Cooperative Interference and Power Allocation in a Bidirectional Untrusted Relay Network With Channel Estimation Errors
The secure communication of a two-way untrusted amplify-and-forward relay network under the imperfect channel state information is investigated. To improve the secrecy of the relay wiretap system, artificial noise is introduced into each source signal. The total and the individual power constraint c...
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doaj-18b64a4b41144cf0aa34deeb453cbbfd2021-03-29T20:58:49ZengIEEEIEEE Access2169-35362018-01-016509505095810.1109/ACCESS.2018.28685008454432Cooperative Interference and Power Allocation in a Bidirectional Untrusted Relay Network With Channel Estimation ErrorsLihua Gong0Xiaoxiu Ding1Qibiao Zhu2Nanrun Zhou3https://orcid.org/0000-0002-5080-2189Department of Electronic Information Engineering, Nanchang University, Nanchang, ChinaDepartment of Electronic Information Engineering, Nanchang University, Nanchang, ChinaDepartment of Electronic Information Engineering, Nanchang University, Nanchang, ChinaDepartment of Electronic Information Engineering, Nanchang University, Nanchang, ChinaThe secure communication of a two-way untrusted amplify-and-forward relay network under the imperfect channel state information is investigated. To improve the secrecy of the relay wiretap system, artificial noise is introduced into each source signal. The total and the individual power constraint conditions are considered. To maximize the attainable secrecy rate, an iterative power allocation algorithm is designed under the total power constraint. As a more practical system design, a suboptimal power allocation scheme is proposed. For the sake of comparison, the security performances of the noncooperative interference strategy and the one-way cooperative interference strategy are also investigated. Simulation results demonstrate that the proposed bidirectional cooperative interference schemes perform better in the secrecy rate of communication system.https://ieeexplore.ieee.org/document/8454432/Untrusted relay networkimperfect channel state informationphysical layer securitycooperative interferencepower allocation |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Lihua Gong Xiaoxiu Ding Qibiao Zhu Nanrun Zhou |
spellingShingle |
Lihua Gong Xiaoxiu Ding Qibiao Zhu Nanrun Zhou Cooperative Interference and Power Allocation in a Bidirectional Untrusted Relay Network With Channel Estimation Errors IEEE Access Untrusted relay network imperfect channel state information physical layer security cooperative interference power allocation |
author_facet |
Lihua Gong Xiaoxiu Ding Qibiao Zhu Nanrun Zhou |
author_sort |
Lihua Gong |
title |
Cooperative Interference and Power Allocation in a Bidirectional Untrusted Relay Network With Channel Estimation Errors |
title_short |
Cooperative Interference and Power Allocation in a Bidirectional Untrusted Relay Network With Channel Estimation Errors |
title_full |
Cooperative Interference and Power Allocation in a Bidirectional Untrusted Relay Network With Channel Estimation Errors |
title_fullStr |
Cooperative Interference and Power Allocation in a Bidirectional Untrusted Relay Network With Channel Estimation Errors |
title_full_unstemmed |
Cooperative Interference and Power Allocation in a Bidirectional Untrusted Relay Network With Channel Estimation Errors |
title_sort |
cooperative interference and power allocation in a bidirectional untrusted relay network with channel estimation errors |
publisher |
IEEE |
series |
IEEE Access |
issn |
2169-3536 |
publishDate |
2018-01-01 |
description |
The secure communication of a two-way untrusted amplify-and-forward relay network under the imperfect channel state information is investigated. To improve the secrecy of the relay wiretap system, artificial noise is introduced into each source signal. The total and the individual power constraint conditions are considered. To maximize the attainable secrecy rate, an iterative power allocation algorithm is designed under the total power constraint. As a more practical system design, a suboptimal power allocation scheme is proposed. For the sake of comparison, the security performances of the noncooperative interference strategy and the one-way cooperative interference strategy are also investigated. Simulation results demonstrate that the proposed bidirectional cooperative interference schemes perform better in the secrecy rate of communication system. |
topic |
Untrusted relay network imperfect channel state information physical layer security cooperative interference power allocation |
url |
https://ieeexplore.ieee.org/document/8454432/ |
work_keys_str_mv |
AT lihuagong cooperativeinterferenceandpowerallocationinabidirectionaluntrustedrelaynetworkwithchannelestimationerrors AT xiaoxiuding cooperativeinterferenceandpowerallocationinabidirectionaluntrustedrelaynetworkwithchannelestimationerrors AT qibiaozhu cooperativeinterferenceandpowerallocationinabidirectionaluntrustedrelaynetworkwithchannelestimationerrors AT nanrunzhou cooperativeinterferenceandpowerallocationinabidirectionaluntrustedrelaynetworkwithchannelestimationerrors |
_version_ |
1724193696524533760 |