Cooperative jamming and power allocation in three-phase two-way relaying wiretap systems

Long, Hang, Xiang, Wei, Wang, Jing, Zhang, Yueying, and Wang, Wenbo (2013) Cooperative jamming and power allocation in three-phase two-way relaying wiretap systems. In: Proceedings of the IEEE Wireless Communications and Networking Conference. pp. 4175-4179. From: WCNC 2013: IEEE Wireless Communications and Networking Conference, 7-10 April 2013, Shanghai, China.

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The security of the three-phase two-way relaying system with an eavesdropper is investigated in this paper. A cooperative jamming and power allocation scheme is proposed to enhance the system secrecy capacity. When a source node transmits user signals to the relay node, the other source node interferes the relay node with pre-defined jamming signals simultaneously. Optimum power allocation between the user and jamming signals at each source node is analyzed. Our analytical results suggest that the proposed cooperative jamming scheme improves on the system secrecy capacity, especially when the channel gains of the two source-relay links are of large difference. Simulation results in close agreement with analytical results clearly demonstrate the advantage of the proposed cooperative jamming scheme.

Item ID: 52218
Item Type: Conference Item (Research - E1)
ISBN: 978-1-4673-5938-2
ISSN: 1558-2612
Funders: National Key Technology R&D Program of China (NKTP)
Projects and Grants: NKTP grant 2013ZX03003005
Date Deposited: 30 Jan 2018 23:45
FoR Codes: 09 ENGINEERING > 0906 Electrical and Electronic Engineering > 090609 Signal Processing @ 100%
SEO Codes: 89 INFORMATION AND COMMUNICATION SERVICES > 8901 Communication Networks and Services > 890199 Communication Networks and Services not elsewhere classified @ 100%
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