Power Allocation in UAV-Enabled Relaying Systems for Secure Communications
Unmanned aerial vehicle (UAV)-enabled mobile relaying technique is a promising approach in providing high data rate transmission. Limitations of the UAV's hardware and the line-of-sight link of the air-to-ground channel make UAV ground communication more vulnerable to wiretap and spoof threats....
Main Authors: | , , , |
---|---|
Format: | Article |
Language: | English |
Published: |
IEEE
2019-01-01
|
Series: | IEEE Access |
Subjects: | |
Online Access: | https://ieeexplore.ieee.org/document/8786154/ |
id |
doaj-ec10bb5cded14b06a6549d7a0e37bcab |
---|---|
record_format |
Article |
spelling |
doaj-ec10bb5cded14b06a6549d7a0e37bcab2021-04-05T17:20:50ZengIEEEIEEE Access2169-35362019-01-01711900911901710.1109/ACCESS.2019.29327808786154Power Allocation in UAV-Enabled Relaying Systems for Secure CommunicationsGuen Sun0Na Li1https://orcid.org/0000-0001-7966-3568Xiaofeng Tao2https://orcid.org/0000-0001-9518-1622Huici Wu3National Engineering Laboratory for Mobile Network Technologies, Beijing University of Posts and Telecommunications, Beijing, ChinaNational Engineering Laboratory for Mobile Network Technologies, Beijing University of Posts and Telecommunications, Beijing, ChinaNational Engineering Laboratory for Mobile Network Technologies, Beijing University of Posts and Telecommunications, Beijing, ChinaNational Engineering Laboratory for Mobile Network Technologies, Beijing University of Posts and Telecommunications, Beijing, ChinaUnmanned aerial vehicle (UAV)-enabled mobile relaying technique is a promising approach in providing high data rate transmission. Limitations of the UAV's hardware and the line-of-sight link of the air-to-ground channel make UAV ground communication more vulnerable to wiretap and spoof threats. This paper tackles the secure transmission problem with physical layer security (PLS) technologies. A four-node wiretap channel with UAV-enabled relay is considered and eavesdroppers' location information is partially known that they are in a certain area with variable densities. We put forward the secrecy rate maximization problem aiming at optimizing the source/relay transmission power. The objective function and constraints are proved to be non-convex and we convert the non-convex problem to a convex one by introducing the difference-of-concave (DC) programming and slack variables. For a special case, a closed-form solution is obtained which greatly reduces the complexity of the algorithm. The simulation result shows that with the proposed algorithm, the system with partial eavesdroppers' location information can achieve a pretty good secrecy performance close to that in the case with perfect location information.https://ieeexplore.ieee.org/document/8786154/UAV-enabled mobile relayingphysical layer securitypower allocationimperfect location information |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Guen Sun Na Li Xiaofeng Tao Huici Wu |
spellingShingle |
Guen Sun Na Li Xiaofeng Tao Huici Wu Power Allocation in UAV-Enabled Relaying Systems for Secure Communications IEEE Access UAV-enabled mobile relaying physical layer security power allocation imperfect location information |
author_facet |
Guen Sun Na Li Xiaofeng Tao Huici Wu |
author_sort |
Guen Sun |
title |
Power Allocation in UAV-Enabled Relaying Systems for Secure Communications |
title_short |
Power Allocation in UAV-Enabled Relaying Systems for Secure Communications |
title_full |
Power Allocation in UAV-Enabled Relaying Systems for Secure Communications |
title_fullStr |
Power Allocation in UAV-Enabled Relaying Systems for Secure Communications |
title_full_unstemmed |
Power Allocation in UAV-Enabled Relaying Systems for Secure Communications |
title_sort |
power allocation in uav-enabled relaying systems for secure communications |
publisher |
IEEE |
series |
IEEE Access |
issn |
2169-3536 |
publishDate |
2019-01-01 |
description |
Unmanned aerial vehicle (UAV)-enabled mobile relaying technique is a promising approach in providing high data rate transmission. Limitations of the UAV's hardware and the line-of-sight link of the air-to-ground channel make UAV ground communication more vulnerable to wiretap and spoof threats. This paper tackles the secure transmission problem with physical layer security (PLS) technologies. A four-node wiretap channel with UAV-enabled relay is considered and eavesdroppers' location information is partially known that they are in a certain area with variable densities. We put forward the secrecy rate maximization problem aiming at optimizing the source/relay transmission power. The objective function and constraints are proved to be non-convex and we convert the non-convex problem to a convex one by introducing the difference-of-concave (DC) programming and slack variables. For a special case, a closed-form solution is obtained which greatly reduces the complexity of the algorithm. The simulation result shows that with the proposed algorithm, the system with partial eavesdroppers' location information can achieve a pretty good secrecy performance close to that in the case with perfect location information. |
topic |
UAV-enabled mobile relaying physical layer security power allocation imperfect location information |
url |
https://ieeexplore.ieee.org/document/8786154/ |
work_keys_str_mv |
AT guensun powerallocationinuavenabledrelayingsystemsforsecurecommunications AT nali powerallocationinuavenabledrelayingsystemsforsecurecommunications AT xiaofengtao powerallocationinuavenabledrelayingsystemsforsecurecommunications AT huiciwu powerallocationinuavenabledrelayingsystemsforsecurecommunications |
_version_ |
1721539856532766720 |