systems: Wireless communication: Wireless communication:

The satellites it put into the space provide everything from high-resolution imagery to monitor the country's shrinking farmland, to cheaper wireless and internet coverage.

And in the US, Wireless Emergency Alerts from the Federal Emergency Management Agency now warn people of severe weather and other hazards

The cafes, kiosks and benches teem with young entrepreneurs who seem to survive on a diet of caffeine and wi-fi. Of Israel's 5, 000 tech companies,

and predictable technology,#says Professor Roch Guerin, Chair of Computer science and Engineering at Washington University, St louis."Bluetooth targets lower transmission ranges and data rates than wi-fi,

and cafes offering wi-fi, are now seeing the effect of this. In Prenzlauer Berg, Factory,

#Bloomberg the Company Daniela Perdomo credits the absence of basic communication services after superstorm Sandy for inspiring Gotenna Inc. a do-it-yourself wireless network that can carry text

and the service operates independently from cellular or Wi-fi networks. The signal range is anywhere from 50 miles to several blocks depending on interference.``

and entertainment. he vehicles with free wi-fi onboard arrive at stops frequently#from every 10-18 minutes depending on the

And that is precisely what a team of EU-funded researchers are achieving in the SWAP('Symbiotic Wireless Autonomous Powered system')project.

and expertise to develop the next generation of innovative, autonomously powered wireless sensors. n recent years,

The new research harnesses technological advances in wireless networking, environmental sensors and soil water movement models.

The possibilities include wireless communication between fire fighters sending images when visibility is extremely low and identifying toxic fumes in the air.

Arbabian's team recently presented a working prototype of this wireless medical implant system at the IEEE Custom Integrated circuits Conference in San jose California.

"Tiny wireless nodes such as these have the potential to become a key tool for addressing neurological disorders"says Florian Solzbacher professor of electrical and computer engineering at University of Utah and director of its Center for Engineering Innovation.

including a smartphone (iphone 4s) capable of practical wireless communication with two pumps delivering doses of insulin and glucagon.

The team tested the wireless charging system in a pig and used it to power a tiny pacemaker in a rabbit.

and efficacy requirements for using this wireless charging system in commercial medical devices. But it has the potential to eliminate bulky batteries

Either way, far-field electromagnetic waves have been ignored as a potential wireless power source for medical devices. Near-field waves can be used safely in wireless power systems.

A much smaller more efficient radio wave circulator has the potential to double the useful bandwidth in wireless communications by enabling full-duplex functionality#meaning devices can transmit

and relay commands this tiny wireless chip costs pennies to Make it's cheap enough to become the missing link between the internet as we know it

so that it can be installed on any gadget anywhere. ow do you put a bidirectional wireless control system on every lightbulb?

The antenna had to be small one-tenth the size of a Wi-fi antenna and operate at the incredibly fast rate of 24 billion cycles per second.

#Wi-fi backscatter could make Internet of things real A new method uses radio frequency signals as a power source

and reuses existing Wi-fi infrastructure to provide internet connectivity to battery-free devices. Called Wi-fi backscatter this technology is the first that can connect battery-free devices to Wi-fi infrastructure.

Imagine a world in which your wristwatch or other wearable device communicates directly with your online profiles storing information about your daily activities where you can best access it all without requiring batteries.

and engineering at the University of Washington. e now have the ability to enable Wi-fi connectivity for devices

what Wi-fi typically requires. he researchers will publish their results at the Association for Computing Machinery s Special interest Group on Data communication s annual conference this month in Chicago.

and wireless signals in the air. This work takes that a step further by connecting each individual device to the internet

The challenge in providing Wi-fi connectivity to these devices is that conventional low-power Wi-fi consumes three to four orders of magnitude more power than can be harvested in these wireless signals.

and circuitry that can talk to Wi-fi-enabled laptops or smartphones while consuming negligible power.

These tags work by essentially ookingfor Wi-fi signals moving between the router and a laptop or smartphone.

or not reflecting the Wi-fi router s signals slightly changing the wireless signal. Wi-fi-enabled devices like laptops

and smartphones would detect these minute changes and receive data from the tag. In this way your smart watch could download emails

if you re looking for specific patterns you can find it among all the other Wi-fi reflections in an environmentsays coauthor Joshua Smith an associate professor of computer science and engineering and of electrical engineering.

The Wi-fi backscatter tag has communicated with a Wi-fi device at rates of 1 kilobit per second with about 2 meters between the devices.

