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Power Control Algorithm based on Non-Cooperative Game in Cognitive Radio Underlay Mode

Published: 13 July 2022 Publication History

Abstract

In the Cognitive radio underlay mode, spectrum utilization is improved by allowing primary users (PUs) and cognitive users (CUs) to coexist in the same frequency band, while multiple secondary users must interfere with the primary and other secondary users when using authorized spectrum resources. Therefore, this paper designs a new utility function for the interference problems and excessive power consumption problems existing in the existing power control algorithms. Based on the premise that in cognitive radio networks, cognitive users can use a non-cooperative game approach to reduce the transmit power of each cognitive user under the premise of satisfying the target signal-to-interference-plus-noise ratio(SINR), a new power control algorithm based on this utility function is proposed, aiming to reduce the power consumption caused by the SINR of some CUs exceeding the target value; and the existence and uniqueness of the Nash equilibrium is proved theoretically. Simulation results show that, compared with the classical NPCG algorithm and K-G algorithm, this algorithm can reduce the transmission power of cognitive users while guaranteeing the service volume of authorized and cognitive users, thus reducing the inter-user interference and improving the performance of the network.

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  • (2023)A game-theoretical paradigm for collaborative and distributed power control in wireless networksAnnals of Telecommunications10.1007/s12243-023-00976-579:1-2(1-14)Online publication date: 14-Aug-2023
  1. Power Control Algorithm based on Non-Cooperative Game in Cognitive Radio Underlay Mode

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    ICCAI '22: Proceedings of the 8th International Conference on Computing and Artificial Intelligence
    March 2022
    809 pages
    ISBN:9781450396110
    DOI:10.1145/3532213
    Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected]

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    Publication History

    Published: 13 July 2022

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    Author Tags

    1. cognitive radio
    2. non-cooperative game
    3. power control
    4. underlay model

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    • (2023)A game-theoretical paradigm for collaborative and distributed power control in wireless networksAnnals of Telecommunications10.1007/s12243-023-00976-579:1-2(1-14)Online publication date: 14-Aug-2023

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