Abstract

802.11p, also known as WAVE, is a standard protocol intended for future traffic systems in order to support safety and commercial non-safety applications for vehicular communication. 802.11p is modified from 802.11a, and both are based on OFDM. The main difference between 802.11a and 802.11p is that the latter is proposed to use 10 MHz frequency bandwidth (half of bandwidth of 802.11a) in order to make the signal more robust against fading and increase the tolerance for multipath propagation effects of signals in a vehicular environment. In this paper, we investigate the performance difference between 802.11a and 802.11p for Vehicle-to-Infrastructure communication through real-world experiments. We measure contact duration and losses of 802.11p and 802.11a in both LOS and NLOS environments. In addition, we investigate their throughput with different modulations over various distances between OBU and RSU to evaluate the feasibility of using rate adaptation for non-safety V-to-I applications.

Keywords

802.11p guard interval multipath modulation 

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Copyright information

© ICST Institute for Computer Science, Social Informatics and Telecommunications Engineering 2012

Authors and Affiliations

  • Wei-Yen Lin
    • 1
  • Mei-Wen Li
    • 1
  • Kun-Chan Lan
    • 1
  • Chung-Hsien Hsu
    • 2
  1. 1.Computer Science and Information EngineeringTainan CityTaiwan (R.O.C.)
  2. 2.Information and Communications Research LaboratoriesHsinchuTaiwan

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