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Indian origin researcher’s team achieves WiFi at 10,000 times less power

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Washington: A team of US Engineers which included and Indian origin researcher demonstrated that it is possible to generate Wi-Fi transmissions using 10,000 less power than conventional methods. This is an attempt to save more energy while playing games and doing other things that eat more energy.

The new “Passive Wi-Fi” system also consumes 1,000 times less power than existing energy-efficient wireless communication platforms, such as Bluetooth Low Energy and Zigbee, said computer scientists and electrical engineers from the University of Washington.

“We wanted to see if we could achieve Wi-Fi transmissions using almost no power at all. That is basically what ‘Passive Wi-Fi’ delivers. We can get Wi-Fi for 10,000 times less power than the best thing that’s out there,” said study co-author Shyam Gollakota, assistant professor of computer science and engineering.

“Passive Wi-Fi” can for the first time transmit Wi-Fi signals at bit rates of up to 11 megabits per second that can be decoded on any of the billions of devices with Wi-Fi connectivity. These speeds are lower than the maximum Wi-Fi speeds but 11 times higher than Bluetooth. Apart from saving battery life, wireless communication that uses almost no power will help enable an “Internet of Things” reality where household devices and wearable sensors can communicate using Wi-Fi without worrying about power.

“All the networking, heavy-lifting, and power-consuming pieces are done by the one plugged-in device. The passive devices are only reflecting to generate the Wi-Fi packets, which is a really energy-efficient way to communicate,” explained co-author Vamsi Talla, an electrical engineering doctoral student. To achieve such low-power Wi-Fi transmissions, the team essentially decoupled the digital and analog operations involved in radio transmissions.

The Passive Wi-Fi architecture assigns the analog, power-intensive functions – like producing a signal at a specific frequency — to a single device in the network that is plugged into the wall. An array of sensors produces Wi-Fi packets of information using very little power by simply reflecting and absorbing that signal using a digital switch.

In real-world conditions on the university campus, the team found the passive Wi-Fi sensors and a smartphone can communicate even at distances of 100 feet between them. Because the sensors are creating actual Wi-Fi packets, they can communicate with any Wi-Fi enabled device right out of the box. “Our sensors can talk to any router, smartphone, tablet or other electronic device with a Wi-Fi chipset,” noted electrical engineering doctoral student Bryce Kellogg.

The technology can enable entirely new types of communication that haven’t been possible because energy demands have outstripped available power supplies. It could also simplify our data-intensive worlds. “Now that we can achieve Wi-Fi for tens of microwatts of power and can do much better than both Bluetooth and ZigBee, you could now imagine using Wi-Fi for everything,” said Joshua Smith, associate professor of computer science and engineering.

The technology has also been named one of the 10 breakthrough technologies of 2016 by the journal MIT Technology Review. A paper describing those results will be presented in March at the 13th USENIX Symposium on Networked Systems Design and Implementation in California. (IANS)

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Canon India Ramps Up Efforts To Grab Healthcare Imaging, Security Market

On the camera front, India offers great opportunities in segments like wedding, wildlife, sports and media

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Canon India also showcased EOS-1D X Mark III - the flagship product from the Canon EOS range, featuring latest advancements and innovations in digital imaging technology. Wikimedia Commons

After cementing its position across four key business verticals — camera, home printers, office printers and commercial printing solutions — Canon India is now ramping up its effort to top the growing healthcare imaging and security surveillance market in the country, a top company official said here on Wednesday.

After grabbing a substantial share in the Indian market in the professional printing segment which has been among the fastest growing verticals for Canon in India, the company now eyes diagnostic imaging market which is witnessing a tremendous growth with new super-specialty hospitals and diagnostic centres being opened at a fast pace, including in the tier II and II towns.

“In 2020, our key focus areas will be medical and security verticals in India. There have been a strong demand in the field of diagnostic imaging like MRIs, CT scans and X rays in the recent past which, we think, is an important segment for us in this country going forward,” Kazutada Kobayashi, President and CEO, Canon India, told IANS.

Although India will be the youngest country in the world by 2020 with a median age of 29 years, the number of elderly people is likely to increase significantly after that, according to the “State of Elderly in India” report.

By 2021, the elderly population will reach 143 million.

Canon
After cementing its position across four key business verticals — camera, home printers, office printers and commercial printing solutions — Canon India is now ramping up its effort to tap the growing healthcare imaging and security surveillance market in the country. Wikimedia Commons

According to market research firm Mordor Intelligence, the increase in life expectancy over the years has resulted in an increase in the population of the elderly. Hence, the growing geriatric population is expected to augment the demand for diagnostic imaging equipment.

The global medical imaging market was approximately $34 billion in 2018 and is expected to generate around $48.6 billion by 2025, according to Zion Market Research, and the of a huge patient pool and rise in the number of hospitals and diagnostic centres in India, Japan and China are anticipated to fuel the medical imaging market in the Asia Pacific.

“Today, if you go to a hospital and take a picture of your chest, that needs to be printed on a film. We propose to print that on a paper. This is my economical and environmental-friendly vision,” said a beaming Kobayashi on the sidelines of the launch of its flagship camera EOS-1D X Mark III.

According to him, security is another big area to focus on.

“Security surveillance camera systems have come of age and at Canon, we are aiming to make a revolution in this area soon,” said the executive.

Canon’s business in India is divided between business-to-consumer (B2C) and business-to-business (B2B) verticals.

The B2C category includes camera and home printers while B2B includes commercial printers and sales to corporates and MSMEs.

Canon India also showcased EOS-1D X Mark III – the flagship product from the Canon EOS range, featuring latest advancements and innovations in digital imaging technology.

“On the camera front, India offers great opportunities in segments like wedding, wildlife, sports and media. One great observation is that the demand for high-end cameras is also coming from smaller Indian towns and we are excited about this,” said C. Sukumaran, Director, Consumer Systems Products and Imaging Communication Products, Canon India.

Priced at Rs 575,995 (taxes included) for the body, including 512GB CF Express Card and Reader, the EOS-1D X Mark III will be available mid-February onwards at select retail outlets across the country.

The EOS-1D X Mark III offers an unmatched continuous shooting speed up to 16fps with viewfinder shooting. It houses a newly developed 20.1MP Full Frame CMOS sensor.

canon
After grabbing a substantial share in the Indian market in the professional printing segment which has been among the fastest growing verticals for Canon in India, the company now eyes diagnostic imaging market which is witnessing a tremendous growth with new super-specialty hospitals and diagnostic centres being opened at a fast pace, including in the tier II and II towns. Wikimedia Commons

“The newly developed algorithms in the camera enable not just eye detect and face detect autofocus but also head detect autofocus. This allows highly precise autofocus and tracking even in challenging conditions and with multiple and rapidly moving subjects,” informed Sukumaran.

ALSO READ: Huawei Reveals Full List of Devices in Global Market Eligible To Have EMUI 10

According to Kobayashi, the high-end camera will further enable the company promote the photography culture in India.

“Our latest offering will cater to the growing list of professional photographers in India and open up newer possibilities in the imaging space,” he added. (IANS)