title: On Connectivity of Wireless Sensor Networks with Directional Antennas.
abstract: 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 connectivity while considering various antenna models and the channel randomness. Since existing directional antenna models have their pros and cons in the accuracy of reflecting realistic antennas and the computational complexity, we propose a new analytical directional antenna model called the iris model to balance the accuracy against the complexity. We conduct extensive simulations to evaluate the analytical framework. Our results show that our proposed analytical model on the network connectivity is accurate, and our iris antenna model can provide a better approximation to realistic directional antennas than other existing antenna models.
authors.affiliation: Faculty of Information Technology, Macau University of Science and Technology, Macau, China. qiu_wang@foxmail.com.
authors.forename: Qiu
authors.initials: Q
authors.lastname: Wang
authors.affiliation: Faculty of Information Technology, Macau University of Science and Technology, Macau, China. hndai@ieee.org.
authors.forename: Hong-Ning
authors.initials: HN
authors.lastname: Dai
authors.affiliation: School of Data and Computer Science, Sun Yat-Sen University, Guangzhou 510006, China. zhzibin@mail.sysu.edu.cn.
authors.forename: Zibin
authors.initials: Z
authors.lastname: Zheng
authors.affiliation: College of Computer and Information Sciences, King Saud University, Riyadh 12372, Saudi Arabia. dr.m.imran@ieee.org.
authors.forename: Muhammad
authors.initials: M
authors.lastname: Imran
authors.affiliation: Department of Computer Science, Electrical and Space Engineering, Lulea University of Technology, Luleå 971 87, Sweden. vasilako@ath.forthnet.gr.
authors.forename: Athanasios V
authors.initials: AV
authors.lastname: Vasilakos
keywords: connectivity; directional antennas; wireless sensor networks