Systems Engineering and Electronics ›› 2022, Vol. 44 ›› Issue (9): 2947-2954.doi: 10.12305/j.issn.1001-506X.2022.09.30

• Communications and Networks • Previous Articles     Next Articles

A trueful online double auction algorithm of the high frequency communication based on conflict decomposition

Bo YANG*, Yequn WANG, Guoce HUANG, Qilu SUN, Guisheng WANG   

  1. College of Information and Navigation, Air Force Engineering University, Xi'an 710077, China
  • Received:2021-06-18 Online:2022-09-01 Published:2022-09-09
  • Contact: Bo YANG

Abstract:

Aiming at the serious problem of frequency point conflict in high frequency cognitive radio under high network load, according to the fading characteristics of high frequency communication points and combined with the real online double auction model, a trueful online double auction based on conflict decomposition (TODA-CD) model is proposed. In TODA-CD model, the seller model considers the differences between different links and reconstructs the seller pricing model to improve the link reliability. The buyer model takes maximizing the expected revenue as the optimization goal. Firstly, the breadth first search algorithm is used to generate the frequency point conflict tree, which can analyze the frequency point conflict relationship in the high frequency cognitive network. Secondly, the model sets the frequency point preemption switching penalty function, and calculates the expected revenue of different switching schemes, to reconstruct the buyer's bidding price, completing the spectrum transaction at the second sealed price auction. Finally, the preemptive optimization of frequency point assignment in the network is realized. Simulation results show that under the condition of high network load, TODA-CD algorithm can effectively improve the spectrum utilization, reduce the number of preemptive handoffs, and improve the system revenue.

Key words: high frequency communication, dynamic spectrum access, online double auction, conflict decomposition

CLC Number: 

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