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Cooperative Relaying Protocol for Improving Physical Layer Security in Wireless Decode-and-Forward Relaying Networks

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Abstract

In this paper, we consider cooperative relaying protocols for enhancing wireless physical layer security. For time-division multiple-access based cooperative protocols, we analyze achievable secrecy rates with total and individual relay power constraints and design relay beamforming weights to improve the secrecy rate, assuming that multiple cooperative relays operate in decode-and-forward mode. Numerical results are presented to compare the secrecy rates of the cooperative protocols in various secure communication environments.

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Acknowledgments

This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT & Future Planning (NRF-2013R1A1A1A05004401).

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  1. Department of Electronic Engineering, Gachon University, Seongnam, Gyeonggi, Korea

    Jong-Ho Lee

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  1. Jong-Ho Lee
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Correspondence to Jong-Ho Lee.

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Lee, JH. Cooperative Relaying Protocol for Improving Physical Layer Security in Wireless Decode-and-Forward Relaying Networks. Wireless Pers Commun 83, 3033–3044 (2015). https://doi.org/10.1007/s11277-015-2580-2

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  • DOI: https://doi.org/10.1007/s11277-015-2580-2

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