Outage performance of secure multicasting in the presence of multiple eavesdroppers

Abstract

Abstract-Recently, there has been a growing interest in applying multiple antennas to achieve information-theoretic security in wireless communication networks. In this paper, we consider the transmission of common confidential data from a singleantenna transmitter to multiple multi-antenna receivers in the presence of multiple multi-antenna eavesdroppers. Both the receivers and eavesdroppers employ maximal-ratio combining (MRC) to combine the signals received at multiple antennas. For the considered system, we derive its connection outage probability and secrecy outage probability to characterize the reliability level and the security level, respectively. Numerical results are also provided to analyze the tradeoff among the reliability and security performances and the number of antennas (or nodes) of either receivers or eavesdroppers.Index Terms-Physical layer security, secrecy outage probability, multiple antennas, multicast

Multiple Eavesdropper-Based Physical Layer Security in SIMO System With Antenna Correlation

“…Rayleigh fading channel [22]. Previous system models either considered the existence of a single eavesdropper [20] or ignored the antenna correlation [5] in multi-antenna systems. To the authors' knowledge, the effect of the correlation between antennas in the multi-eavesdropper SIMO system on the secrecy performance has not been considered.…”

“…Substituting (5) and (11) into (13) and making some basic mathematical operations, the new closed-form expression of the SOP is formulated as (14)…”

“…The author in [4] studied the physical layer security based on multicasting scheme with multiple receivers and eavesdroppers both having multiple antennas, and indicated that increasing eavesdroppers and antennas own by each of them would decrease the transmission security. Based on these explorations, [5] probed the secrecy outage probability (SOP) of information transmission in the eavesdropping system especially. The author in [6] indicated that SOP increases with the number of receivers in a wireless multicasting system, where there is a single eavesdropper equipped with a single antenna.…”

“…In [7], the author stated that secrecy capacity and SOP can be improved by optimizing the transmission power and diversity order in SIMO wiretap channels with maximal ratio combining (MRC) scheme in Rayleigh fading environment. The studies in [4][5][6][7] focused on the research of SIMO wiretap system. There are also some work involved MIMO eavesdropping channels.…”

Secrecy Performances of Multicast Underlay Cognitive Protocols with Partial Relay Selection and without Eavesdropper’s Information

“…Similar to [8]- [9], the authors in [12] only evaluated the SOP at the cooperative phase with different combining techniques at the destination. Published works [13]- [14] introduced theoretical models for secured multicasting systems. In particular, the multi-user-based cooperative protocol was investigated in [13], while [14] considered the secured communication between a single-antenna transmitter and multiple multi-antenna receivers, in presence of multiple multi-antenna eavesdroppers.…”