Final published version
Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Secure communication in cooperative network with wireless information and power transfer
AU - Hu, Shiyang
AU - Ding, Zhiguo
PY - 2015/12
Y1 - 2015/12
N2 - This paper considers the secure communication issue in an amplify-and-forward relaying cooperative network, in which the energy harvesting relay is powered by radio-frequency signals from the source. Based on the two different energy harvesting strategies, that is, power splitting-based relaying protocols and time switching-based relaying protocols, the authors formulate the problem for maximising the secrecy rate subject to the transmitted power constraint by taking into account the power splitting coefficient and time switching coefficient. The authors solve these problems by applying the semi-definite programming relaxation approach and 1D optimisation over the coefficients of energy harvesting protocols. The simulation results are presented to verify the effectiveness of these solutions proposed in this study.
AB - This paper considers the secure communication issue in an amplify-and-forward relaying cooperative network, in which the energy harvesting relay is powered by radio-frequency signals from the source. Based on the two different energy harvesting strategies, that is, power splitting-based relaying protocols and time switching-based relaying protocols, the authors formulate the problem for maximising the secrecy rate subject to the transmitted power constraint by taking into account the power splitting coefficient and time switching coefficient. The authors solve these problems by applying the semi-definite programming relaxation approach and 1D optimisation over the coefficients of energy harvesting protocols. The simulation results are presented to verify the effectiveness of these solutions proposed in this study.
KW - telecommunication security
KW - cooperative communication
KW - radiofrequency power transmission
KW - amplify and forward communication
KW - energy harvesting
KW - relay networks (telecommunication)
KW - optimisation
KW - switching networks
KW - protocols
KW - telecommunication power management
KW - secure communication
KW - amplify-and-forward relaying cooperative network
KW - energy harvesting relay
KW - radiofrequency signal
KW - power splitting-based relaying protocol
KW - switching-based relaying protocol
KW - secrecy rate maximisation
KW - transmitted power constraint
KW - power splitting coefficient
KW - time switching coefficient
KW - semidefinite programming relaxation approach
KW - 1D optimisation
KW - energy harvesting protocol
KW - wireless information transfer
KW - power transfer
KW - RELAY NETWORKS
U2 - 10.1049/iet-spr.2014.0317
DO - 10.1049/iet-spr.2014.0317
M3 - Journal article
VL - 9
SP - 663
EP - 669
JO - Signal Processing
JF - Signal Processing
SN - 1751-9675
IS - 9
ER -