#Vibrating glove could teach you Braille A new wireless computing glove can help people learn to read

And it s an important first step in advancing wireless signal processing and designing ultrathin efficient cell phones. ur devices are much smaller than any other sources of radio signals

In addition most of these components cannot be tuned easily in frequency requiring multiple copies to cover the range of frequencies used for wireless communication. raphene NEMS can address both problems:

#Wireless device grabs lost energy from Wi-fi Using inexpensive materials configured and tuned to capture microwave signals researchers have designed a power harvesting device with efficiency similar to that of modern solar panels.

or Wi-fi signals the researchers say. The key to the power harvester lies in its application of metamaterials engineered structures that can capture various forms of wave energy and tune them for useful applications.

and recover a Wi-fi signal that would otherwise be lost Katko says. Another application could be to improve the energy efficiency of appliances by wirelessly recovering power that is now lost during use. he properties of metamaterials allow for design flexibility not possible with ordinary devices like antennassays Katko. hen traditional antennas are close to each other in space they talk to each other

and open up new possibilities for wireless communication at much higher frequencies. The scientific achievement is twofold.

Traditional streaming involves downloading 30 to 60 seconds of video ahead of time with the video quality and speed varying depending on wireless signal strength.

and Wi-fi connectivity and a kinematically coupled bed that uses magnets to ensure high-precision printing even after the various components are inserted manually.

My company, the Home security Company, is giving away a free wireless home security system and in-home installation.##

But charging moving vehicles with high-power wireless chargers below them is complex.####Researchers at North carolina State university have developed a method to deliver power to moving vehicles using simple electronic components, rather than the expensive power electronics or complex sensors previously employed.

Wireless charging through magnetic induction##the same type typically used for electric toothbrushes##is being pursued by a number of companies for consumer electronics and electric vehicles.

Stationary inductive chargers for electric vehicles typically use sensors to ensure that the receiver coils on the vehicle are aligned above wireless charging pads correctly.

Commercial interest in wireless charging systems for moving vehicles is growing. Qualcomm is working on a##dynamic##charging system that builds off its current stationary#wireless EV charger.

The University of Utah has tested a wireless charging infrastructure for city buses and has spun out a company called Wireless Advanced Vehicle Electrification#to build commercial products.

With the Utah system a bus could charge from coils placed under the road surface where passengers load or at traffic lights.

a company that makes wireless charging equipment. But the electronic tooling used for small electronics,

Its included suction cup mount has an##energy antenna##embedded inside to gather electromagnetic activity (such as from#Wi-fi signals) to translate for use as power,

You can already buy wireless recharging pads: Place your cellphone on a pad that s plugged into the wall,

It will be the last thing to go wireless, but it will go wireless.####Is the process safe?

In recent weeks, Intel and Hon hai/Foxconn, seeing wireless charging as a possible killer app for electronic devices such as laptops

which is reported to have plans to test a wireless charging station for plug-in cars. The technology has applications outside the consumer sphere as well.

#Battery-free Wifi devices that run on radio waves What if devices could pull enough power wirelessly from the air to run themselves

Not so#according to a group of University of Washington engineers#who are building a communication system called Wifi backscatterthe system powers devices using radio waves

and connects them to laptops or smartphones over#Wifi networks. Previous research had shown it possible to run low-power devices off radio, TV,

We now have the ability to enable Wifi connectivity for devices while consuming orders of magnitude less power than

what Wifi typically requires. How does it work? The team made a tag that listens for Wifi signals being sent from a local router to a laptop or smartphone and vice versa.

The tag s antenna encodes data#by selectively reflecting or absorbing the signals. This selective reflection makes tiny changes in signal strength that can be detected

Given the prevalence of Wifi, this provides a great way to get low-power Internet of things devices to communicate with a large swath of devices around us, Ranveer Chandra,

Then there are a whole host of issues to work out dealing with wireless communications s

#Does internet privacy come at a premium? Would you pay for online privacy? Once we went online the concept of privacy changed.

The swiss Federal Institute of technology in Lausanne have developed a drone that can pinpoint the location of a mobile phone by picking up its Wi-fi signal.

The drone could also be used to provide Wi-fi if infrastructure was knocked out by a disaster,

The EPFL team noted its work underscores confidentiality issues with drones as its aircraft can pull phones Wi-fi network names and MAC addresses.

