TY - GEN
T1 - Cooperative jamming for wireless physical layer security
AU - Dong, Lun
AU - Han, Zhu
AU - Petropulu, Athina P.
AU - Poor, H. Vincent
PY - 2009
Y1 - 2009
N2 - Cooperative jamming is an approach that has been recently proposed for improving physical layer based security for wireless networks in the presence of an eavesdropper. While the source transmits its message to its destination, a relay node transmits a jamming signal to create interference at the eavesdropper. In this paper, a scenario in which the relay is equipped with multiple antennas is considered. A novel system design is proposed for determining the antenna weights and transmit power of source and relay, so that the system secrecy rate is maximized subject to a total transmit power constraint, or, the transmit power is minimized subject to a secrecy rate constraint. Since the optimal solutions to these problems are difficult to obtain, suboptimal closed-form solutions are proposed that introduce an additional constraint, i.e., the complete nulling of jamming signal at the destination.
AB - Cooperative jamming is an approach that has been recently proposed for improving physical layer based security for wireless networks in the presence of an eavesdropper. While the source transmits its message to its destination, a relay node transmits a jamming signal to create interference at the eavesdropper. In this paper, a scenario in which the relay is equipped with multiple antennas is considered. A novel system design is proposed for determining the antenna weights and transmit power of source and relay, so that the system secrecy rate is maximized subject to a total transmit power constraint, or, the transmit power is minimized subject to a secrecy rate constraint. Since the optimal solutions to these problems are difficult to obtain, suboptimal closed-form solutions are proposed that introduce an additional constraint, i.e., the complete nulling of jamming signal at the destination.
KW - Cooperation
KW - Cooperative jamming
KW - Physical layer security
KW - Secrecy rate
UR - http://www.scopus.com/inward/record.url?scp=72349099904&partnerID=8YFLogxK
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U2 - 10.1109/SSP.2009.5278549
DO - 10.1109/SSP.2009.5278549
M3 - Conference contribution
AN - SCOPUS:72349099904
SN - 9781424427109
T3 - IEEE Workshop on Statistical Signal Processing Proceedings
SP - 417
EP - 420
BT - 2009 IEEE/SP 15th Workshop on Statistical Signal Processing, SSP '09
T2 - 2009 IEEE/SP 15th Workshop on Statistical Signal Processing, SSP '09
Y2 - 31 August 2009 through 3 September 2009
ER -