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Combined turbo equalization and decoding for frequency selective fading channels

Stankovic, L. and Clarke, P. and Honary, B. (2003) Combined turbo equalization and decoding for frequency selective fading channels. In: 9th International Conference on HF Radio Systems and Techniques, 2003, 2003-06-23 - 2003-06-26, Bath.

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Abstract

RF sky wave transmissions undergo multipath fading due to propagation through the ionospheric layers. The HF channel is time varying and can be modeled by a tapped delay line of independent complex fading processes each exhibiting correlated fading characteristics specified in the ITU-R recommendation. A practical configuration for a turbo equalizer to combat the effects of intersymbol interference (ISI) in the HF channel, consisting of a soft decision feedback equalizer (SDFE), an interference canceller and a turbo decoder, all being SISO (soft in soft out) processes, is presented. The tap coefficients of the interference canceller filters are updated at each iteration with extrinsic information from the previous decoding operation

Item type: Conference or Workshop Item (Paper)
ID code: 38557
Keywords: decision feedback equalisers , turbo codes , time-varying filters , time-varying channels , multipath channels , iterative decoding , ionospheric electromagnetic wave propagation , intersymbol interference, fading channels , interference suppression, delay lines , combined turbo equalization, decoding, frequency, selective fading, Electrical engineering. Electronics Nuclear engineering
Subjects: Technology > Electrical engineering. Electronics Nuclear engineering
Department: Faculty of Engineering > Electronic and Electrical Engineering
Related URLs:
    Depositing user: Pure Administrator
    Date Deposited: 19 Mar 2012 16:07
    Last modified: 17 Jul 2013 15:31
    URI: http://strathprints.strath.ac.uk/id/eprint/38557

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