Optimal altitude of UAV-BS for minimum boundary outage probability with imperfect channel state information

B Wang, J Ouyang, WP Zhu… - 2019 IEEE/CIC …, 2019 - ieeexplore.ieee.org
In this paper, we investigate the altitude optimization problem for an unmanned aerial
vehicles base station (UAV-BS), which provides wireless communication services for …

An approach of robust power control for cognitive radio networks based on chance constraints

Z Zhao, Z Liu, P Wang, X Guan - Peer-to-Peer Networking and …, 2019 - Springer
The changing and fluctuations of channel gains are inevitable in wireless communication. In
this paper, a robust power control scheme for cognitive radio networks is proposed with …

Optimal Channel Reservation for Primary Users in Spectrum Sharing

A Patel, MZA Khan - … on Personal, Indoor and Mobile Radio …, 2019 - ieeexplore.ieee.org
In this paper, we propose a channel reservation scheme for a cognitive radio network where
a fraction of channels are strictly reserved for the Primary user (PU) transmissions only. The …

Cooperative Beamforming in Cognitive Radio Relay Networks Using Amplify-and-Forward Relaying Technique

A Behrouzi-Far, S Mohammadkhani - arXiv preprint arXiv:1910.08230, 2019 - arxiv.org
In this work, we study the problem of relay beamforming for an underlay cognitive radio relay
network using amplify-and-forward (AF) relaying technique. We consider a cognitive radio …

Robust UAV Communications with Jamming

H Wang, J Yao, J Chen, G Ding, L Yu - International Conference on …, 2019 - Springer
Unmanned aerial vehicle (UAV) communication has attracted increasing attention recently,
benefiting from its high mobility. However, most existing studies concentrate on a perfect …

Relay assisted device-to-device communication with channel uncertainty

UE Uyoata - 2019 - open.uct.ac.za
The gains of direct communication between user equipment in a network may not be fully
realised due to the separation between the user equipment and due to the fading that the …

[引用][C] Energy-Efficient Design in Cognitive MIMO Systems

L Fu - Handbook of Cognitive Radio, 2019 - Springer