Researchers from the Electronics and Telecommunications Research Institute recently demonstrated their new Look and Link wireless technology, which could improve device-to-device (D2D) communications.
Current D2D technologies require tapping a smartphone to an object or choosing a device with which to connect from a drop-down list, in steps that surveys indicate deter users. To address this issue, Look and Link uses a beamforming technique that sends a phone's transmissions to the intended receiving device via an array of antennas.
The researchers say their system would enable users, for example, to use smart glasses to connect to a smart sign in a restaurant window to obtain information just by looking in the direction of the sign. Whereas conventional beam patterns would signal other devices in the vicinity of the sign, the new pattern randomly alters the beam shape over short time intervals in a method the team calls "jittering." Thus, only the smart sign would receive a signal of consistently high strength, and other nearby devices would not respond.
Look and Link also enables devices to connect rapidly, requiring only a few seconds compared to nearly one minute with Bluetooth, says lead researcher Young-Hoon Kim.
From IEEE Spectrum
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