We address the question of program size of of perfect and universal hash functions. We
prove matching upper and lower bounds (up to constant factors) on program size …

With the potential of fixed wireless access (FWA) networks as an alternative to optical fiber, it
is necessary to determine vegetation loss at millimeter wave frequencies. In this article, we …

The implementation of a web-based application to estimate the path loss in outdoor
environments is presented in this article. The tool provides the results of an empirical …

Channel model provides basis in the link budgetary for planning and design of low margin
systems of communication links. This paper proposed a simple and efficient channel model …

This paper presents the study of microwave signal attenuation on oil palm trees at 0.9 GHz,
1.8 GHz and 2.3 GHz frequencies. The main objective is to investigate the characteristics of …

The appearance of vegetation along radio communication channel can significantly reduce
quality of propagating signal. Hence, the need for wireless signal operators to understand …

This paper presents new empirical prediction models for loss estimation in forest
environment. Experimental investigations were carried out on groups of trees in form of …

Electricity companies are accelerating the process of implementing smart grids. Two main
components of the smart grid architecture are the communication networks for Distribution …

This paper presents an empirical study for fixed wireless links based on IEEE802. 16
standard in a vegetated residential environment. Field measurements were conducted for …

This practical book shows the procedure to integrate, in a practical way, empirical
propagation methods with geographical information systems (GIS) to obtain the radio …