This paper exploits physical layer network coding (PNC) and friendly jamming to improve their physical layer security in wireless two-hop cooperative communications, consisting of one source-destination pair with the help of multiple intermediate nodes in the presence of one eavesdropper. By sending a jamming signal carrying a random binary message from the selected jammer and utilizing the PNC at the selected relay node, the system can avoid the disadvantage of the friendly jamming to the source-relay channel and do good to the relay-destination channel, thereby achieving better secrecy rate. Assuming global channel state information available and memoryless adversaries, we seek to minimize the secrecy outage probability with the optimal relay and jammer selection. Numerical simulation results show that our schemes outperform the conventional approaches in wireless cooperative communications.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Combined Physical Network Coding and Friendly Jamming for Secure Wireless Cooperative Communications


    Contributors:
    Li, Dehuai (author) / Yan, Shiwei (author) / Zhang, Xiguang (author) / Shang, Yong (author)


    Publication date :

    2016-09-01


    Size :

    352937 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English