Abstract
Secure transmission of information over wireless channels in the presence of an eavesdropper has attracted much attention recently. Previous work assumes that a transmitter has perfect knowledge of the channel side information (CSI) of the legitimate channel and the eavesdropper's channel. To loosen this strong requirement, this paper considers the case where a transmitter has perfect knowledge of the CSI of the legitimate channel and only the average channel gain of the eavesdropper's channel. In this case, some information may be leaked to the eavesdropper because the eavesdropper's channel may have a higher gain than the legitimate channel. Hence, we propose, for the first time, to study leakage-probability-constrained secrecy capacity of a fading channel, that is, secrecy capacity under the constraint on leakage probability. We also propose an optimal power allocation strategy that maximizes leakage-probability-constrained secrecy capacity under average power constraint. Moreover, we study the impact of the bias of the average gain estimate of the eavesdropper's channel on leakage-probability-constrained secrecy capacity.
| Original language | English |
|---|---|
| Pages (from-to) | 583-593 |
| Number of pages | 11 |
| Journal | Security and Communication Networks |
| Volume | 5 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - 2012 |
| Externally published | Yes |
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Keywords
- Fading
- Leakage probability
- Nakagami-m fading
- Rayleigh fading
- Secrecy capacity
ASJC Scopus subject areas
- Computer Networks and Communications
- Information Systems
Cite this
Leakage-probability-constrained secrecy capacity of a fading channel. / Chen, Zhi; Wu, Dapeng; Fan, Pingyi; Letaief, Khaled.
In: Security and Communication Networks, Vol. 5, No. 6, 2012, p. 583-593.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Leakage-probability-constrained secrecy capacity of a fading channel
AU - Chen, Zhi
AU - Wu, Dapeng
AU - Fan, Pingyi
AU - Letaief, Khaled
PY - 2012
Y1 - 2012
N2 - Secure transmission of information over wireless channels in the presence of an eavesdropper has attracted much attention recently. Previous work assumes that a transmitter has perfect knowledge of the channel side information (CSI) of the legitimate channel and the eavesdropper's channel. To loosen this strong requirement, this paper considers the case where a transmitter has perfect knowledge of the CSI of the legitimate channel and only the average channel gain of the eavesdropper's channel. In this case, some information may be leaked to the eavesdropper because the eavesdropper's channel may have a higher gain than the legitimate channel. Hence, we propose, for the first time, to study leakage-probability-constrained secrecy capacity of a fading channel, that is, secrecy capacity under the constraint on leakage probability. We also propose an optimal power allocation strategy that maximizes leakage-probability-constrained secrecy capacity under average power constraint. Moreover, we study the impact of the bias of the average gain estimate of the eavesdropper's channel on leakage-probability-constrained secrecy capacity.
AB - Secure transmission of information over wireless channels in the presence of an eavesdropper has attracted much attention recently. Previous work assumes that a transmitter has perfect knowledge of the channel side information (CSI) of the legitimate channel and the eavesdropper's channel. To loosen this strong requirement, this paper considers the case where a transmitter has perfect knowledge of the CSI of the legitimate channel and only the average channel gain of the eavesdropper's channel. In this case, some information may be leaked to the eavesdropper because the eavesdropper's channel may have a higher gain than the legitimate channel. Hence, we propose, for the first time, to study leakage-probability-constrained secrecy capacity of a fading channel, that is, secrecy capacity under the constraint on leakage probability. We also propose an optimal power allocation strategy that maximizes leakage-probability-constrained secrecy capacity under average power constraint. Moreover, we study the impact of the bias of the average gain estimate of the eavesdropper's channel on leakage-probability-constrained secrecy capacity.
KW - Fading
KW - Leakage probability
KW - Nakagami-m fading
KW - Rayleigh fading
KW - Secrecy capacity
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UR - http://www.scopus.com/inward/citedby.url?scp=84862110506&partnerID=8YFLogxK
U2 - 10.1002/sec.353
DO - 10.1002/sec.353
M3 - Article
VL - 5
SP - 583
EP - 593
JO - Security and Communication Networks
JF - Security and Communication Networks
SN - 1939-0122
IS - 6
ER -