Title
A Stochastic Model For Non-Stationary Outdoor K-Factor Variation
Abstract
A dense urban cellular environment contains many different locations where a line-of-sight or specular signal component from the base station is present. The small scale fading at these locations is best characterized using the Ricean distribution. However, the K-factor of that distribution will vary from one location to the next. This paper presents a statistical model for dense urban vehicular non-stationary Ricean fading where K-factor changes gradually due to movement through changing surroundings. Using analysis of empirical radio channel measurements, a model is developed to represent K-factor variation as a stochastic process. An auto-regressive (AR) model is used to ensure the autocorrelation of the simulated K-factor process matches the empirical data. The model is verified by using it to simulate a non-stationary Ricean small scale fading envelope and comparing it to the fading envelope seen in the measurements.
Year
DOI
Venue
2008
10.1109/VETECF.2008.33
68TH IEEE VEHICULAR TECHNOLOGY CONFERENCE, FALL 2008
Keywords
Field
DocType
wireless communication,correlation,base station,fading,auto regressive,ar model,stochastic process,statistical model,probability density function,stochastic model,autocorrelation,estimation
Fading,Computer science,Stochastic process,Electronic engineering,Stochastic modelling,Statistical model,Fading distribution,Log-distance path loss model,Probability density function,Autocorrelation
Conference
ISSN
Citations 
PageRank 
1550-2252
0
0.34
References 
Authors
5
2
Name
Order
Citations
PageRank
Geoffrey G. Messier123122.19
Jennifer Hartwell200.34