This paper presents a novel precoder design for an Orthogonal Frequency Division Multiplexing (OFDM) system using a channel estimator. First, an asymptotically tight approximation of the pairwise error probability (PEP) error with channel estimation error is presented and is shown to improve the existing upper bound of the PEP. Using the proposed approximation, a near-optimal power allocation scheme is derived and investigated and a new precoding scheme is introduced to improve the bit error rate (BER) performance of the receiver assisted by a minimum mean square error (MMSE) channel estimator. Both experimental and theoretical results included in this paper show improvement in the BER performance of a receiver with channel estimators utilizing the introduced precoder and power allocation scheme.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    A Novel Precoder Design for OFDM Receivers in Unknown Fading Channels




    Publication date :

    2008-03-01


    Size :

    3428738 byte





    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



    Cross-Subcarrier Precoder Design for Massive MIMO-OFDM Downlink

    Zhang, Yuxuan / Lu, An-An / Liu, Bingyan et al. | IEEE | 2023


    On Finite-Lag Receivers for Fading Channels

    Prasad, S. / Mahalanabis, A. K. | IEEE | 1974


    Joint Hybrid Precoder and RIS Design for RIS-Aided MIMO-OFDM Systems

    Yu, Shao-Xuan / Lee, Ming-Chun / Kang, Po-Chun et al. | IEEE | 2023