DocumentCode :
1655751
Title :
Cooperative jamming for wireless physical layer security
Author :
Dong, Lun ; Han, Zhu ; Petropulu, Athina P. ; Poor, H. Vincent
Author_Institution :
Electr. & Comput. Eng. Dept., Drexel Univ., Philadelphia, PA, USA
fYear :
2009
Firstpage :
417
Lastpage :
420
Abstract :
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.
Keywords :
jamming; radio networks; telecommunication security; cooperative jamming; eavesdropper; multiple antennas; novel system design; relay node; suboptimal closed-form solutions; system secrecy rate; transmit power constraint; wireless physical layer security; Antenna feeds; Communication system security; Computer security; Jamming; Physical layer; Physics computing; Power system relaying; Relays; Signal design; Wireless networks; cooperation; cooperative jamming; physical layer security; secrecy rate;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Statistical Signal Processing, 2009. SSP '09. IEEE/SP 15th Workshop on
Conference_Location :
Cardiff
Print_ISBN :
978-1-4244-2709-3
Electronic_ISBN :
978-1-4244-2711-6
Type :
conf
DOI :
10.1109/SSP.2009.5278549
Filename :
5278549
Link To Document :
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