Secrecy Outage Probability of Optimal Relay Selection for Secure AnF Cooperative Networks

2015 ◽  
Vol 19 (12) ◽  
pp. 2086-2089 ◽  
Author(s):  
Binh V. Nguyen ◽  
Kiseon Kim
Keyword(s):  
Outage Probability ◽  
Relay Selection ◽  
Cooperative Networks ◽  
Secrecy Outage Probability ◽  
Selection For ◽  
Secrecy Outage

scholarly journals Partial Relay Selection for Secure Cooperative NOMA Networks

2021 ◽  
Author(s):  
Wided Hadj Alouane
Keyword(s):  
Fading Channels ◽  
Relay Selection ◽  
Signal To Noise Ratio ◽  
Secrecy Outage Probability ◽  
Amplify And Forward ◽  
Decode And Forward ◽  
Partial Relay Selection ◽  
Asymptotic Expressions ◽  
Selection For ◽  
Secrecy Outage

Abstract In this paper, we investigate physical layer security of multi-relay non-orthogonal multiple access (NOMA) networks with partial relay selection considering decode-and-forward (DF) and amplify-and-forward (AF) protocols. We propose a partial relay scheme aiming to select the best relay based on the highest signal-to-noise-ratio (SNR) of the first link. We derive new exact and asymptotic expressions for strictly positive secrecy capacity (SPSC) and secrecy outage probability (SOP) considering Rayleigh fading channels. Numerical results demonstrate that AF and DF provide almost a similar secrecy performance. Moreover, they prove that partial relay selection improves SPSC and reduces SOP when the relay-cluster is closer to the legitimate receiver.

scholarly journals Secrecy Outage Probability of Relay Selection Based Cooperative NOMA for IoT Networks

IEEE Access ◽  
2021 ◽  
Vol 9 ◽  
pp. 1655-1665
Author(s):  
Hui Li ◽  
Yaping Chen ◽  
Mingfu Zhu ◽  
Jiangfeng Sun ◽  
Dinh-Thuan Do ◽  
...  
Keyword(s):  
Outage Probability ◽  
Relay Selection ◽  
Secrecy Outage Probability ◽  
Secrecy Outage

scholarly journals Performance Analysis of Secrecy Outage Probability for AF-Based Partial Relay Selection with Outdated Channel Estimates

2017 ◽  
Vol 2017 ◽  
pp. 1-8
Author(s):  
Kyu-Sung Hwang
Keyword(s):  
Outage Probability ◽  
Relay Selection ◽  
Information Source ◽  
Integral Form ◽  
Secrecy Outage Probability ◽  
Amplify And Forward ◽  
Selection Scheme ◽  
Partial Relay Selection ◽  
Channel Information ◽  
Secrecy Outage

We study the secrecy outage probability of the amplify-and-forward (AF) relaying protocol, which consists of one source, one destination, multiple relays, and multiple eavesdroppers. In this system, the aim is to transmit the confidential messages from a source to a destination via the selected relay in presence of eavesdroppers. Moreover, partial relay selection scheme is utilized for relay selection based on outdated channel state information where only neighboring channel information (source-relays) is available and passive eavesdroppers are considered where a transmitter does not have any knowledge of eavesdroppers’ channels. Specifically, we offer the exact secrecy outage probability of the proposed system in a one-integral form as well as providing the asymptotic secrecy outage probability in a closed-form. Numerical examples are given to verify our provided analytical results for different system conditions.

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