Researchers at Stanford University say they have developed a system capable of doubling the efficiency of wireless links that could be used to improve the performance of Wi-Fi networks or mobile phone latest gadgets. The innovation is that they can send and transmit simultaneously on the same frequency, thus doubling the efficiency.
They use two transmit antennas at both point of origin and destination, with the idea of canceling the transmission signal itself that reaches the receiver, so that it can "hear" the signals that come in the same frequency that is transmitted so guys what you think about
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