Method for defending frequency spectrum detection data falsification attack and in cognitive wireless network

A technology of cognitive radio and spectrum detection, applied in the field of defense against forged data attacks of spectrum detection

Active Publication Date: 2010-10-13
SPREADTRUM COMM (SHANGHAI) CO LTD
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  • Summary
  • Abstract
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  • Method for defending frequency spectrum detection data falsification attack and in cognitive wireless network
  • Method for defending frequency spectrum detection data falsification attack and in cognitive wireless network
  • Method for defending frequency spectrum detection data falsification attack and in cognitive wireless network

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Embodiment Construction

[0049] In order to understand the technical content of the present invention more clearly, the following examples are given in detail.

[0050] see figure 1 As shown, the cognitive radio network implements a method for defending against spectrum detection forged data attacks, which includes the following steps:

[0051] (1) Establish the spectrum detection model of the cognitive radio network, specifically:

[0052] The spectrum detection model of the cognitive radio network is established according to the following formula:

[0053] x ( t ) = n ( t ) , H 0 h · s ( ...

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Abstract

The invention discloses a method for defending frequency spectrum detection data falsification attack in a cognitive wireless network, which comprises the following steps: establishing a frequency spectrum detection model, acquiring local energy estimation level-values by detecting a target frequency band by a secondary user, establishing a wireless communication link and exchanging updating local energy estimation level-values by the secondary user and neighbor users to generate a neighbor user set, calculating local update by the secondary user and sending energy estimation level-values to the neighbor users for consistency processing / repeating the above steps so as to converge all energy estimation level-values in preset sharing values within an error range. The method for defending frequency spectrum detection data falsification attack in the cognitive wireless network ensures detection-loss rate and false-alarm rate are lower than the regular level, improves safety in cognitive wireless field and maximizes the use of wireless resources. The method has the advantages of stable and reliable working performance and wider application range.

Description

technical field [0001] The present invention relates to the field of cognitive radio (CR), in particular to the technical field of cognitive radio network security, and specifically refers to a method for realizing defense against spectrum detection falsified data attacks in a cognitive radio network. Background technique [0002] Recent advances in wireless communications place ever-increasing demands on spectrum resources. Regulatory agencies, such as the Federal Communications Commission (FCC), are considering opening licensed users to operate from licensed (primary) frequency bands to unlicensed (secondary) frequency bands on a non-interference basis. Dynamic Spectrum Acquisition (DSA) is a method that enables unlicensed users to operate in a certain spectrum band as long as the interference is below a certain threshold. [0003] One way to implement DSA is to adopt the idea of ​​Cognitive Radio (CR), which senses the surrounding environment and adjusts the internal sta...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W24/00H04B17/00H04B17/382
Inventor 于非李志强黄民义宋铁城
Owner SPREADTRUM COMM (SHANGHAI) CO LTD
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