Y Wang, Q Wang, HN Dai, H Wang… - 2016 IEEE …, 2016 - ieeexplore.ieee.org
In conventional cognitive radio ad hoc networks, both primary users (PUs) and secondary users (SUs) are typically equipped with omni-directional antennas, which can cause high …
This paper investigates the impact of using directional antennas and beamforming schemes on the connectivity of cognitive radio ad hoc networks (CRAHNs). Specifically, considering …
Q Wang, HN Dai, O Georgiou, Z Shi… - IEEE Transactions on …, 2018 - ieeexplore.ieee.org
In underlay cognitive radio networks (CRNs), the connectivity of secondary users (SUs) is difficult to be guaranteed due to the existence of primary users. Most prior studies only …
LT Dung, B An - Wireless Networks, 2017 - Springer
In this paper, we present an analytical modeling framework for supporting and evaluating the impact of shadowing and beamforming on the topological connectivity of cognitive radio …
TD Hieu, B An, BS Kim - 2016 International Symposium on …, 2016 - ieeexplore.ieee.org
In this paper, we investigate the impact of using directional antennas and beamforming schemes on the connectivity of cognitive radio ad-hoc networks (CRAHNs). Specifically …
We investigate the local connectivity of cognitive radio ad hoc networks (CRAHNs), ie, node degree and probability of node isolation. The local connectivity of CRAHNs depends on not …
SG Choi - Simulation Modelling Practice and Theory, 2018 - Elsevier
Due to the spatial–temporal spectrum mobility in cognitive radio ad-hoc networks (CRAHNs), multi-hop communication paths among secondary users have to detour or even …
In this paper, we study the connectivity of cognitive radio ad-hoc networks (CRAHNs) where primary users (PUs) and secondary users (SUs) are randomly distributed in a given area …
D Lu, X Huang, P Li, J Fan - 2012 Proceedings IEEE INFOCOM, 2012 - ieeexplore.ieee.org
Connectivity of large-scale wireless networks has received considerable attention in the past several years. Different from traditional wireless networks, in Cognitive Radio Ad-hoc …