Please use this identifier to cite or link to this item: http://repository.vnu.edu.vn/handle/VNU_123/26647
Title: Relay Selection Schemes for Dual-Hop Networks under Security Constraints with Multiple Eavesdroppers
Authors: Vo, Nguyen Quoc Bao
Nguyen, Linh Trung
Debbah, M´erouane
Keywords: Rayleigh fading;Secrecy outage probability;Achievable secrecy rate;Security constraints
Issue Date: 2013
Publisher: H. : ĐHQGHN
Abstract: In this paper, we study opportunistic relay selection in cooperative networks with secrecy constraints, where a num-ber of eavesdropper nodes may overhear the source message. To deal with this problem, we consider three opportunistic relay selection schemes. The first scheme tries to reduce the overheard information at the eavesdroppers by choosing the relay having the lowest instantaneous signal-to-noise ratio (SNR) to them. The second scheme is conventional selection relaying that seeks the relay having the highest SNR to the destination. In the third scheme, we consider the ratio between the SNR of a relay and the maximum among the corresponding SNRs to the eavesdroppers, and then select the optimal one to forward the signal to the destination. The system performance in terms of probability of non-zero achievable secrecy rate, secrecy outage probability and achievable secrecy rate of the three schemes are analyzed and confirmed by Monte Carlo simulations
Description: IEEE Transactions on Wireless Communications 12(12),6661318, pp. 6076-6085
URI: http://repository.vnu.edu.vn/handle/VNU_123/26647
Appears in Collections:Bài báo của ĐHQGHN trong Scopus

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