Accurately characterizing the propagation of RF signals in tunnels is important for rescue, safety, and military purposes. The material composition of the tunnel, the tunnel shape and size, obstructions, and tunnel bends present challenges. In this paper we use Wireless InSite to analyze how tunnel diameter and shape affect the propagation characteristics.
This paper presents results from sea to land propagation using Wireless InSite. The effort explores the effects of various elements in the scene and how they impact the results. The various elements in the scene include the ships out at sea, the ships docked, the docks themselves, the buildings around the dock area, and the material properties of each.
Significant improvements in the quality and reliability of indoor WLAN communications are claimed for devices with MIMO technology applying 802.11n standards, which allow users to achieve a theoretical data rate up to 300-600 Mbps on a single transmission. This paper presents an analysis of a commercial 802.11n MIMO 2×3 dual band (2.4 and 5 GHz) system focusing on the operational throughput performance over an indoor environment for Line of Sight (LOS) and Non Line of Sight (NLOS) scenarios.
The moving window finite difference time domain (MWFDTD) method is used to analyze propagation between low to the ground antennas commonly used in wireless unattended ground sensor networks. The propagation path loss at 300 MHz is computed for several terrains exhibiting different degrees of roughness.
For predictions of vehicle to vehicle communications,convoy communications, and Improvised Electronic Device (IED) detection/defense operations, Remcom's Wireless InSite Real Time (RT) provides a very rapid propagation prediction capability in urban environments. Previous models are either empirical and inaccurate but fast, or deterministic and high-fidelity but slow. The RT Module takes the best of both.