research-article

Optimal Power Allocation in a Relay-aided Cognitive Network

Authors:

E. Veronica BelmegaAuthors Info & Claims

VALUETOOLS 2019: Proceedings of the 12th EAI International Conference on Performance Evaluation Methodologies and Tools

Pages 15 - 22

https://doi.org/10.1145/3306309.3306314

Published: 12 March 2019 Publication History

Abstract

In this paper, we address a power allocation problem in a relay-aided cognitive network. The network is composed by a primary and secondary user/destination pair and a relay, which helps the communication between the secondary user and its destination. The transmission of the secondary user and the helping relay is allowed provided that a minimum quality of service (QoS) constraint is met at the primary user. First, we derive the achievable rate regions under Decode-and-Forward (DF) and Compress-and-Forward (CF) relaying schemes. Then, we provide analytic expressions of the optimal power allocation policies at the secondary user and the relay. Remarkably, if the secondary direct link is negligible - the communication takes place only via the relay - DF is proven to always outperform CF, irrespective from the system parameters. If the secondary direct link is not negligible, our numerical results illustrate that DF outperforms CF only when the relay is close to the secondary user.

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Cited By

Benatia YSavard ANegrel RBelmega E(2022)Unsupervised deep learning to solve power allocation problems in cognitive relay networks2022 IEEE International Conference on Communications Workshops (ICC Workshops)10.1109/ICCWorkshops53468.2022.9814541(331-336)Online publication date: 16-May-2022
https://doi.org/10.1109/ICCWorkshops53468.2022.9814541
Savard ABelmega E(2020)Optimal power allocation policies in multi-hop cognitive radio networks2020 IEEE 31st Annual International Symposium on Personal, Indoor and Mobile Radio Communications10.1109/PIMRC48278.2020.9217334(1-6)Online publication date: Aug-2020
https://doi.org/10.1109/PIMRC48278.2020.9217334
Savard ABelmega E(2020)Full-Duplex Relaying for Opportunistic Spectrum Access Under an Overall Power ConstraintIEEE Access10.1109/ACCESS.2020.30240108(168262-168272)Online publication date: 2020
https://doi.org/10.1109/ACCESS.2020.3024010

Index Terms

Optimal Power Allocation in a Relay-aided Cognitive Network
1. Mathematics of computing
  1. Information theory
    1. Coding theory
  2. Mathematical analysis
    1. Mathematical optimization
      1. Continuous optimization
        Nonconvex optimization

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VALUETOOLS 2019: Proceedings of the 12th EAI International Conference on Performance Evaluation Methodologies and Tools

March 2019

202 pages

ISBN:9781450365963

DOI:10.1145/3306309

Copyright © 2019 ACM.

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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EAI: The European Alliance for Innovation
Universitat de les Illes Balears: Universitat de les Illes Balears

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Association for Computing Machinery

New York, NY, United States

Publication History

Published: 12 March 2019

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VALUETOOLS 2019

VALUETOOLS 2019: 12th EAI International Conference on Performance Evaluation Methodologies and Tools

March 12 - 15, 2019

Palma, Spain

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VALUETOOLS 2019 Paper Acceptance Rate 18 of 42 submissions, 43%;

Overall Acceptance Rate 90 of 196 submissions, 46%

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Cited By

Benatia YSavard ANegrel RBelmega E(2022)Unsupervised deep learning to solve power allocation problems in cognitive relay networks2022 IEEE International Conference on Communications Workshops (ICC Workshops)10.1109/ICCWorkshops53468.2022.9814541(331-336)Online publication date: 16-May-2022
https://doi.org/10.1109/ICCWorkshops53468.2022.9814541
Savard ABelmega E(2020)Optimal power allocation policies in multi-hop cognitive radio networks2020 IEEE 31st Annual International Symposium on Personal, Indoor and Mobile Radio Communications10.1109/PIMRC48278.2020.9217334(1-6)Online publication date: Aug-2020
https://doi.org/10.1109/PIMRC48278.2020.9217334
Savard ABelmega E(2020)Full-Duplex Relaying for Opportunistic Spectrum Access Under an Overall Power ConstraintIEEE Access10.1109/ACCESS.2020.30240108(168262-168272)Online publication date: 2020
https://doi.org/10.1109/ACCESS.2020.3024010

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