Joint User and Power Allocation in Underlay Cognitive Radio Networks with Multiple Primary Users' Security Constraints

Ding XU; Qun LI

doi:10.1587/transfun.E100.A.2061

Joint User and Power Allocation in Underlay Cognitive Radio Networks with Multiple Primary Users' Security Constraints

Ding XU, Qun LI

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In this letter, we consider a cognitive radio network where multiple secondary users (SUs) share the spectrum bands with multiple primary users (PUs) who are facing security threats from multiple eavesdroppers. By adopting the PU secrecy outage constraint to protect the PUs, we optimize the joint user and power allocation for the SUs to maximize the SU ergodic transmission rate. Simulation results are presented to verify the effectiveness of the proposed algorithm. It is shown that the proposed algorithm outperforms the existing scheme, especially for a large number of PUs and a small number of SUs. It is also shown that the number of eavesdroppers has negligible impact on the performance improvement of the proposed algorithm compared to the existing scheme. In addition, it is shown that increasing the number of eavesdroppers has insignificant impact on the SU performance if the number of eavesdroppers is already large.

Publication: IEICE TRANSACTIONS on Fundamentals Vol.E100-A No.9 pp.2061-2064

Publication Date: 2017/09/01

Publicized

Online ISSN: 1745-1337

DOI: 10.1587/transfun.E100.A.2061

Type of Manuscript: LETTER

Category: Communication Theory and Signals

Authors

Ding XU
Nanjing University of Posts and Telecommunications
Qun LI
Nanjing University of Posts and Telecommunications

Keyword

cognitive radio, user and power allocation, secrecy, outage probability, eavesdropping

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Ding XU, Qun LI, "Joint User and Power Allocation in Underlay Cognitive Radio Networks with Multiple Primary Users' Security Constraints" in IEICE TRANSACTIONS on Fundamentals, vol. E100-A, no. 9, pp. 2061-2064, September 2017, doi: 10.1587/transfun.E100.A.2061.
Abstract: In this letter, we consider a cognitive radio network where multiple secondary users (SUs) share the spectrum bands with multiple primary users (PUs) who are facing security threats from multiple eavesdroppers. By adopting the PU secrecy outage constraint to protect the PUs, we optimize the joint user and power allocation for the SUs to maximize the SU ergodic transmission rate. Simulation results are presented to verify the effectiveness of the proposed algorithm. It is shown that the proposed algorithm outperforms the existing scheme, especially for a large number of PUs and a small number of SUs. It is also shown that the number of eavesdroppers has negligible impact on the performance improvement of the proposed algorithm compared to the existing scheme. In addition, it is shown that increasing the number of eavesdroppers has insignificant impact on the SU performance if the number of eavesdroppers is already large.
URL: https://globals.ieice.org/en_transactions/fundamentals/10.1587/transfun.E100.A.2061/_p

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@ARTICLE{e100-a_9_2061,
author={Ding XU, Qun LI, },
journal={IEICE TRANSACTIONS on Fundamentals},
title={Joint User and Power Allocation in Underlay Cognitive Radio Networks with Multiple Primary Users' Security Constraints},
year={2017},
volume={E100-A},
number={9},
pages={2061-2064},
abstract={In this letter, we consider a cognitive radio network where multiple secondary users (SUs) share the spectrum bands with multiple primary users (PUs) who are facing security threats from multiple eavesdroppers. By adopting the PU secrecy outage constraint to protect the PUs, we optimize the joint user and power allocation for the SUs to maximize the SU ergodic transmission rate. Simulation results are presented to verify the effectiveness of the proposed algorithm. It is shown that the proposed algorithm outperforms the existing scheme, especially for a large number of PUs and a small number of SUs. It is also shown that the number of eavesdroppers has negligible impact on the performance improvement of the proposed algorithm compared to the existing scheme. In addition, it is shown that increasing the number of eavesdroppers has insignificant impact on the SU performance if the number of eavesdroppers is already large.},
keywords={},
doi={10.1587/transfun.E100.A.2061},
ISSN={1745-1337},
month={September},}

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TY - JOUR
TI - Joint User and Power Allocation in Underlay Cognitive Radio Networks with Multiple Primary Users' Security Constraints
T2 - IEICE TRANSACTIONS on Fundamentals
SP - 2061
EP - 2064
AU - Ding XU
AU - Qun LI
PY - 2017
DO - 10.1587/transfun.E100.A.2061
JO - IEICE TRANSACTIONS on Fundamentals
SN - 1745-1337
VL - E100-A
IS - 9
JA - IEICE TRANSACTIONS on Fundamentals
Y1 - September 2017
AB - In this letter, we consider a cognitive radio network where multiple secondary users (SUs) share the spectrum bands with multiple primary users (PUs) who are facing security threats from multiple eavesdroppers. By adopting the PU secrecy outage constraint to protect the PUs, we optimize the joint user and power allocation for the SUs to maximize the SU ergodic transmission rate. Simulation results are presented to verify the effectiveness of the proposed algorithm. It is shown that the proposed algorithm outperforms the existing scheme, especially for a large number of PUs and a small number of SUs. It is also shown that the number of eavesdroppers has negligible impact on the performance improvement of the proposed algorithm compared to the existing scheme. In addition, it is shown that increasing the number of eavesdroppers has insignificant impact on the SU performance if the number of eavesdroppers is already large.
ER -