Proactive Eavesdropping via Covert Pilot Spoofing Attack in Multi-Antenna Systems

Proactive eavesdropping is an effective method for government to monitor suspicious users who are deemed to misuse communication systems for illegal activities. In this paper, considering that a legitimate full-duplex (FD) eavesdropper tries to monitor a dubious multi-antenna system, we propose a co...

Full description

Bibliographic Details
Main Authors: Xingbo Lu, Weiwei Yang, Yueming Cai, Xinrong Guan
Format: Article
Language:English
Published: IEEE 2019-01-01
Series:IEEE Access
Subjects:
Online Access:https://ieeexplore.ieee.org/document/8873602/
id doaj-539222a42f2b41d2b402bd33cd2ec518
record_format Article
spelling doaj-539222a42f2b41d2b402bd33cd2ec5182021-03-29T23:18:07ZengIEEEIEEE Access2169-35362019-01-01715129515130610.1109/ACCESS.2019.29480788873602Proactive Eavesdropping via Covert Pilot Spoofing Attack in Multi-Antenna SystemsXingbo Lu0https://orcid.org/0000-0003-2699-9943Weiwei Yang1https://orcid.org/0000-0002-0220-4088Yueming Cai2Xinrong Guan3Institute of Communications Engineering, Army Engineering University of PLA, Nanjing, ChinaInstitute of Communications Engineering, Army Engineering University of PLA, Nanjing, ChinaInstitute of Communications Engineering, Army Engineering University of PLA, Nanjing, ChinaInstitute of Communications Engineering, Army Engineering University of PLA, Nanjing, ChinaProactive eavesdropping is an effective method for government to monitor suspicious users who are deemed to misuse communication systems for illegal activities. In this paper, considering that a legitimate full-duplex (FD) eavesdropper tries to monitor a dubious multi-antenna system, we propose a covert pilot spoofing attack (PSA) scheme to enhance the legitimate eavesdropping performance by taking the channel training phase into consideration. For the proposed covert PSA scheme, the total error detection probability and optimal detection threshold of suspicious source are derived as the worst case for the considered monitoring system. Given the optimal detection threshold, the closed-form expressions of effective eavesdropping rate are also derived based on the results of detection at suspicious source. Furthermore, an optimal power allocation algorithm to maximize the effective eavesdropping rate is proposed under the covert PSA and transmission power constraints. Simulation results illustrate that the adversary's uncertain about channel state information (CSI) before channel estimation process, can be exploited by legitimate eavesdropper to cover the PSA without being detected. Therefore, the proposed covert PSA scheme can achieve a better performance with respect to effective eavesdropping rate and effectively combat with a suspicious multi-antenna system.https://ieeexplore.ieee.org/document/8873602/Proactive eavesdroppingcovert communicationpilot spoofing attackchannel uncertainty
collection DOAJ
language English
format Article
sources DOAJ
author Xingbo Lu
Weiwei Yang
Yueming Cai
Xinrong Guan
spellingShingle Xingbo Lu
Weiwei Yang
Yueming Cai
Xinrong Guan
Proactive Eavesdropping via Covert Pilot Spoofing Attack in Multi-Antenna Systems
IEEE Access
Proactive eavesdropping
covert communication
pilot spoofing attack
channel uncertainty
author_facet Xingbo Lu
Weiwei Yang
Yueming Cai
Xinrong Guan
author_sort Xingbo Lu
title Proactive Eavesdropping via Covert Pilot Spoofing Attack in Multi-Antenna Systems
title_short Proactive Eavesdropping via Covert Pilot Spoofing Attack in Multi-Antenna Systems
title_full Proactive Eavesdropping via Covert Pilot Spoofing Attack in Multi-Antenna Systems
title_fullStr Proactive Eavesdropping via Covert Pilot Spoofing Attack in Multi-Antenna Systems
title_full_unstemmed Proactive Eavesdropping via Covert Pilot Spoofing Attack in Multi-Antenna Systems
title_sort proactive eavesdropping via covert pilot spoofing attack in multi-antenna systems
publisher IEEE
series IEEE Access
issn 2169-3536
publishDate 2019-01-01
description Proactive eavesdropping is an effective method for government to monitor suspicious users who are deemed to misuse communication systems for illegal activities. In this paper, considering that a legitimate full-duplex (FD) eavesdropper tries to monitor a dubious multi-antenna system, we propose a covert pilot spoofing attack (PSA) scheme to enhance the legitimate eavesdropping performance by taking the channel training phase into consideration. For the proposed covert PSA scheme, the total error detection probability and optimal detection threshold of suspicious source are derived as the worst case for the considered monitoring system. Given the optimal detection threshold, the closed-form expressions of effective eavesdropping rate are also derived based on the results of detection at suspicious source. Furthermore, an optimal power allocation algorithm to maximize the effective eavesdropping rate is proposed under the covert PSA and transmission power constraints. Simulation results illustrate that the adversary's uncertain about channel state information (CSI) before channel estimation process, can be exploited by legitimate eavesdropper to cover the PSA without being detected. Therefore, the proposed covert PSA scheme can achieve a better performance with respect to effective eavesdropping rate and effectively combat with a suspicious multi-antenna system.
topic Proactive eavesdropping
covert communication
pilot spoofing attack
channel uncertainty
url https://ieeexplore.ieee.org/document/8873602/
work_keys_str_mv AT xingbolu proactiveeavesdroppingviacovertpilotspoofingattackinmultiantennasystems
AT weiweiyang proactiveeavesdroppingviacovertpilotspoofingattackinmultiantennasystems
AT yuemingcai proactiveeavesdroppingviacovertpilotspoofingattackinmultiantennasystems
AT xinrongguan proactiveeavesdroppingviacovertpilotspoofingattackinmultiantennasystems
_version_ 1724189784213028864