In this paper, we investigate the network connectivity of wireless sensor networks with
directional antennas. In particular, we establish a general framework to analyze the network …

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 …

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 …

In this paper, we analyze the connectivity of cognitive radio ad-hoc networks in a log-normal
shadow fading environment. Considering secondary user and primary user's locations and …

This paper investigates the impact of using directional antennas and beamforming schemes
on the connectivity of cognitive radio ad hoc networks (CRAHNs). Specifically, considering …

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 …

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 …

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 …

In cognitive radio ad hoc networks, omni-directional antennas are typically used at both
primary users (PUs) and secondary users (SUs), which can cause high interference. We …

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 …