TY - JOUR
T1 - On the design of artificial-noise-aided secure multi-antenna transmission in slow fading channels
AU - Zhang, Xi
AU - Zhou, Xiangyun
AU - McKay, Matthew R.
PY - 2013
Y1 - 2013
N2 - In this paper, we investigate the design of artificial-noise-aided secure multi-antenna transmission in slow fading channels. The primary design concerns include the transmit power allocation and the rate parameters of the wiretap code. We consider two scenarios with different complexity levels: 1) the design parameters are chosen to be fixed for all transmissions; and 2) they are adaptively adjusted based on the instantaneous channel feedback from the intended receiver. In both scenarios, we provide explicit design solutions for achieving the maximal throughput subject to a secrecy constraint, given by a maximum allowable secrecy outage probability. We then derive accurate approximations for the maximal throughput in both scenarios in the high signal-to-noise ratio region, and give new insights into the additional power cost for achieving a higher security level while maintaining a specified target throughput. In the end, the throughput gain of adaptive transmission over non-adaptive transmission is also quantified and analyzed.
AB - In this paper, we investigate the design of artificial-noise-aided secure multi-antenna transmission in slow fading channels. The primary design concerns include the transmit power allocation and the rate parameters of the wiretap code. We consider two scenarios with different complexity levels: 1) the design parameters are chosen to be fixed for all transmissions; and 2) they are adaptively adjusted based on the instantaneous channel feedback from the intended receiver. In both scenarios, we provide explicit design solutions for achieving the maximal throughput subject to a secrecy constraint, given by a maximum allowable secrecy outage probability. We then derive accurate approximations for the maximal throughput in both scenarios in the high signal-to-noise ratio region, and give new insights into the additional power cost for achieving a higher security level while maintaining a specified target throughput. In the end, the throughput gain of adaptive transmission over non-adaptive transmission is also quantified and analyzed.
KW - Artificial noise
KW - multi-antenna transmission
KW - physical-layer security
KW - power allocation
KW - secrecy outage probability
KW - throughput optimization
UR - http://www.scopus.com/inward/record.url?scp=84879203277&partnerID=8YFLogxK
U2 - 10.1109/TVT.2013.2238687
DO - 10.1109/TVT.2013.2238687
M3 - Article
SN - 0018-9545
VL - 62
SP - 2170
EP - 2181
JO - IEEE Transactions on Vehicular Technology
JF - IEEE Transactions on Vehicular Technology
IS - 5
M1 - 6408239
ER -