Line-of-sight clarity and assurance are essential because they are considered the golden rule in wireless network planning, allowing the direct propagation path to connect the transmitter and receiver and retain the strength of the signal to be received. Despite the increasing literature on the line...
We propose a simplified and accurate path loss equation for calculating the free space path loss for 802.11 WLAN line-of-sight links with antennas between 1 and 2.5 meters in height. We validated the accuracy of our WLAN propagation model with empirical measurements using several wireless LAN syst...
Addressing the special features of underwater wireless communication in sensor networks, we propose a novel non-line-of-sight network concept in which the link is implemented by means of back-reflection of the propagating optic signal at the ocean-air interface and derive a mathematical model of ...
Line-of-sight clarity and assurance are essential because they are considered the golden rule in wireless network planning, allowing the direct propagation... MAA Almekhlafi,TAE Eisa,FN Al-Wesabi,... - 计算机,材料和连续体(英文) 被引量: 0发表: 2022年 MODEN: Obstacle-driven Elastic Netw...
We show that, the effective degrees of freedom in RF based OAM communication systems depend on the characteristics of the circular array used to receive the transmitted OAM signals. 展开 关键词: circular antenna array Wireless orbital angular momentum (OAM line of sight MIMO effective degrees of ...
Localization as a technique to solve the complex and challenging problems besetting line-of-sight (LOS) and non-line-of-sight (NLOS) transmissions has recently attracted considerable attention in the wireless sensor network field. This paper proposes a strategy for eliminating NLOS localization errors...
In the field of wireless ultraviolet non- line- of- sight communication, atmospheric scattering and the angle of transceiver are important factors thoes affect the ultraviolet(UV) communication system performance. Based on the single scattering model of UV non-line-of-sight(NLOS) communication, a ...
Multiaccess interference in a non-line-of-sight ultraviolet optical wireless sensor network The concept of exploiting both the scattering properties and the absence of solar radiation in the "solar blind ultraviolet" spectral range for achieving a... D Kedar - 《Applied Optics》 被引量: 47发表:...
Two preemptive polling methods with blockage sensing and signalling for indoor LOS infrared wireless LAN I. INTRODUCTION For a typical indoor line-of-sight (LOS)optical wireless Local Area Network (LAN),an Access Point (AP) mode operation[1] ispreferred. In th... J Hou,DC O-Brien - IEEE...
Booster antennas are also available to increase the operating range of any wireless network. With some highly directional antennas, the range of the IEEE 802.11b has been extended beyond 10 miles. Security With these types of range capabilities, security is a prime issue for wireless users. The...