Cognitive radio network anti-hostile interference cooperative broadcasting method based on non-coordinated frequency hopping

A technology of cognitive wireless network and interference cooperation, which is applied in the field of cognitive wireless network anti-hostile interference cooperative broadcasting, can solve the problems of reducing system communication efficiency, achieve the effects of improving communication efficiency, high communication efficiency, and solving poor scalability

Inactive Publication Date: 2014-08-13
XIAMEN UNIV
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Problems solved by technology

But such random channel access reduces the communication efficiency of the system

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  • Cognitive radio network anti-hostile interference cooperative broadcasting method based on non-coordinated frequency hopping
  • Cognitive radio network anti-hostile interference cooperative broadcasting method based on non-coordinated frequency hopping

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Embodiment Construction

[0034] The present invention will be further described below with reference to the drawings and embodiments.

[0035] Frequency hopping communication (Frquency-Hopping Spread Spectrum; FHSS) is a traditional anti-hostile jamming attack technology. Through analysis of its technology, it can be known that traditional frequency hopping communication needs to pre-share frequency hopping between the source node and the receiving node before communication starts. On the one hand, this requirement is not conducive to the expansion of the network; on the other hand, the network is prone to large-scale hostile interference attacks due to the disclosure of the shared key. Therefore, while maintaining the performance of other aspects of traditional frequency hopping technology, the realization of frequency hopping communication that does not require pre-shared keys and maintains high communication efficiency has become the key to anti-hostile interference technology. The technical solution ...

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Abstract

The invention provides a cognitive radio network anti-hostile interference cooperative broadcasting method based on non-coordinated frequency hopping, and relates to wireless network communication. The provided cognitive radio network anti-hostile interference cooperative broadcasting method based on non-coordinated frequency hopping is applied to a cognitive radio network on the premise of having no influence on expandability and communication efficiency of the network. The cognitive radio network anti-hostile interference cooperative broadcasting method based on non-coordinated frequency hopping is characterized in that firstly, a source node and a non-coordinated frequency hopping technology switched in a cognitive user random selection channel are adopted, so that the hostile interference of the radio network can be resisted, and meanwhile, the problems of poor expandability, low safety and the like caused by needing advance sharing of secret keys in a conventional frequency hopping technology are solved; and secondly, a cooperative broadcasting mechanism among cognitive users is introduced, namely, the cognitive users completing broadcast message receiving help the source node to transmit the broadcast message to other cognitive users in the network, and thus the communication efficiency of the cognitive radio network is improved.

Description

Technical field [0001] The present invention relates to wireless network communication, in particular to cognitive wireless network security, and in particular to a cognitive wireless network anti-hostile interference cooperative broadcasting method based on uncoordinated frequency hopping. Background technique [0002] With the rapid development of wireless communication technology, wireless products have begun to enter thousands of households, accompanied by the demand for higher speed and more spectrum resources. Nowadays, the shortage of spectrum has become one of the bottlenecks in the development of wireless communication. Cognitive Radio (CR) [J.Mitola,"Cognitive radio:An integrated agent architecture for software defined radio,"PhD.diss.,Royal Inst .Technol. (KTH), Stockholm, Sweden, 2000.] technology can effectively improve spectrum utilization. Because cognitive radio uses open spectrum and dynamic access methods, security has become an important issue restricting its ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W4/06H04W72/08H04W88/04H04W72/54
Inventor 肖亮陈桂权李燕
Owner XIAMEN UNIV
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