Systems with Amplify-and-Forw ard

each relay node shares much less CSI information with each other, compared with the exhaustive search scheme. Numerical and simulation results demonstrate that in the AF protocol system, the iterative algorithm can help achieve con­ siderable secrecy capacity with a little CSI sharing overhead.

[1]  Wenbo Wang,et al.  Secrecy Capacity Enhancement With Distributed Precoding in Multirelay Wiretap Systems , 2013, IEEE Transactions on Information Forensics and Security.

[2]  M. Debbah,et al.  Wireless physical-layer security: The challenges ahead , 2009, 2009 International Conference on Advanced Technologies for Communications.

[3]  Zhu Han,et al.  Improving Wireless Physical Layer Security via Cooperating Relays , 2010, IEEE Transactions on Signal Processing.

[4]  Matthieu R. Bloch,et al.  Wireless Information-Theoretic Security , 2008, IEEE Transactions on Information Theory.

[5]  W.A. Arbaugh.  Wireless Security Is Different , 2003, Computer.

[6]  Jing Wang,et al.  Cooperative jamming and power allocation in three-phase two-way relaying wiretap systems , 2013, 2013 IEEE Wireless Communications and Networking Conference (WCNC).

[7]  Hesham El Gamal,et al.  The Relay–Eavesdropper Channel: Cooperation for Secrecy , 2006, IEEE Transactions on Information Theory.

[8]  John S. Thompson,et al.  Relay selection for secure cooperative networks with jamming , 2009, IEEE Transactions on Wireless Communications.

[9]  Zhu Han,et al.  Amplify-and-forward based cooperation for secure wireless communications , 2009, 2009 IEEE International Conference on Acoustics, Speech and Signal Processing.