Irreducible BER of COFDM on an IIR channel

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Irreducible BER of COFDM on an IIR channel

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The author considers the performance of coded orthogonal frequency division multiplexing (COFDM) on an infinite impulse response channel, and gives equations for intersymbol and interchannel interference (ISI and ICI). The trade-off between code rate and guard period length is considered, and it is shown that for optimum results both coding and a guard period are required. However, the advantage of coding at low redundancy is small.

Inspec keywords: mobile radio; frequency division multiplexing; error statistics; telecommunication channels; adjacent channel interference; digital radio; intersymbol interference

Other keywords: ICI; intersymbol interference; coded orthogonal FDM; ISI; code rate; bit error rate; infinite impulse response channel; interchannel interference; COFDM; irreducible BER; frequency division multiplexing; IIR channel; guard period length

Subjects: Communication switching; Electromagnetic compatibility and interference; Information theory; Mobile radio systems; Codes

References

    1. 1)
      • Burr, A.G.: `Optimised coded modulation techniques for Rayleigh fading channels', Proc. COST 231/227 Joint Workshop on ‘Future personalcommunications’, 19–22 April 1995, Kluwer, Florence.
    2. 2)
      • A.A.M. Saleh , R.A. Valenzuela . A statistical model for indoor multipath propagation. IEEE J. Sel. Areas Commun. , 128 - 137
    3. 3)
      • W.Y. Zou , Y. Wu . COFDM: an overview. IEEE Trans. Broadcasting , 1 , 1 - 8
http://iet.metastore.ingenta.com/content/journals/10.1049/el_19960134
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