But it also only works in a search and rescue situation if a phone s Wi-fi connections are unprotected.

while Audi emphasizesfaster downloads and high-definition video streaming for up to eight devices used by passengers over the in-vehicle#Wi-fi#hotspot.

the batteries can deliver enough current for low-power wireless communications sensors, distinguishing them from other types of thin batteries.

a small wireless device on her wrist was monitoring her emotional ups and downs (through heart rate monitoring and electrical changes in her skin).

the company s initiative to bring the Internet to less-connected places around the world using high-altitude Wi-fi balloons.

you simply select your scope as your Wi-fi server, open your Shotview app and you re suddenly able to see whatever your barrel is pointed at.

backwards) of your hand Sharp movements such as drum hits This information is transmitted wirelessly to your computer, over Wifi (via the x-OSC board on the wrist).

#Altaeros Energies floating wind turbine churns out electricity and Wi-fi This floating turbine, developed by Altaeros Energies could someday travel to every remote corner of the globe.

While in the air, the turbines can also serve as Wi-fi, cell service hubs, and weather monitoring stations.

they are the same kind of fields used in Wi-fi routers. In the house of the future, wire-free energy transfer could be as easy as wireless internet.

A nearby communications trailer provides a dedicated wireless communications link between the equipment and the operator.

The technology operates using a closed Wifi network to communicate between the operator station and the rig.

The closed network means that the Benchremote technology is independent of any other local Wifi network

In addition to providing access via current standards (Wifi LTE 3g or 2g connections) the Oneweb network would also give much-needed global emergency and first responder access for natural disasters refugee camps and other humanitarian needs.

#'Wi-fi'Nanoparticles Send Signals from the Brain The problem with talking to our own brains,

with the idea of establishing a kind of direct wireless connection to neurons. DNEWS: Brain-To-Brain Networking Takes First Baby Stepsthe agnetoelectricnanoparticles (MENS) injected in the mice have several special properties.

#LED Bulbs Offer a Low energy, Wireless Connection This lightbulb could work as your next wireless router.

At the University of Virginia, researchers have unveiled a new way to transmit wireless data in light waves from LED LIGHTS a much more reliable and faster alternative to radio wave Wi-fi. DNEWS:

#NYC Is Turning Trash cans Into Wi-fi Hotspots Consider the humble trash can. Stalwart and immobile, it populates our cities by the thousands,

The Wireless internet option essentially turns the trash cans into free public Wi-fi hotspots, providing throughput of 50 to 75 MB per second.

the Wi-fi trash cans provide a strong signal that not blocked by buildings or other structures.

Wi-fi Sprinkler Saves Waterbigbelly is now working with the city to add Wi-fi to hundreds more waste stations throughout the city five boroughs, with a particular concentration in underserved neighborhoods.

and Wi-fi hot spots. More than 10,000 refurbished pay phone kiosks are set to go live by the end of the year.

They could even provide us with a global Wi-fi system On earth. Paulo Lozano leads a team working on Cubesat propulsion at the Massachusetts institute of technology.

Creating a universal"satellite Wi-fi""like existing satellite phone coverage, would require thousands of big satellites,

and 802. 11ac (Wifi) wireless standards even up to 20 MHZ bandwidth. ETADVANCED in contrast already accommodates ultrahigh bandwidths used by newer communication standards such as LTE Advanced (up to 80#megahertz) and the next-generation Wifi standard (up to 160 megahertz).

) Prepping for future communication standards is one thing that s helped the company thrive Dawson says.

Near the end of the last decade however a team of MIT researchers led by Professor of Physics Marin Soljacic took definitive steps toward more practical wireless charging.

We believe wireless charging has a potential to do that. He is not alone. Last month Witricity signed a licensing agreement with Intel to integrate Witricity technology into computing devices powered by Intel.

Courtesy of Witricity Corp. Full Screen Stronger couplingsimilar wireless charging technologies have been around for some time. For instance traditional induction charging

Wireless charging: An expectationthese days Gruzen sees wireless charging as analogous to the evolution of a similar technology Wifi that he witnessed in the early 2000s as senior vice president of global notebook business at Hewlett packard.

At the time Wifi capabilities were implemented rarely into laptops; this didn t change#until companies began bringing Wireless internet access into hotel lobbies libraries airports and other public places.

Now having established a standard for wireless charging#of consumer devices with the A4wp (Alliance for Wireless Power) known as Rezence Witricity aims to be the driving force behind wireless charging.

Soon Gruzen says it will be an expectation much like Wifi. You can have a charging surface wherever you go from a kitchen counter to your workplace to airport lounge

and hotel lobbies he says. In this future you re not worried about carrying cords. Casual access to topping off power in your devices just becomes an expected thing.

