Novel Power Control Algorithm for Cognitive Radio Network

Authors

Long Min, Department of Computer and Communication Engineering, Hunan Changsha University of Science and Technology, Changsha 410004, China;
Juanjuan Lei, Department of Computer and Communication Engineering, Hunan Changsha University of Science and Technology, Changsha 410004, China;

Abstract

Abstract: For the problems of near-far effect, large path loss, and stability of algorithm, etc., in the cognitive radio, a new power control algorithm was proposed. Utility function was improved effectively, where punishment factors, such as, link quality and the interference capacity limit of the primary users (PUs) were considered. Signal-to-interference radio (SINR) of cognitive users (CUs) was controlled above the minimum threshold, and the interference value of the CUs was controlled below the capacity tolerance of PUs. The existence of Nash equilibrium was given. Simulation results show that the new algorithm has better stability; the loss of path can be reduced with smaller transmission power; the near-far effect problem can be solved effectively, and the total interference of CUs is less than the interference capacity tolerance of PUs.

Recommended Citation

Min, Long and Lei, Juanjuan (2020) "Novel Power Control Algorithm for Cognitive Radio Network," Journal of System Simulation: Vol. 29: Iss. 7, Article 29.
DOI: 10.16182/j.issn1004731x.joss.201707029
Available at: https://dc-china-simulation.researchcommons.org/journal/vol29/iss7/29

First Page

1617

DOI Link

https://doi.org/10.16182/j.issn1004731x.joss.201707029

Last Page

1624

CLC

TN915.5

Recommended Citation

Long Min, Lei Juanjuan. Novel Power Control Algorithm for Cognitive Radio Network[J]. Journal of System Simulation, 2017, 29(7): 1617-1624.

DOI

10.16182/j.issn1004731x.joss.201707029