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Channel estimation with circularly slipping window in MIMO-OFDM systems

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Journal of Electronics (China)

Abstract

Channel estimation is very important for MIMO (Multiple Input Multiple Output) OFDM (Orthogonal Frequency Division Multiplexing) systems, but its precision is reduced due to the noise in channel. In this letter, circularly slipping window is introduced to resist the noise. It can be proved by simulation that with the same channel model, optimal slipping window length is the same with different vehicle speed. MSE (Minimum Square Error) of channel is greatly reduced with circularly slipping window, and performance of the system is closed to that with correct channel estimation.

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Authors and Affiliations

  1. Dept of Electronic Engineering, Tsinghua Univ., Beijing, 100084, China

    Ge Qihong Ph.D. (male), Sun Zhi & Yang Huazhong

Authors
  1. Ge Qihong Ph.D.
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  2. Sun Zhi
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  3. Yang Huazhong
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Correspondence to Ge Qihong Ph.D..

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Ge, Q., Sun, Z. & Yang, H. Channel estimation with circularly slipping window in MIMO-OFDM systems. J. of Electron.(China) 23, 929–932 (2006). https://doi.org/10.1007/s11767-006-0018-4

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  • DOI: https://doi.org/10.1007/s11767-006-0018-4

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