This is where we re Going with an expected rise of wireless charging one promising future application Soljacic sees is in medical devices especially implanted ventricular assist devices (or heart pumps) that support blood flow.

and the information sent back via wireless communications. Detecting leaks by sensing a pressure gradient close to leak openings is a novel idea

such as developing low-cost sensing technology with wireless communication that could be retrofitted on to older equipment.

But perhaps the most logical added payload Glass says is Wi-fi technology: If you have a remote village for instance he says you can put a Wi-fi unit up outside the village

and you re much higher than you d get with a traditional tower. That would allow you to cover six to eight times the area you would with a tower.

The ball also serves as its own wireless hotspot, through Bounce Imaging network, that a mobile device uses to quickly grab those images ecause a burning building probably isn going to have Wi-fi,

but we still want to work with a first responder existing smartphone, Aguilar says. But the key innovation, Aguilar says,

for example using Wi-fi, over a long distance. At the moment, the coin-sized batteries used in many small electronic devices have limited very ability to deliver a lot of power at once,

which is what such data transmissions need. ong-distance Wi-fi requires a fair amount of power,

The researchers combined semiconductor nanorods and carbon nanotubes to create a wireless light-sensitive flexible film that could potentially replace a damaged retina.

Tour noted future generations of long-range Wi-fi may also benefit. It's going to be important as Wi-fi becomes more ubiquitous especially in cities.

Signals can't get through anything that's metallic in nature but these layers are so thin they won't have any trouble penetrating.

#Device Could Harvest Wasted Energy From Wi-fi, Satellite Signals A wireless device developed by researchers at Duke university that converts microwaves into electricity could eventually harvest Wi-fi or satellite signals for power according to its creators.

It could also one day be built into cell phones to let them charge while not in use they say.

Instead devices in airplane mode meaning devices with all their radios (Wi-fi Bluetooth and cellular) turned off would be just fine to use.

which include transmission towers (cellular and digital television broadcasting) fluorescent lighting Wi-fi Power lines and certain appliances.

#Facebook Says Wi-fi Drones Will be sized Jumbo jet If a new Facebook plan is successful the easiest way to access the cloud may be...

Facebook wants to spread Wi-fi Internet to unconnected parts of the world with drones and at#a summit in New york earlier this week the company revealed those drones will be the size of jumbo jets.

The system uses a Wi-fi protocol for vehicles 802. 11p to see where the driver cannot.

Wi-fi as you probably know from using it in your house for phones laptops and gaming systems in different rooms can.

Wireless communications systems in the robots will allow users to control the droids remotely. The robot is a tensegrity structure

##$40 hidecell. compros Storing your phone in a metal-lined bag will eliminate surveillance possibilities by blocking cell-tower signals along with your Wi-fi GPS and Bluetooth connections.

and is stable in the face of multi-second time delays allowing unreliable wifi communication to be used in the landing.

and (2) measurement information (or control information) needed to be transmitted to the vehicle wirelessly for control purposes which at the time of development (using Wifi) generally incurred a lot of latency and packet loss.

An interchangeable wireless module (either Wifi or proprietary frequency hopping spread spectrum) allows us to communicate with each unit e g. telemetry and user commands;

and featuring aâ high-precision motion capture system a wireless communication network and custom software for executing estimation and control.

For example, if an ipad or ipod is connected to the drone Wifi, it cannot send its data.

#Researchers at Brown U Develop Terahertz Wireless Multiplexing A Brown University-led team of researchers has developed a system for multiplexing

solving one of the technical challenges of terahertz wireless networking, which could potentially deliver data at rates that are up to 100 times faster than current wireless technology.

Terahertz waves operate at a much higher frequency than the microwaves used in cellular and Wi-fi communications,

However, there are numerous technical challenges to solve before terahertz wireless can become a reality. This new multiplexing system potentially solves one of those challenges.

The signal can be accessed using 3g, Wi-fi or a USB connection on a computer. The scientists, who started working on FRED

and Hollywood A team of researchers at MIT Computer science and Artificial intelligence Lab (CSAIL) has believed long that wireless signals like Wifi can be used to see things that are invisible to the naked eye.

director of the Wireless@MIT center. ou could also imagine it being used to operate your lights and TVS,

In August the team presented Emerald to President Obama as part of the White house first annual Demo Day. n the same way that cellphones and Wifi routers have become indispensable parts

#Wifi Calling offers coverage for UK homes, small offices EE on Tuesday announced the launch of Wifi Calling to make calls and texts available in every home and small office in the UK.

