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Blind CFO estimation for OFDM-IDMA system in Rayleigh fading multipath channel

Yasamine Zrelli 1 Sébastien Houcke 2, 3 Charlotte Langlais 4, 5 Mahmoud Ammar 6
1 Lab-STICC_UBO_CACS_COM
Lab-STICC - Laboratoire des sciences et techniques de l'information, de la communication et de la connaissance, UBO - Université de Brest
3 Lab-STICC_TB_CACS_COM
Lab-STICC - Laboratoire des sciences et techniques de l'information, de la communication et de la connaissance
5 Lab-STICC_TB_CACS_IAS
Lab-STICC - Laboratoire des sciences et techniques de l'information, de la communication et de la connaissance
Abstract : We address the problem of carrier frequency offset (CFO) in Orthogonal Frequency Division Multiplexing (OFDM) communications systems in the context of Interleaved Division Multiple Access (IDMA).We propose a technique to adapt a method of blind CFO estimation, called CFO estimation-Syndrome Function Minimization (C-SFM), to the context of a system combining IDMA and OFDM where a quasi-static Rayleigh fading multipath channel is considered. Performance in terms of Mean Squared Error (MSE) of carrier frequency offset is studied for a different number of users. In order to evaluate the robustness of the C-SFM method, we compare the performance of OFDM-IDMA system using C-SFM technique with that of a perfect synchronous system. Our results show that, for high Eb/N0, the two systems have the same performance.
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https://hal.univ-brest.fr/hal-00737424
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Submitted on : Monday, October 1, 2012 - 5:10:48 PM
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Yasamine Zrelli, Sébastien Houcke, Charlotte Langlais, Mahmoud Ammar. Blind CFO estimation for OFDM-IDMA system in Rayleigh fading multipath channel. 2nd International Conference on Information Processing and Wireless Systems (IP-WiS), Mar 2012, Sousse, Tunisia. pp.1-6. ⟨hal-00737424⟩

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