Paper Info
Title
Spectrogram Analysis Of Multipath Fading Channels Under Variations Of The Mobile Speed
Abstract
When modelling, analysing, and simulating mobile radio channels, it is generally assumed that the speed of the mobile station (MS) is constant. In practice, however, the mobile speed varies with time. Mobile speed variations result in non-wide-sense stationary multipath fading channels, which can be modelled by a sum-of-chirps (SOCh) processes. In this paper, we analyse the local Doppler power spectral density (PSD) of SOCh processes by using the concept of the spectrogram. The spectrogram provides an estimate of the local Doppler PSD and gives insight into how the Doppler PSD changes over time if the MS increases or decreases its speed. A closed-form solution is presented for the spectrogram of SOCh processes, which includes the spectrogram of sum-of-cisoids (SOCi) processes as a special case if the MS moves with constant speed. The results of this paper contribute to the modelling, analysis, and simulation of non-stationary mobile radio channels and provide the basis for the performance analysis of mobile communication systems under non-stationary conditions caused by mobile speed variations.
Year
Venue
Field
2016
2016 IEEE 84TH VEHICULAR TECHNOLOGY CONFERENCE (VTC FALL)
Multipath propagation,Mobile station,Computer science,Spectrogram,Communication channel,Electronic engineering,Spectral density,Time–frequency analysis,Doppler effect,Mobile telephony
DocType
ISSN
Citations 
Conference
2577-2465
0
PageRank 
References 
Authors
0.34
0
2
Name
Order
Citations
PageRank
Matthias Pätzold151975.89
Carlos A. Gutiérrez-Díaz-de-León2295.20