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Recursive Least Squares Channel Estimation for Rapidly Time-Varying Scenarios in IEEE 802.11p

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Abstract

Rapid time-varying channel estimation is one of the biggest challenges in IEEE 802.11p standard. It is a wireless vehicular communication standard which is used for outdoor applications. This paper proposes a novel decision-directed recursive least squares time-domain channel estimation method that utilizes the guard interval of every orthogonal frequency division multiplexing symbol. Simulation results show considerably improved bit error rate performance with the proposed method that enables robust channel equalization in rapidly time-varying channel with high Doppler spread.

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Authors and Affiliations

  1. Department of Electronics and Communication Engineering, IIIT-Delhi, New Delhi, India

    Priya Aggarwal, Anubha Gupta & Vivek Ashok Bohara

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  1. Priya Aggarwal
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  2. Anubha Gupta
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  3. Vivek Ashok Bohara
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Correspondence to Priya Aggarwal.

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Aggarwal, P., Gupta, A. & Bohara, V.A. Recursive Least Squares Channel Estimation for Rapidly Time-Varying Scenarios in IEEE 802.11p. Wireless Pers Commun 89, 227–240 (2016). https://doi.org/10.1007/s11277-016-3263-3

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  • DOI: https://doi.org/10.1007/s11277-016-3263-3

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