The numbers lead EE to believe that Wifi Calling could benefit the country's increasingly mobile workforce.

What's more, the National Association of Estate agents said Wifi Calling can stop house sellers suffering from losing out because of poor mobile coverage.

The EE release went on to promote Wifi Calling as having a potential change on the value of a home.

"Wifi Calling will make a real difference to millions of customers across the UK, from basement flats in London to the most rural homes in the country."

Wifi Calling from EE uses the phone's normal dialer and contacts book to make calls,

"More new and existing devices will be added to the Wifi Calling range in the coming weeks, and by summer 2015 more than five million EE pay monthly customers will have access to Wifi Calling."

"Initially, said the BBC, The Wifi Calling service will be limited to pay monthly subscribers using Samsung's Galaxy S6 and S5 phones and Microsoft's new Lumia 640."

"Since it requires specific mobile data components to be built into the devices, it cannot be extended to other older models,

"Wi-fi calling allows you to use a Wi-fi network to make and receive phone calls, rather than using the traditional mobile network,

With EE's service,"you may not even notice you're actually using a Wi-fi network rather than the mobile one

when using a Wi-fi network to connect to friends. EE is a digital communications company in Britain.

#See through Walls by the Glow of Your Wi-fi It used to be that a bad guy besieged by police could just shoot out the lights and hide in the dark.

Researchers at University college London (UCL) have devised a system for detecting the Doppler shifts of ubiquitous Wi-fi

The UCL technique uses only passive radiationrom Wi-fi routers (using emissions in any of the IEEE 802.11 b, g, n, ac), ambient GSM and LTE mobile signals,

a reference channel, receiving the baseline signal from the Wi-fi access point or other RF source,

Tan and company built their igh Doppler resolution passive Wi-fi radaron two multi-frequency, software-defined, FPGA-based transceivers (National Instrumentsusrp,

Inexpensive and infinitely configurable mobile devices (enabled by advances in wireless and energy storage) have liberated technology from the office desktop.

While similar devices, known as wireless capsule endoscopes, have been created in the past, the TE is notable for its soft tail,

which uses a bidirectional wireless charger to direct energy to and from the car or house as needed.

Compared to existing methods that use wireless radio signals such as Wi-fi to track user gestures, light-based sensing does not introduce electromagnetic interferences

#Magnetic Signals Sent through the Human body for Wireless communication Electrical engineers at the University of California, San diego demonstrated a new wireless communication technique that works by sending magnetic signals through the human body.

The new technology could offer a lower power and more secure way to communicate information between wearable electronic devices, providing an improved alternative to existing wireless communication systems,

researchers said. They presented their findings Aug 26 at the 37th Annual International Conference of the IEEE Engineering in Medicine and Biology Society in Milan, Italy.

Communicating magnetic signals through the human body The new study presents a solution to some of the main barriers of other wireless communication systems:

To put this in the context of a personal full-body wireless communication network, information would neither be radiated off the body nor be transmitted from one person to another."

mimics a single-storey flat and contains a network of Wi-fi cameras and sensors. Scientists believe it is the first time helper robots have been developed in a"real-life"environment.

Wi-fi cameras and sensors have also been installed on furniture, doors, medicine bottles, fridges, plugs and kettles inside the flat, dubbed the Personalised Assisted living facility.

The technology involves harvesting radio frequency energy from existing wireless and broadcast networks, from 4g to digital television.

And some cybersecurity experts fear that hackers aboard an aircraft could bring down the plane using the onboard Wi-fi many commercial jets now offer to passengers."

Softcard (formerly Isis), a mobile wallet backed by big wireless carriers including Verizon, also struck a number of new deals that were likely a result of retailers attempting to give their customers an Android-based alternative to Apple Pay.

Mike Kisch, president and CEO of Cupertino, Calif.-based Soundhawk, says the company works with advanced wireless

Meredith Perry, who began tinkering with wireless charging as a paleobiology undergrad at the University of Pennsylvania,

#Terahertz breakthrough allows for ultrafast wireless communications A collaboration between US and Japanese researchers, have developed a key component

in order to enable wireless communications which operate up to 100x faster than current generation routers. Current wireless communications operate at microwave frequencies,

however as the demand for faster speeds and larger bandwidths increases, scientists are looking for ways to alleviate the communication bottleneck.

In terms of connectivity, the device includes Wi-fi 802.11 a b/g/n, Bluetooth 4. 0, LTE, FM radio, Micro-USB,

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