-Radio Frequency (RF) propagation is the study of how radio waves broadcast over distances. One of the main problems in mobile radio communication is the loss of propagated RF signal power at the receiver due to fading. When the fading is very strong, the signal is blocked. Modeling of the signal propagation loss is an important element of the design and performance analysis of wireless communi...

A wide variety of radio propagation models for different wireless services that specifically address varying propagation environments and operating frequency bands are generally known (Pahlavan et al. 1995; Jakes 1974). A large number of propagation prediction models have been developed for various terrain irregularities, tunnels, urban streets and buildings, earth curvature, etc. (E. Vehicular...

Radio wave propagation models are extremely important in radio network planning, design as well as in interference planning. Radio propagation is essential for emerging technologies with appropriate design, deployment and management strategies for any wireless network. It is heavily site specific and can vary significantly depending on terrain, frequency of operation, velocity of mobile termina...

The deployment of mobile ad hoc networks is difficult in a research environment and therefore the performance of protocols for these networks has been mostly evaluated on simulators. A simulator must replicate realistic conditions and one of the most difficult aspects is the radio signal propagation model. The literature shows that many performance evaluations were conducted using propagation m...

Vegetation is an indispensable feature of most outdoor wireless channel environments. The interaction between radio waves and vegetation has been researched for several decades. Because of the complex structure of the foliage, composed of randomly oriented trunks, branches, twigs and leaves, the involved physical process in the propagation of the radiowave through vegetation is complex. Accurat...

Systems for indoor positioning using radio technologies are largely studied due to their convenience and the market opportunities they offer. The positioning algorithms typically derive geographic coordinates from observed radio signals and hence good understanding of the indoor radio channel is required. In this paper we investigate several factors that affect signal propagation indoors for bo...

Estimating the position of mobile terminals is an important problem for cellular networks. A low cost method of locating the mobile terminal is to use measurements of the radio path loss. The distribution of radio path loss is, unfortunately, a non-linear function of the mobile terminal location. The non-linearity results from large obstacles to radio-wave propagation such as buildings or hills...

6 Next generation wireless communication systems will consist of a large number of mobile or static terminals and should be 7 able to fulfill multiple requirements depending on the current situation. Low latency and high packet success transmission rates 8 should be mentioned in this context and can be summarized as ultra-reliable communications (URC). Especially for domains 9 like mobile gamin...