Secure paring method for MIMO systems
A device and key technology, applied in transmission systems, digital transmission systems, secure communication devices, etc., can solve problems such as inability to reliably prevent pilot pollution attacks, high complexity, etc., and achieve improved security levels and/or robustness The effect of stability and fast key comparison
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[0104] figure 1 A first MIMO device 100 for channel estimation and verification is shown, including: a transmitter 110 , a receiver 120 , a channel estimator 130 , a key generator 140 and a key confirmation unit 150 .
[0105] The transmitter 110 is used for sending the first pilot sequence. The first pilot sequence may be a predetermined pilot sequence, or a pilot sequence selected by the transmitter from a set of pilot sequences.
[0106] The receiver 120 is used for receiving the second pilot sequence. Transmitter 110 and receiver 120 are operable to transmit and receive the first and second pilot sequences using the same antenna.
[0107] The channel estimator 130 is used for estimating the first channel based on the received second pilot sequence. For example, the channel estimator 130 may be configured to estimate a channel matrix based on the received second pilot sequence.
[0108]The key generator 140 is configured to generate a first key based on the estimated fi...
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