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Spatial-frequency channel and DOA joint blind estimator for MC-CDMA systems

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Journal of Electronics (China)

Abstract

The MC-CDMA (Multicarrier Code Division Multiple Access) technique is known to be appropriate for high-data-rate wireless communications due to its robustness to multipath fading and its capability of handling high data rates with a simple one-tap equalizer. This paper investigates a uniform linear antenna array at the base station for macrocell MC-CDMA systems in a frequency-selective fading channel environment, and develops a blind joint estimator for the spatial-frequency channel and the DOA (Direction-Of-Arrival). By constructing the matrix including both spatial-frequency channel and DOA information, and performing eigen decomposition on it, the closed-form solution of spatial-frequency channels and DOAs for all active users within the macrocell can be obtained. The overall performance using this novel scheme is demonstrated by extensive computer simulations.

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Authors and Affiliations

  1. Institute of Information Engineering, Xi’an Jiaotong University, 710049, Xi’an

    Wu Xiaojun, Yin Qinye, Zhao Zheng, Feng Aigang & Zhang Jianguo

Authors
  1. Wu Xiaojun
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  2. Yin Qinye
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  3. Zhao Zheng
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  4. Feng Aigang
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  5. Zhang Jianguo
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Additional information

Partially supported by the National Natural Science Foundation (No.69872029) and National 863 Project (Log: 863-317-03-01-05-20) of China

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Wu, X., Yin, Q., Zhao, Z. et al. Spatial-frequency channel and DOA joint blind estimator for MC-CDMA systems. J. of Electron.(China) 19, 225–232 (2002). https://doi.org/10.1007/s11767-002-0042-y

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  • DOI: https://doi.org/10.1007/s11767-002-0042-y

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