Delay and Doppler Spreads of Nonstationary Vehicular Channels for Safety-Relevant Scenarios

被引：137

作者：

Bernado, Laura ^{[1
]}

Zemen, Thomas ^{[1
]}

Tufvesson, Fredrik ^{[2
]}

Molisch, Andreas F. ^{[3
]}

Mecklenbraeuker, Christoph F. ^{[4
]}

机构：

[1] Telecommun Res Ctr Vienna FTW, A-1220 Vienna, Austria

[2] Lund Univ, Elect & Informat Technol Dept, S-22100 Lund, Sweden

[3] Univ So Calif, Dept Elect Engn, Los Angeles, CA 90089 USA

[4] Vienna Univ Technol, Inst Telecommun, A-1040 Vienna, Austria

来源：

IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY | 2014年 / 63卷 / 01期

基金：

美国国家科学基金会; 奥地利科学基金会;

关键词：

Channel characterization; channel measurements; non-WSSUS; RMS delay spread; RMS Doppler spread; vehicular communications; vehicle-to-vehicle; PHYSICAL LAYER; VEHICLE; PERFORMANCE; UNCERTAINTY; MODELS;

D O I：

10.1109/TVT.2013.2271956

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Vehicular 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.

引用

页码：82 / 93

页数：12

共 48 条

[11]

Bernado L., 2012, THESIS VIENNA U TECH

[12]

Bernado Laura., 2010, COMMUNICATIONS WORKS, P1

[13] Performance of the 802.11p Physical Layer in Vehicle-to-Vehicle Environments [J].

Fernandez, Joseph A. ;

Borries, Kevin ;

Cheng, Lin ;

Kumar, B. V. K. Vijaya ;

Stancil, Daniel D. ;

Bai, Fan .

IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, 2012, 61 (01) :3-14

[14] An uncertainty relation for WSS processes and its application to WSSUS systems [J].

Fleury, BH .

IEEE TRANSACTIONS ON COMMUNICATIONS, 1996, 44 (12) :1632-1634

[15]

Hlawatsch F, 2011, WIRELESS COMMUNICATIONS OVER RAPIDLY TIME-VARYING CHANNELS, P1

[16] Physical Layer Performance Analysis of V2V Communications in High Velocity Context [J].

Ivan, Iulia ;

Besnier, Philippe ;

Crussiere, Matthieu ;

Drissi, M'hamed ;

Le Danvic, Lois ;

Huard, Mickael ;

Lardjane, Eric .

ITST: 2009 9TH INTERNATIONAL CONFERENCE ON INTELLIGENT TRANSPORT SYSTEMS TELECOMMUNICATIONS, 2009, :409-+

[17] Path Loss Modeling for Vehicle-to-Vehicle Communications [J].

Karedal, Johan ;

Czink, Nicolai ;

Paier, Alexander ;

Tufvesson, Fredrik ;

Molisch, Andreas F. .

IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, 2011, 60 (01) :323-328

[18] Simulation-based performance analysis and improvement of orthogonal frequency division multiplexing-802.11p system for vehicular communications [J].

Kiokes, G. ;

Amditis, A. ;

Uzunoglu, N. K. .

IET INTELLIGENT TRANSPORT SYSTEMS, 2009, 3 (04) :429-436

[19]

Kunisch J, 2008, IEEE VTS VEH TECHNOL, P231

[20] Performance evaluations of channel estimations in IEEE 802.11p environments [J].

Lin, Chi-Sheng ;

Sun, Che-Kang ;

Lin, Jia-Chin ;

Chen, Bo-Chiuan .

TELECOMMUNICATION SYSTEMS, 2013, 52 (04) :1731-1742

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