Abstract (EN):
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 Mantenna 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.
Language:
English
Type (Professor's evaluation):
Scientific
Notes:
ISBN-13: 9781424456383; DOI: 10.1109/GLOCOM.2010.5683623. - Main Heading: Antennas; Controlled terms: Degradation, Security of data, Telecommunication; Uncontrolled terms: Closed-form expression, Fading conditions, High SNR, MRC reception, Multiple antenna, Numerical results, Outage probability, Secrecy capacity, Secure communications, Single antenna, Single-antenna receivers, Wireless channel.