A Combination of Interpolation and Spatial Correlation Technique to Estimate the Channel in Wideband MIMO-OFDM System
Main Article Content
Abstract
In this paper, we combine the interpolation and the spatial correlation techniques to estimate the channel coefficient in wideband multi-input multi-output orthogonal frequency division multiplexing (MIMO-OFDM) system. The simulation is based on the measurement channel modelling method - the Spatial Channel Model (SCM) in the suburban macrocell and microcell environment, under the LTE Advanced standard for 4G. The obtained results show symbol error rate (SER) value when using both different interpolation methods (Linear, Sinc Interpolation-SI and Wiener) and spatial correlation coefficients. The SER results in the SCM channel model are shown that the more of the window step of the interpolation, the worse of the performance system is, as well as, the effect of estimating channel is improved by increasing the distance of antenna element in BS side. Moreover, we can also conclude that of the three interpolation methods, the Wiener interpolation has the best system’s performance.
Keywords
MIMO-OFDM, SFBC, Wiener-Hop interpolation, Sinc interpolation, Linear interpolation, spatial correlation
Article Details
References
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[13] Kim, J., Park, J., Member, S., Hong, D. (2005); Performance Analysis of Channel Estimation in OFDM Systems, IEEE 60th Vehicular Technology Conference, 2004,12(1), 60–62.
[14] Nasreddine, M., Bechir, N., Hakimiand, W., & Ammar, M. (2014); Channel Estimation for Downlink LTE System Based on LAGRANGE Polynomial Interpolation, ICWMC 2014: The Tenth International Conference on Wireless and Mobile Communications, 65–69.
[15] Schanze, T. (1995); Sinc interpolation of discrete periodic signals; IEEE Transactions on Signal Processing, 43(6), 1502–1503. doi:10.1109/78.388863.
[16] Li du and Louis Scharf, (1990); Wiener Filters for Interpolation and Extrapolation, Published in: 1990 Conference Record Twenty-Fourth Asilomar Conference on Signals, Systems and Computer.
[2] Nga Nguyen, Bach Tran, Quoc Khuong Nguyen, Van Duc Nguyen, Byeungwoo Jeon; An Investigation of the Spatial Correlation Influence on Coded MIMO-OFDM system; proceeding of international conference of IMCOM 2014.
[3] Nguyen, T. Nga., Nguyen, V. D. (2016); Research article, A performance comparison of the SCM and the Orening channel modeling method for MIMO-OFDMA systems, (October), 3123–3138. https://doi.org/10.1002/wcm
[4] Nga Nguyen T., Van Duc Nguyen, Byeungwoo Jeon, Nguyen Quy Sy; An Investigation of the Spatial Correlation Influence on Coded MIMO-OFDMA System Performance, proceeding of international conference of IMCOM 2018.
[5] Liang H.; Performance of space-frequency block codes in 3GPP long term evolution; IEEE Transactions on Vehicular Technology 2015; 64(5): 1848–1855. ISSN: 0018–9545.
[6] Jiang Y, Varanasi MK, Li J.; Performance Analysis of ZF and MMSE Equalizers for MIMO System; An In-Depth Study of the High SNR Regime; IEEE Transactions on Information Theory 2011, 2008–2026.
[7] Nguyen Van Duc, Vu Van Yem, Dao Ngoc Chien, Nguyen Quoc Khuong, Nguyen Trung Kien; Digital Communication Technique, pp. 45-59, 12/2006.
[8] Alan V. Oppenheim and Ronald W. Schafer; Discrete Time signal processing; chapter 7, pp. 473-475, Prentice Hall, 1999.
[9] S. Hayking; Adaptive Filter Theory; Prentice Hall, 1986, USA.
[10] X. Dong, W.-S. Lu, A.C.K. Soong; Linear interpolation in pilot symbol assisted channel estimation for OFDM; IEEE Trans. Wirel. Commun., vol. 6, no. 5, pp. 1910-1920, 2007.
[11] Hajizadeh, F. R., Mohamedpor, S. K., & Tarihi, T. M. R. (2010); Channel Estimation in OFDM System Based on the Linear Interpolation, FFT and Decision Feedback, 484–488, 18th Telecommunications forum TELFOR 2010.
[12] Zhang, X., & Yuan, Z. (n.d.); The Application of Interpolation Algorithms in OFDM Channel Estimation, ijssst, Vol17, No-38, paper11, pp. 1–5. https://doi.org/10.5013/IJSSST.a.17.38.11.
[13] Kim, J., Park, J., Member, S., Hong, D. (2005); Performance Analysis of Channel Estimation in OFDM Systems, IEEE 60th Vehicular Technology Conference, 2004,12(1), 60–62.
[14] Nasreddine, M., Bechir, N., Hakimiand, W., & Ammar, M. (2014); Channel Estimation for Downlink LTE System Based on LAGRANGE Polynomial Interpolation, ICWMC 2014: The Tenth International Conference on Wireless and Mobile Communications, 65–69.
[15] Schanze, T. (1995); Sinc interpolation of discrete periodic signals; IEEE Transactions on Signal Processing, 43(6), 1502–1503. doi:10.1109/78.388863.
[16] Li du and Louis Scharf, (1990); Wiener Filters for Interpolation and Extrapolation, Published in: 1990 Conference Record Twenty-Fourth Asilomar Conference on Signals, Systems and Computer.