Research Article
Power Allocation in One-Way Untrusted AF Relay System with Friendly Jamming
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@INPROCEEDINGS{10.1007/978-3-319-72823-0_54, author={Ronghua Luo and Chao Meng and Guobing Hu and Hua Shi}, title={Power Allocation in One-Way Untrusted AF Relay System with Friendly Jamming}, proceedings={5G for Future Wireless Networks. First International Conference, 5GWN 2017, Beijing, China, April 21-23, 2017, Proceedings}, proceedings_a={5GWN}, year={2018}, month={1}, keywords={Physical layer security Secrecy rate Friendly jammer Source optimization problem Power allocation}, doi={10.1007/978-3-319-72823-0_54} }- Ronghua Luo
Chao Meng
Guobing Hu
Hua Shi
Year: 2018
Power Allocation in One-Way Untrusted AF Relay System with Friendly Jamming
5GWN
Springer
DOI: 10.1007/978-3-319-72823-0_54
Abstract
In this paper, the physical layer security in one-way untrusted AF relay system is considered. For improving the physical layer security, external friendly jammers offer help through transmitting interference signal to the untrusted relay. It is indicated that a nonzero secrecy rate is achievable in one-way untrusted AF relay system with the help of friendly jammers. The source optimization problem is further formulated. In this optimization problem, in order to increasing the secrecy rate, the source must pay the jammers for exchanging their service of jamming. Finally, an optimal transmit power allocation of all the nodes is provided for the system. And simulation results verify the properties.
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