Channel Impulse Response Estimation in IEEE 802.11p via Data Fusion and MMSE Estimator

Tracking the channel impulse response in systems based on the IEEE 802.11p standard, the most widely accepted standard for the physical layer in vehicular area networks (VANETs), is still an open research topic. In this paper the authors aim to improve previously proposed channel estimators by utilizing data aided algorithm that includes the channel decoding to enhance the quality of the estimated data. Moreover the authors propose a novel technique that exploits information provided by external sensors like global positioning system (GPS) or speedometer, usually present in vehicles. The algorithm proposed so far has been analyzed in non-line-of-sight link conditions; in this paper the authors present an analysis of performances in the line-of-sight condition as well. Simulations show that both proposals give considerable improvements in terms of packet error rate and channel estimation error in the highway scenario which is surely the most stressing environment for the channel response tracker.

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  • Supplemental Notes:
    • Copyright © 2015 Giulio Ministeri and Lorenzo Vangelista.
  • Authors:
    • Ministeri, Giulio
    • Vangelista, Lorenzo
  • Publication Date: 2015

Language

  • English

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Filing Info

  • Accession Number: 01597579
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Apr 15 2016 9:18AM