1 citations · 1 across the 2 of their papers we have counts for
3 papers
UAV-Assisted Secure Communications in Terrestrial Cognitive Radio Networks: Joint Power Control and 3D Trajectory Optimization
Phu X. Nguyen, Van-Dinh Nguyen, Hieu V. Nguyen +1
This paper considers secure communications for an underlay cognitive radio network (CRN) in the presence of an external eavesdropper (Eve). The secrecy performance of CRNs is usual…
Optimal User Pairing for Achieving Rate Fairness in Downlink NOMA Networks
Van-Phuc Bui, Phu X. Nguyen, Hieu V. Nguyen +2
In this paper, a downlink non-orthogonal multiple access (NOMA) network is studied. We investigate the problem of jointly optimizing user pairing and beamforming design to maximize…
An Efficient Spectral Leakage Filtering for IEEE 802.11af in TV White Space
Phu Xuan Nguyen, Thinh Hung Pham, Trang Hoang +1
Orthogonal frequency division multiplexing (OFDM) has been widely adopted for modern wireless standards and become a key enabling technology for cognitive radios. However, one of i…