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

Active Publication Date: 2019-03-01
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] A large number of solutions have been proposed in the literature to detect pilot pollution attacks, but these schemes have high complexity and / or cannot reliably prevent pilot pollution attacks

Method used

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  • Secure paring method for MIMO systems
  • Secure paring method for MIMO systems
  • Secure paring method for MIMO systems

Examples

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Embodiment Construction

[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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PUM

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Abstract

A first MIMO device for channel estimation and verification, the first MIMO device comprising: a transmitter configured to transmit a first pilot sequence, a receiver configured to receive a second pilot sequence, a channel estimator configured to estimate a first channel based on the received second pilot sequence, a key generator configured to generate a first key based on the estimated first channel, and a key confirmation unit configured to determine whether the first key corresponds to a second key of a second MIMO device.

Description

technical field [0001] The present invention relates to a first MIMO device, a second MIMO device, a system and a method for channel estimation. [0002] The present invention also relates to a computer-readable storage medium storing program code including instructions for executing the method. Background technique [0003] In order to ensure the security of communication systems, the use of physical layer security techniques has recently been proposed: by properly encoding the transmitted signal, the designated receiver can fully decode it without leaking any information about the message to the eavesdropping device the signal. This technique exploits the random nature of the noise affecting physical layer transmissions, as well as the specific characteristics of the channel between users. When the terminal can obtain multiple antennas, it can obtain multiple-input-multiple-output-multiple-eavesdropper (MIMOME for short) channels, and the availability of multiple channel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L9/08H04L9/00
CPCH04L9/002H04L9/0875
Inventor 斯特凡诺·托马辛英马尔·兰德
Owner HUAWEI TECH CO LTD
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