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MIMO OFDM Systems Based on the Optimal Fractional Fourier Transform

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Abstract

Transmission over wireless time-varying channels can lead to inter-carrier interference (ICaI) and inter-cell interference (ICeI) in multiple-input multiple-output orthogonal frequency division multiplexing systems. In this paper, it is considered that each cell can search respective optimal order chirp basis to replace exponential basis to suppress ICaI, and optimal interference restricted combination equalizer based on the Fractional Fourier Transform is proposed to suppress ICeI. Furthermore, a novel equivalent channel estimation algorithm is used to improve system simulation efficiency. The simulation results demonstrate the effectiveness of proposed approach.

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Authors and Affiliations

  1. College of Mathematics, Sichuan University, 610064, Chengdu, China

    Huiqi Wang & Hong Ma

Authors
  1. Huiqi Wang
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  2. Hong Ma
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Corresponding author

Correspondence to Huiqi Wang.

Additional information

Foundation Item: Supported by National Natural Science Foundation of China (10571127); Key Program of the National Natural Science Foundation of China (10731050).

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Wang, H., Ma, H. MIMO OFDM Systems Based on the Optimal Fractional Fourier Transform. Wireless Pers Commun 55, 265–272 (2010). https://doi.org/10.1007/s11277-009-9800-6

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  • DOI: https://doi.org/10.1007/s11277-009-9800-6

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