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Full-Duplex Chip Will Create a Wireless Bandwidth Bonanza

A full-duplex chip—one that can send and receive simultaneously—could double phone-network data capacity

11 min read
Full-Duplex Chip Will Create a Wireless Bandwidth Bonanza
Illustration: James Provost

opening illustration for Full Duplex On Chip feature Illustration: Greg Mably

Today’s radio technology has almost nothing in common with its counterpart from a century ago. Countless advances have produced gear that is fantastically smaller, more reliable, and more efficient in its use of power and bandwidth. And yet, one enormous limitation remains from long ago: Radios still can’t transmit and receive on the same frequency at the same time.

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Jay Last, a Father of Silicon Valley, Dies at 92

IEEE also mourns the loss of several former society presidents

4 min read
A smiling older man in glasses

Jay Last

Max S. Gerber/Redux

Jay Last

Silicon Valley pioneer

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How Claude Shannon Helped Kick-start Machine Learning

The “father of information theory” also paved the way for AI

3 min read
A photo of a man in a suit with his hand on a toy in a maze.
KEYSTONE/GETTY IMAGES

Among the great engineers of the 20th century, who contributed the most to our 21st-century technologies? I say: Claude Shannon.

Shannon is best known for establishing the field of information theory. In a 1948 paper, one of the greatest in the history of engineering, he came up with a way of measuring the information content of a signal and calculating the maximum rate at which information could be reliably transmitted over any sort of communication channel. The article, titled “A Mathematical Theory of Communication,” describes the basis for all modern communications, including the wireless Internet on your smartphone and even an analog voice signal on a twisted-pair telephone landline. In 1966, the IEEE gave him its highest award, the Medal of Honor, for that work.

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Fix DFM hotspots in P&R with sign-off confidence
Fix DFM hotspots in P&R with sign-off confidence

This paper introduces the Aprisa low power solution and innovative low-power methodology to quickly converge on low-power-optimized power, performance, and area.