Yi Gong

Yi Gong

Postgraduate Research Student

Academic and research departments

Nanoelectronics Centre.


My research project


G Chen, Y Gong, J Chambers (2013)Study of Relay Selection in a Multi-Cell Cognitive Network, In: IEEE WIRELESS COMMUNICATIONS LETTERS2(4)pp. 435-438 IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
G Chen, Z Tian, Y Gong, Z Chen, JA Chambers (2014)Max-Ratio Relay Selection in Secure Buffer-Aided Cooperative Wireless Networks, In: IEEE TRANSACTIONS ON INFORMATION FORENSICS AND SECURITY9(4)pp. 719-729 IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
G Chen, Y Gong, P Xiao, JA Chambers (2015)Physical Layer Network Security in the Full-Duplex Relay System, In: IEEE TRANSACTIONS ON INFORMATION FORENSICS AND SECURITY10(3)pp. 574-583 IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC

This paper investigates the secrecy performance of full-duplex relay (FDR) networks. The resulting analysis shows that FDR networks have better secrecy performance than half duplex relay networks, if the self-interference can be well suppressed. We also propose a full duplex jamming relay network, in which the relay node transmits jamming signals while receiving the data from the source. While the full duplex jamming scheme has the same data rate as the half duplex scheme, the secrecy performance can be significantly improved, making it an attractive scheme when the network secrecy is a primary concern. A mathematic model is developed to analyze secrecy outage probabilities for the half duplex, the full duplex and full duplex jamming schemes, and the simulation results are also presented to verify the analysis.

GJ Chen, L Ge, Y Gong, JA Chambers (2013)Outage analysis of multi-relay selection in underlay cognitive AF relay networks, In: IET Seminar Digest2013(1)

We evaluate the outage probability of cognitive amplify-and-forward relay networks with cooperation between certain secondary users chosen by multi-relay selection based on the underlay approach, while adhering to the interference constraint on the primary user. A max-min strategy is employed to perform best relay or multi-relay, i.e. between two and four relays, selection. We obtain analytical expressions for the probability density function (PDF), and cumulative density function (CDF) of the received signal-to-noise ratio (SNR) and thereby provide near closed form expressions for outage probability over Rayleigh frequency flat fading channels, which are verified by numerical simulation.

G Chen, Y Gong, P Xiao, J Chambers (2016)Dual Antenna Selection in Secure Cognitive Radio Networks, In: IEEE Transactions on Vehicular Technology

This paper investigates data transmission and physical layer secrecy in cognitive radio network. We propose to apply full duplex transmission and dual antenna selection at secondary destination node. With the full duplex transmission, the secondary destination node can simultaneously apply the receiving and jamming antenna selection to improve the secondary data transmission and primary secrecy performance respectively. This describes an attractive scheme in practice: unlike that in most existing approaches, the secrecy performance improvement in the CR network is no longer at the price of the data transmission loss. The outage probabilities for both the data transmission and physical layer secrecy are analyzed. Numerical simulations are also included to verify the performance of the proposed scheme.