Secrecy Performance Analysis of Hybrid AF-DF Relaying Under Multi Hop Environment
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In this work, a three-hop wireless relaying model comprising of a single source and destination node, along with two relay nodes and an eavesdropper is considered. We made a detailed performance analysis comparison between the multi-hop network and the conventional single-hop model by considering different parameters. Due to the broadcast behaviour of a wireless communication network the propagated message from the source is captured by both intended and an unintended receiver. This will lead to severe security breaches in a wireless medium, so providing fully secure communication is a critical issue. Physical layer security developed as a new archetype to afford security to a wireless communication network. Multi-hop networks are favourite over single-hop networks for better coverage extension and lower interference levels. To use the benefits of both, amplify and forward and decode and forward protocol collectively, a new scheme known as hybrid amplify decode and forward relaying based on signal to noise ratio is presented. The scheme is proposed for multi hop environment with secrecy capacity as a performance metric. Secrecy capacity of proposed scheme outperforms both AF and DF for different distance parameters and path loss exponent under multi-hop environment.
KeywordsAmplify and forward Hybrid amplify decode and forward (HADF) Single and multi-hop environment Secrecy capacity Decode and forward Physical layer security (PLS)
- 5.Sinha, R., & Jindal, P. (2017). A study of physical layer security with energy harvesting in single hop relaying environment. In IEEE conference on signal processing and integrated networks. Google Scholar
- 7.Son, P. N., & Kong, H. Y. (2015). Cooperative communication with energy harvesting relays under physical layer security. IET Journals,9, 17.Google Scholar
- 13.Gawtham, K. D., & Jindal, P. (2016). Analysis of amplify and forward technique to improve secrecy rate in multi-hop relaying system. In Proceedings of IEEE RTEICT (pp. 62–64).Google Scholar
- 14.Pavan Kumar, M. S., Bhattacharjee, R., Herhold, P., Fettweis, G. (2005). Cooperative muti-hop relaying over fading channel. In International conference on signal processing 8 communications (SPCOM). https://doi.org/10.1109/spcom.2004.1458395.
- 16.Lun, D. et al. (2009). Amplify-and-forward based cooperation for secure wireless communications. In IEEE international conference on acoustics, speech and signal processing, ICASSP 2009.Google Scholar
- 17.Thatha, D., Gurrala, K. K., & Das, S. (2015). Performance analysis of hybrid decode-amplify-forward (HDAF) relaying for improving security in cooperative wireless network. In: 2015 global conference on communication technologies (GCCT) (pp. 682–687).Google Scholar
- 19.Duong, T. Q., & Zepernick, H. J. (2009). Hybrid decode-amplify-forward cooperative communications with multiple relays. In Proceedings of IEEE wireless communications and networking conference Budapest (pp. 1–6).Google Scholar
- 20.Chen, H., Liu, J., Zhai, C., & Zheng, L. (2010). Performance analysis of SNR based hybrid decode amplify-forward cooperative diversity networks over Rayleigh fading channels. In Proceedings of wireless communications and networking conference (WCNC) (pp. 1–6).Google Scholar
- 22.Rasethuntsa, T. R., Kumar, S., & Kaur, M. (2019). A comprehensive performance evaluation of a DF-based multi-hop system over α-κ-µ and α-κ-µ-extreme fading channels.Google Scholar
- 27.Thatha, D., Gurrala, K. K., & Das, S. (2015). Performance analysis of hybrid decode-amplify forward (HDAF) relaying for improving security in cooperative wireless network. In Proceedings of 2015 global conference on communication technologies (GCCT 2015. Google Scholar