An Adaptive LMS Channel Estimation Method for LTE SC-FDMA Systems

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Provided by: The International Journals of Engineering & Sciences (IJENS)
Topic: Networking
Format: PDF
3rd Generation Partnership Project (3GPP) Long Term Evolution (LTE) uses Single Carrier-Frequency Division Multiple Access (SC-FDMA) in uplink transmission and Orthogonal Frequency Division Multiple Access (OFDMA) scheme for the downlink. One of the most important challenges for a transceiver design is Channel Estimation (CE) and equalization. In this paper, a training based Least Mean Square (LMS) CE method is investigated for a LTE SC-FDMA system. This method can avoid the ill-conditioned Least Square (LS) problem. In addition, this CE method uses adaptive estimator which is able to update parameters of the estimator continuously.
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