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http://dx.doi.org/10.5392/IJoC.2019.15.4.027

Advanced Channel Estimation Method for IEEE 802.11p/WAVE System  

Jang, DongSeon (Dept. of Information Technology Convergence Korea National University of Transportation)
Ko, Kyunbyoung (Dept. of Information Technology Convergence and Dept. of Electronics Engineering Korea National University of Transportation)
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Abstract
In this paper, we propose an advanced Minimum Mean Square Error (MMSE) channel estimation method for IEEE 802.11p/Wireless Access in Vehicular Environments (WAVE) systems. To improve the performance of MMSE method, we apply the Weighted Sum using Update Matrix (WSUM) scheme to the step of calculating the instantaneously estimated channel and then, a time domain selectively averaging method is applied after the WSUM scheme. Based on that, the accuracy of instantaneously estimated channel increases and then, the accuracy of auto covariance matrix also increases. Consequently, we can achieve the performance gain over the conventional MMSE method. Through simulations based on the IEEE 802.11p standard, it is confirmed that the proposed scheme can outperform the existing channel estimation schemes.
Keywords
IEEE 802.11p; WAVE; MMSE; WSUM;
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Times Cited By KSCI : 1  (Citation Analysis)
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1 IEEE802.11p, IEEE Standard for Information Technology Telecommunication and Information Exchange Between Systems Local and Metropolitan Area Networks Specific Requirements. part 11: Wireless LAN MAC and PHY Specifications Amendment 6: Wireless Access in Vehicular Environments, 22 July 2014.
2 Malik Kahn, "IEEE 802.11 Regulatory SC DSRC Coexistence Tiger Team - V2V Radio Channel Models," Feb. 2014.
3 Sungmook Lim and Changick Song, "Iterative Channel Estimation Method to Enhance PER in V2V Communications Based on IEEE 802.11p," The Journal of Korean Institute of Information Technology, vol. 14, no. 12, Dec. 2016, pp. 79-88, doi: 10.14801/jkiit.2016.14.12.79
4 J. Zhao, X. Cheng, M. Wen, B. Jiao, and C. X. Wang, "Channel Estimation Schemes for IEEE 802.11p Standard," IEEE Intelligent Transportation Systems Magazine, vol. 5, no. 4, winter 2013, pp. 38-49, doi: 10.1109/MITS.2013.2270032   DOI
5 Yoon Kyeong Kim, Jang-Mi Oh, Yoo Ho Shin, and Cheol Mun, "Time and frequency domain channel estimation scheme for IEEE 802.11p," Intelligent Transportation Systems (ITSC), 2014 IEEE 17th International Conference on, 8-11 Oct. 2014, pp. 1085-1090, doi: 10.1109/ITSC.2014.6957832
6 J. Y. Choi, K. H. Yoo, and C. Mun, "MMSE Channel Estimation Scheme using Virtual Pilot Signal for IEEE 802.11p," Journal of Korean Institute of Information Technology, vol. 14, no. 6, Jun. 2016, pp. 51-57, doi: 10.14801/jkiit.2016.14.6.51
7 Joo-Young Choi, Cheol Mun, and Jong-Gwan Yook, "Adaptive Channel Estimation Based on a Decision Method Using a Long Preamble for the IEEE 802.11p," Proc. VTC2017-Spring, Sydney, Australia, 4-7 Jun. 2017, doi: 10.1109/VTCSpring.2017.8108356
8 Cho-Eun Park and Kyun-Byoung Ko, "Advanced Channel Estimation Schemes Using CDP based Updated Matrix for IEEE802.11p/WAVE Systems," International Journal of Contents, vol. 14, no. 1, Mar. 28, 2018, pp. 39-44, doi: https://doi.org/10.5392/IJOC.2018.14.1.039   DOI