IEEE 802.11p
计算机科学
物理
网络数据包
计算机网络
抖动
吞吐量
字节
延迟(音频)
IEEE 802.15
IEEE 802
物理层
车载自组网
无线
电信
服务质量
无线自组网
无线传感器网络
操作系统
作者
Fernando A. Teixeira,Vinicius F. e Silva,Jesse L. Leoni,Daniel F. Macedo,José Marcos S. Nogueira
标识
DOI:10.1016/j.vehcom.2014.04.001
摘要
The IEEE 802.11 working group proposed a standard for the physical and medium access control layers of vehicular networks called 802.11p. In this paper we report experimental results obtained from communication between vehicles using 802.11p in a real scenario. The main motivation is the lack of studies in the literature with performance data obtained from off-the-shelf 801.11p devices. Our study characterizes the typical conditions of an 802.11p point-to-point communication. Such a study serves as a reference for more refined simulation models or to motivate enhancements in the PHY/MAC layers. Field tests were carried out varying the vehicle's speed between 20 and 60 km/h and the packet length between 150 and 1460 bytes, in order to characterize the range, throughput, latency, jitter and packet delivery rates of 802.11p links. It was observed that communication with vehicles in motion is unstable sometimes. However, it was possible to transfer data at distances over 300 m, with data rates sometimes exceeding 8 Mbit/s.
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