Pilot Subcarrier Based Channel Estimation Scheme in IEEE 802.11p Systems 


Vol. 40,  No. 5, pp. 791-798, May  2015


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  Abstract

It has been grown interests of the convergence technologies about communication systems and vehicular industry. Vehicular communications enable a number of infotainment applications to serve cars under high mobility environments. To achieve this goal, a robust and accurate channel estimation scheme is of great importance. This paper proposes an enhanced Decision-Directed channel estimation scheme called PTAU(Pilot Tone Aided Update) for IEEE 802.11p in vehicular communication environment. Existing approaches which use subsequent data symbols to estimate channel response in time domain will lead to the error propagation. In this paper, we use the pilot subcarriers to get initial channel response, then utilize the correlation characteristics to update channel response in frequency domain. Finally, Analysis and simulation results reveal that the proposed scheme outperforms in bit error rate(BER), significantly improve the performance of the estimation.

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  Cite this article

[IEEE Style]

R. Yongzhe, D. C. Park, S. C. Kim, "Pilot Subcarrier Based Channel Estimation Scheme in IEEE 802.11p Systems," The Journal of Korean Institute of Communications and Information Sciences, vol. 40, no. 5, pp. 791-798, 2015. DOI: .

[ACM Style]

Ren Yongzhe, Dong Chan Park, and Suk Chan Kim. 2015. Pilot Subcarrier Based Channel Estimation Scheme in IEEE 802.11p Systems. The Journal of Korean Institute of Communications and Information Sciences, 40, 5, (2015), 791-798. DOI: .

[KICS Style]

Ren Yongzhe, Dong Chan Park, Suk Chan Kim, "Pilot Subcarrier Based Channel Estimation Scheme in IEEE 802.11p Systems," The Journal of Korean Institute of Communications and Information Sciences, vol. 40, no. 5, pp. 791-798, 5. 2015.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880