Title :
On Wireless Channels with M-Antenna Eavesdroppers: Characterization of the Outage Probability and Outage Secrecy Capacity
Author :
Prabhu, Vinay Uday ; Rodrigues, Miguel R D
Author_Institution :
Dept. of Comput. Sci., Univ. of Porto, Porto, Portugal
Abstract :
In this paper, we consider secure communications between a single antenna transmitter and a single antenna receiver in the presence of a multiple antenna eavesdropper employing MRC or SDC reception. We show that an M-antenna eavesdropper performing SDC reception has precisely the same degrading effect on secrecy as M single antenna eavesdroppers under independent fading conditions. We also show that an M-antenna eavesdropper performing MRC reception causes greater secrecy degradation than an M-antenna eavesdropper performing SDC reception or M single antenna eavesdroppers. We also derive closed-form expressions for the asymptotic high SNR outage secrecy capacity for both the MRC and the SDC eavesdropper cases. Various numerical results are presented that corroborate the analysis.
Keywords :
antenna arrays; diversity reception; fading channels; radio receivers; radio transmitters; telecommunication network reliability; MRC reception; SDC reception; fading condition; multiple antenna eavesdropper; outage probability; outage secrecy capacity; secure communications; single antenna receiver; single antenna transmitter; wireless channels; Capacity planning; Fading; Receiving antennas; Signal to noise ratio; Transmitters;
Conference_Titel :
Global Telecommunications Conference (GLOBECOM 2010), 2010 IEEE
Conference_Location :
Miami, FL
Print_ISBN :
978-1-4244-5636-9
Electronic_ISBN :
1930-529X
DOI :
10.1109/GLOCOM.2010.5683623
