Sökning: onr:"swepub:oai:lup.lub.lu.se:219d336a-1b0d-4946-a8a6-f06678a78856" >
Delay and Doppler S...
Delay and Doppler Spreads of Non-Stationary Vehicular Channels for Safety Relevant Scenarios
-
Bernado, Laura (författare)
-
Zemen, Thomas (författare)
-
- Tufvesson, Fredrik (författare)
- Lund University,Lunds universitet,Institutionen för elektro- och informationsteknik,Institutioner vid LTH,Lunds Tekniska Högskola,Department of Electrical and Information Technology,Departments at LTH,Faculty of Engineering, LTH
-
visa fler...
-
- Molisch, Andreas (författare)
- Lund University,Lunds universitet,Institutionen för elektro- och informationsteknik,Institutioner vid LTH,Lunds Tekniska Högskola,Department of Electrical and Information Technology,Departments at LTH,Faculty of Engineering, LTH
-
Mecklenbraäuker, Christoph (författare)
-
visa färre...
-
(creator_code:org_t)
- 2014
- 2014
- Engelska.
-
Ingår i: IEEE Transactions on Vehicular Technology. - 1939-9359. ; 63:1, s. 82-93
- Relaterad länk:
-
http://arxiv.org/abs... (free)
-
visa fler...
-
http://dx.doi.org/10...
-
https://lup.lub.lu.s...
-
https://doi.org/10.1...
-
visa färre...
Abstract
Ämnesord
Stäng
- Abstract in UndeterminedVehicular communication channels are characterized by a nonstationary time-frequency-selective fading process due to rapid changes in the environment. The nonstationary fading process can be characterized by assuming local stationarity for a region with finite extent in time and frequency. For this finite region, the wide-sense stationarity and uncorrelated scattering assumption approximately holds, and we are able to calculate a time-frequency-dependent local scattering function (LSF). In this paper, we estimate the LSF from a large set of measurements collected in the DRIVEWAY'09 measurement campaign, which focuses on scenarios for intelligent transportation systems (ITSs). We then obtain the time-frequency-varying power delay profile (PDP) and the time-frequency-varying Doppler power spectral density (DSD) from the LSF. Based on the PDP and the DSD, we analyze the time-frequency-varying root-mean-square (RMS) delay spread and the RMS Doppler spread. We show that the distribution of these channel parameters follows a bimodal Gaussian mixture distribution. High RMS delay spread values are observed in situations with rich scattering, whereas high RMS Doppler spreads are obtained in drive-by scenarios.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering (hsv//eng)
Nyckelord
- Channel characterization
- RMS Doppler spread
- RMS delay spread
- channel measurements
- non-WSSUS
- vehicle-to-vehicle
- vehicular communications
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
Hitta via bibliotek
Till lärosätets databas