Guest_Jim_* Posted May 21, 2015 Posted May 21, 2015 We may not realize it, because we cannot see it, but wireless congestion is an issue that limits rates and the number of users connecting to a single access point. It does not help matters that devices must transmit and receive on different channels. That may change soon though, thanks to researchers at the University of Bristol developing a duplexer small enough and cheap enough to integrate into phones. The reason devices have to transmit and receive on different channels is because the emissions would interfere with each other if they were on the same frequency. A duplexer allows for the same frequency to be used by effectively removing this interference. The prototype made at Bristol suppressed the interference by a factor of over 100 million, all while using inexpensive and small components that can fit in mobile devices. With this duplexer, filtering components could be removed from the devices, which would open up the possibility for unrestricted global roaming by allowing the devices to use any frequency band. This in turn could reduce costs as a single model could be manufactured for the entire world, and thus take advantage of the economics of scale. Source: University of Bristol Back to original news post Share this post Link to post Share on other sites More sharing options...
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