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www.us-tech.com


September, 2021


Asia Sees First CCS Conformance Test Lab


Continued from page 1 For all your workbench needs.


to grow, greater issues are sure to arise, necessitating interna- tionally accredited testing and


tion after three years and four months of preparation. Criteria for qualification include the abil- ity to test multiple vehicles and


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Splitting MMW Beams for Reliable 5G Networks


Continued from page 1


one gets in the way of that beam’s path, then the connection is blocked completely.


were able to provide a high- throughput connection of up to 800 Mb/s with 100 percent sig- nal reliability.


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Experimental multi-beam millimeter-wave system.


“Relying on a single beam


creates a single point of failure,” says Dinesh Bharadia, a profes- sor of electrical and computer engineering at UCSD’s Jacobs School of Engineering and lead researcher. He and his team have devel-


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oped a way to split the single MMW beam into multiple laser- like beams, which can each take a different direction to the receiv- er. By increasing the number of chances that the signal has to get to the receiver, better signal in- tegrity overall can be maintained in the presence of obstacles. Bharadia and his team test-


ed their system in an office building as well as outside and


The signal didn’t drop or


lose strength indoors with many obstacles like desks, walls, sculptures, etc., and outdoors, where the system could provide connectivity at 100 percent reli- ability at a distance of up to 262 ft (80m). “You would think that split-


ting the beam would reduce the throughput or quality of the sig- nal,” Bharadia explains. “But with the way that we’ve de- signed our algorithms, it turns out mathematically that our multi-beam system gives you a higher throughput while trans- mitting the same amount of power overall as a single-beam system.” r


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