Vehicle-to-Vehicle Radio Channel Characterization in Crossroad Scenarios

Research output: Contribution to journalArticleScientificpeer-review

Researchers

Research units

  • Beijing Jiaotong University
  • University of Southern California
  • Nokia
  • Universite Catholique de Louvain

Abstract

Vehicle-to-vehicle (V2V)-communication-based collision avoidance systems detect if two vehicles are on a collision course (e.g., in crossroads, intersections, and highway merging), and they are particularly useful in the absence of line of sight (LOS) owing to buildings, roadside infrastructures, and road bending. Relying on radio measurements using a 4 × 30 multiple-input-multiple-output (MIMO) system at 5.3 GHz, this paper presents the results of an empirical study of V2V propagation channels in two suburban crossroad scenarios, where vehicles are either moving in the same direction and separate from each other along different roads or pass each other in opposite directions at the crossing. The quasi-stationarity interval is first characterized using correlation matrix distance (CMD). Small-scale fading follows a Nakagami distribution based on the Akaike information criteria (AIC). Delay and angular dispersions are found to be significantly affected by the type of crossroad and the presence of an LOS. Cross-correlation coefficients between delay dispersion, angular dispersion, and small-scale fading behavior are also evaluated. By comparing the results of the different crossroads, it is found that the delay and angular dispersions are large in the first type of crossroad. By contrast, in the second type of crossroad, small delay and angular dispersions are observed due to road bending and obstruction by roadside trees.

Details

Original languageEnglish
Article number7226856
Pages (from-to)5850-5861
Number of pages12
JournalIEEE Transactions on Vehicular Technology
Volume65
Issue number8
Publication statusPublished - 1 Aug 2016
MoE publication typeA1 Journal article-refereed

    Research areas

  • Channel characterization, crossroad, propagation, vehicle-to-vehicle (V2V) communications

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