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Block iterative DFE for single carrier modulation

Block iterative DFE for single carrier modulation

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An iterative block decision feedback equaliser (IB-DFE) for single carrier modulation is proposed. Filtering operations are implemented by discrete Fourier transforms (DFTs) which yield a reduced computational complexity, for both filter design and signal processing, when compared to existing DFEs. Moreover, the new IB-DFE operates on blocks of the receive signal, thus allowing the use of error correction codes on the feedback data signal.

Inspec keywords: computational complexity; error correction codes; decision feedback equalisers; signal processing; filtering theory; discrete Fourier transforms; iterative methods

Other keywords: IB-DFE; QPSK transmission; filtering operations; DFT; error correction codes; feedback data signal; single carrier modulation; signal processing; reduced computational complexity; iterative block decision feedback equaliser; discrete Fourier transforms; filter design

Subjects: Integral transforms in numerical analysis; Filtering methods in signal processing; Interpolation and function approximation (numerical analysis); Communication channel equalisation and identification

References

    1. 1)
      • A. Stamoulis , G.B. Giannakis , A. Scaglione . Block FIR decision-feedback equalisers for filterbank precoded transmissions with blind channel estimation capabilities. IEEE Trans. Commun. , 1 , 69 - 83
    2. 2)
      • N. Benvenuto , S. Tomasin . On the comparison between OFDM and single carrier modulation with a DFE using a frequency domain feedforward filter. IEEE Trans. Commun. , 6 , 947 - 955
    3. 3)
      • A.M. Chan , G.W. Wornell . A class of block-iterative equalizers for intersymbol interference channels: fixed channel results. IEEE Trans. Commun. , 11 , 1966 - 1976
    4. 4)
      • G.K. Kaleh . Channel equalization for block transmission systems. IEEE J. Sel. Areas Commun. , 1 , 110 - 121
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