Observations of 5.9‐GHz Radio Propagation and 802.11p Network Performance at Road Junctions
| Autor: | D. Hassan, S. K. A. Alwane, C. J. Clayton, A. J. Stocker |
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| Rok vydání: | 2019 |
| Předmět: |
010504 meteorology & atmospheric sciences
Computer science Network packet Acoustics 020206 networking & telecommunications 02 engineering and technology Condensed Matter Physics Vehicle-to-vehicle 01 natural sciences Radio propagation Signal strength 0202 electrical engineering electronic engineering information engineering Range (statistics) General Earth and Planetary Sciences Network performance Transient (oscillation) Electrical and Electronic Engineering Empirical relationship 0105 earth and related environmental sciences |
| Zdroj: | Radio Science. 54:468-479 |
| ISSN: | 1944-799X 0048-6604 |
| DOI: | 10.1029/2018rs006643 |
| Popis: | The propagation of 5.9-GHz radio signals and performance of an 802.11p network were measured at three road junctions each having a different density of buildings. The maximum range for which acceptable performance (defined as where the packet delivery ratio was greater than 90%) was dependent on the junction but lies in the range of 45–70 m. While reflections from transient vehicles were often found to have a small positive impact on network performance, this could not be relied upon to provide a reliable improvement in communications. The received signal strength was dependent on the junction type with the strong reflections from buildings located on the opposite side of a T-junction leading to higher signal strength. Finally, an empirical relationship between the packet delivery ratio and the received signal strength has been established that will allow modelers to link signal strength to network performance for field conditions. |
| Databáze: | OpenAIRE |
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