Wireless underground sensor networks consist of sensors that are buried under the ground
and communicate through soil medium. Due to channel characteristics, the connectivity …

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 …

Directional antennas can increase the received power in specific directions while reducing it
in other directions. Utilizing this unique feature, we configure directional antennas at …

The number of hops between source node and destination node is a key parameter in
studying multi-hop wireless networks. Although hop count in wireless ad-hoc networks …

Magnetic induction (MI) has been proven to be an efficient wireless communication
technique for overcoming the transmission challenges in some very harsh propagation …

This paper studies the impact of soil medium properties and network parameters on the
topological connectivity of wireless sensor nodes communicating with each other via …

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 …

The ideal reference book providing all the information needed to fully understand magnetic
communications in a self-contained source, written by experts in the field. This book offers a …

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 investigate the angle-domain spectrum opportunities of secondary users
with directional transmission, and analyze the detection probability of spectrum holes. We …