Journal of Jilin University(Engineering and Technology Edition) ›› 2024, Vol. 54 ›› Issue (11): 3372-3378.doi: 10.13229/j.cnki.jdxbgxb.20230006

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Power allocation for a performance-selected underlay cognitive radio

Ming-yue ZHOU(),Yi-feng LI   

  1. School of Science and Engineering，Changchun University of Technology，Changchun 130012，China
  • Received:2023-01-04 Online:2024-11-01 Published:2025-04-24

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Abstract:

Aiming at the different target requirements of each user in the Underlay cognitive radio network， a power allocation scheme that flexibly adjusts the target according to its actual needs is proposed. A dual-objective adjustment factor is proposed to configure the performance indicators of user power consumption and quality of service （QoS）， and a performance selection objective function is constructed to effectively solve the problem of only considering unilateral performance improvement under the traditional power allocation algorithm. In order to verify the effectiveness of the scheme， the user power and signal to noise ratio under different adjustment factors are simulated and analyzed. Experiments show that by adjusting the target factor， low power consumption and high quality of service can be selected to meet the different needs of users in the same scenario.

Key words: cognitive radio, power allocation, adjustment factors

CLC Number: 

  • TN 929.5

Fig.1

Geometric figure of convex function"

Fig.2

Power of the PS algorithm and TMC algorithm"

Fig.3

Interference performance comparison between PS algorithm and TMC algorithm"

Fig.4

Performance comparison between PS algorithm and TMP algorithm"

Fig.5

Validity verification of PS algorithm adjustment factor"

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