Eavesdropping security in wireless ad hoc networks with directional antennas

Q Wang, HN Dai, Q Zhao - 2013 22nd Wireless and Optical …, 2013 - ieeexplore.ieee.org
The eavesdropping security of wireless ad hoc networks has attracted considerable
attention recently. However, most of current studies only consider OMN networks, where …

A novel multi-channel MAC protocol for directional antennas in ad hoc networks

B Khatiwada, S Moh - Wireless Personal Communications, 2015 - Springer
In recent years, the employment of directional antennas in ad hoc networks has increased
significantly. In this paper, we propose a multi-channel MAC protocol for directional …

Joint channel assignment and routing in multiradio multichannel wireless mesh networks with directional antennas

N Sadeghianpour, TC Chuah… - International Journal of …, 2015 - Wiley Online Library
The aggregate capacity of a wireless mesh network (WMN) is severely affected by interflow
interference. In this paper, we propose a network architecture that incorporates directional …

Exploring security improvement of wireless networks with directional antennas

HN Dai, D Li, RCW Wong - 2011 IEEE 36th Conference on …, 2011 - ieeexplore.ieee.org
There are a number of studies on using directional antennas in wireless networks. Many of
them concentrate on analyzing the theoretical capacity improvement by using directional …

In-and out-degree distributions of nodes and coverage in random sector graphs

R Ferrero, MV Bueno-Delgado… - IEEE transactions on …, 2014 - ieeexplore.ieee.org
In a random sector graph, the presence of an edge between two nodes depends on their
distance and spatial orientation. This kind of graph is widely used for modeling wireless …

On capacity scaling law of cognitive radio ad hoc networks

Y Shi, C Jiang, YT Hou… - 2011 Proceedings of 20th …, 2011 - ieeexplore.ieee.org
Cognitive radio is envisioned to be an enabling radio technology for future wireless
networks. In this paper, we study the capacity scaling laws for cognitive radio ad hoc …

On local connectivity of cognitive radio ad hoc networks with directional antennas

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 …

Analysis of capacity improvement by directional antennas in wireless sensor networks

J Zhang, X Jia, Y Zhou - ACM Transactions on Sensor Networks (TOSN), 2012 - dl.acm.org
In this article we analyze capacity improvement by directional antennas over omni antennas
in wireless sensor networks. The capacity in our analysis is the end-to-end per-node …

Connectivity of cognitive radio ad hoc networks with directional antennas

Y Wang, Q Wang, HN Dai, H Wang, Z Shi - Wireless Networks, 2018 - Springer
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 …

Invar MEMS milliactuator for hard disk drive application

T Hirano, LS Fan, JQ Gao - Proceedings IEEE The Tenth …, 1997 - ieeexplore.ieee.org
High-bandwidth servo actuation of the recording head is necessary for future high areal
recording density hard-disk drives. The" piggy-back" actuation scheme, in which a MEMS …