Dynamic two-way spectrum allocation method and storage medium against primary user sybil attack

Abstract

The invention belongs to the technical field of wireless communication, and discloses a dynamic two-way spectrum allocation method and an intelligent terminal against Sybil attacks of main users, which can defend against innovative Sybil attacks of main users and dynamically correspond to flexible real valuations for quotation. The strategy manipulates the spectrum auction model, and determines the bidding relationship between primary and secondary users in the model; conducts spectrum auctions through specific bidding strategies; adopts auction theory and mechanism to prevent primary user Sybil attacks, and conducts spectrum auctions online through bidding strategies. The invention integrates the auction model in economics, and designs an online dynamic spectrum auction mechanism that can meet the flexible requirements of secondary users for channels and prevent Sybil attacks from bidding; through this mechanism, primary and secondary users can submit their different requirements for spectrum by submitting And the corresponding estimation function to bid for the spectrum, preventing the Sybil attack of the illegal primary user, and realizing a better spectrum sharing mechanism.

Description

technical field [0001] The invention belongs to the technical field of wireless communication, and in particular relates to a dynamic two-way frequency spectrum allocation method and an intelligent terminal against a Sybil attack of a primary user. Background technique [0002] Currently, the closest existing technology: The radio spectrum is a critical but scarce resource for wireless communications. With the emergence of software-defined radios (SDR, software-defined radios) and wireless devices, the problem of spectrum shortage is becoming more and more serious, and has become a bottleneck for the rapid development of the wireless communication industry. In traditional static spectrum allocation mechanisms, long-term spectrum licenses are issued to wireless devices, resulting in low spectrum utilization due to traffic fluctuations. To improve spectrum utility, dynamic spectrum access mechanisms have been proposed to reallocate spectrum resources, where spectrum owners ar...

AI Technical Summary

Problems solved by technology

In the two-way spectrum auction, the main user also needs to bid, and it is very likely to attack

[0005] (2) Most of the existing auction-based spectrum allocation mechanisms are static allocation, that is, spectrum resources and user applications are regarded as static existence, regardless of the time factor, which is not realistic

[0006] (3) There is currently no spectrum allocation mechanism that can solve the above problems

That is, the existing algorithm cannot prevent the primary user Sybil attack and consider the flexibility of the time dimension of the spectrum

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