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Thread: Wireless breakthrough: one frequency, multiple signals

  1. #1 Wireless breakthrough: one frequency, multiple signals 
    SEEKER Genesis's Avatar
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    A team of Italian radio boffins and one Swede have got one on their pioneering countryman Guglielmo Marconi by demonstrating a method of simultaneously transmitting multiple signals on the same frequency."This new radio technique allows the implementation of, in principle, an infinite number of channels in a given, fixed bandwidth, even without using polarization, multiport or dense coding techniques," the team explains in a paper in the March issue of the New Journal of Physics.If refined and commercialized, the technique developed by Fabrizio Tamburini and the team could radically increase the carrying capacity of today's cramped bandwith of radio, television, Wi-Fi, and wireless telecommunications.Since Marconi first demonstrated wireless communications in 1895 building on previous research undertaken by Nikola Tesla, Heinrich Hertz, Michael Faraday and others transmissions have been encoded using various combinations of phase, frequency, and amplitude modulation. All well and good, but signals are limited to transmission within a single (or frequency-hopping) slice of bandwidth.The breakthough achieved by Tamburini and his crew is based on adding orbital angular momentum to the signal-carrying mix, essentially twisting the directed signal in a way that offsets multiple signals in the same frequency.
    Now I need to ask, looking at this model, could this be a way at looking at the universe in a different way, Is it possible to scan for infinite signals on multiple
    frequency's and if so would we be able to look at time its self.






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    Quote Originally Posted by Genesis View Post
    A team of Italian radio boffins – and one Swede – have got one on their pioneering countryman Guglielmo Marconi by demonstrating a method of simultaneously transmitting multiple signals on the same frequency."This new radio technique allows the implementation of, in principle, an infinite number of channels in a given, fixed bandwidth, even without using polarization, multiport or dense coding techniques," the team explains in a paper in the March issue of the New Journal of Physics.If refined and commercialized, the technique developed by Fabrizio Tamburini and the team could radically increase the carrying capacity of today's cramped bandwith of radio, television, Wi-Fi, and wireless telecommunications.Since Marconi first demonstrated wireless communications in 1895 – building on previous research undertaken by Nikola Tesla, Heinrich Hertz, Michael Faraday and others – transmissions have been encoded using various combinations of phase, frequency, and amplitude modulation. All well and good, but signals are limited to transmission within a single (or frequency-hopping) slice of bandwidth.The breakthough achieved by Tamburini and his crew is based on adding orbital angular momentum to the signal-carrying mix, essentially twisting the directed signal in a way that offsets multiple signals in the same frequency.
    Now I need to ask, looking at this model, could this be a way at looking at the universe in a different way, Is it possible to scan for infinite signals on multiple
    frequency's and if so would we be able to look at time its self.
    It's already been shown that the vortex mode described by the Tamburini team is subsumed by existing technology (specifically, MIMO), so there's actually no capacity advantage at all. And it has nothing whatsoever to do with Tesla. In a few special cases, the vortex mode may permit somewhat simpler hardware, but that's to be expected. General-purpose solutions are almost always more complex than ones designed for a specialized subset of the general.

    And as for being able to "look at time itself," I have no idea what that even means. But since vortex mode propagation is a subset of MIMO (which is already in use), it brings us no new capability that we haven't already had for years.


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