radio propagation
Indoor Radio Propagation
... cause radio signal distortions and give rise to signal fades, as well as additional signal propagation ...reliable radio communications ...other radio propagation disturbances (as the ...
24
Angle and Time of Arrival Characteristics of 3D Air-to-Ground Radio Propagation Environments
... A2G/G2A radio propagation environments is provided in ...multipath propagation channel over sea surface is given in ...reflected propagation paths provides a good fit to the measured channel ...
32
Characterization and Modeling of Large Scale Fading for Radio Propagation in Rwanda
... the radio propagation parameters that affect the received signal level on radio links in Rwanda and we determine the best path loss model for prediction of the received signal ...of ...
9
Indoor Radio Propagation Model Based on Dominant Path
... the radio waves basically can not penetrate ...the radio waves will reach the user by bypass ...indoor radio propagation model based on dominant path in which the received signal strength has ...
8
Geometrically Based Channel Model for Indoor Radio Propagation with Directional Antennas
... Abstract—A geometrically based channel model is proposed to describe radio propagation in an indoor environment with directional antennas. In conventional geometric channel models (GCMs), distribution of ...
16
Uncertainty Quantification of Radio Propagation Using Polynomial Chaos
... the radio wave propagates we have a section in the environment where we do not have complete information on some of the dielectric ...the propagation of the wave in this ...
9
Geometry-Based Statistical Model for Radio Propagation in Rectangular Office Buildings
... The main contribution of this paper is thus to introduce a new model for more appropriate characterization of radio propagation within a rectangular building. The scattering elements are modeled as randomly ...
26
A Mathematical Model of Multi Hop HF Radio Propagation
... It is an eternal topic to study the minimum loss under the maximum trans- mission distance and the practicality of radio propagation in the navigation of ships. The transmission loss by dividing it to ...
10
Modeling the Effect of Periodic Wall Roughness on the Indoor Radio Propagation Channel
... Radio propagation in wave guiding structures such as tunnels, canyons and corridors have received increasing interest from cellular networks operators and the research ...on Radio-Local Area Network ...
13
Energy Evaluation of MANET routing protocols for different Radio Propagation Models
... the radio waves targeted coverage area. Targeted radio coverage area has decisive network performance and fiscal impact on the ...Targeted radio coverage depends on number of parameters such as the ...
7
Radio Propagation Prediction for HF Communications
... HF propagation conditions of an ionospheric transmission link between two points on the earth vary with daytime, season, and the solar ...other radio propagation ...its propagation factor M ...
8
Survey of Channel and Radio Propagation Models for Wireless MIMO Systems
... the radio link can be easily stored in files (environment databases) and the corresponding prop- agation process can be simulated through computer pro- ...actual propagation process, determin- istic models ...
19
Analysis Of Radio Propagation Characteristics For An Operative GSM Network: A Case Study Of Makurdi
... the radio propagation characteristics of an environment is a necessary condition for effective radio network planning; the conventional planning approach which is widely used is called the analytical ...
10
Radio propagation measurement for broadband system
... The phenomenon of reflection, diffraction and scattering all give rise to additional radio propagation paths beyond the direct optical "line of sight" path between the radio transmitter [r] ...
24
Analysis of Radio Propagation Inside the Human Body for in Body Localization Purposes
... the propagation speed varies over the different tissue ...by propagation models suggested in literature (Section II-C) or by analysis of the physical channel medium as it is proposed in this ...RF ...
15
Fast algorithm for radio propagation modeling in realistic 3-D urban environment
... In this section, we will present some simulation results re- garding the path loss of a moving user in the described sce- nario. Figure 8 shows the path loss between transmitter and a moving user that follows the same ...
5
Advanced radio propagation methodology for the optimisation of resources in mobile systems
... Mandarini, University of Rome 'La Sapienza', Italy... Parallel Advanced Time Division Multiple Access Modems for UMTS.[r] ...
11
Anomalous Radio Propagation and Relative Incidence inTropical Zone
... 3.1. Refractivity Gradient and Anomalous Propagation Figure 1, depict the average seasonal variations of G over the whole periods of study. Values of G oscillate between - 660 and 138 N-units/km, with a range of ...
5
Optimization of Rf Propagation Models for Cognitive Radio
... loss. Radio propagation models are empirical in nature and developed based on large collection of data for the specific ...loss propagation models in radio communication at different frequency ...
6
Design of Cognitive Radio Database using Terrain Maps and Validated Propagation Models
... available radio spectrum becomes scarce, there is the possibility of using TV white space devices (WSDs) as secondary users in the Broadcast Bands without causing harmful interference to licensed ...of ...
7