Title :
Multiple-input turbo equalization over time-varying frequency selective channels
Author :
Laot, C. ; Le Bidan, R. ; Leroux, D.
Author_Institution :
ENST Bretagne, Brest, France
Abstract :
This paper deals with a low complexity receiver scheme for high order modulation where multiple-input equalization and channel decoding are jointly optimized in an iterative process. Initially proposed in a single-input version the turbo-equalizer is extended for multiple-input. Channel diversity allows performance of the turbo-equalizer to be improved in severe frequency selective environment. Results are presented for 4-QAM and 16-QAM modulations over multipath Rayleigh fading channels.
Keywords :
Rayleigh channels; channel coding; diversity reception; equalisers; multipath channels; optimisation; quadrature amplitude modulation; time-varying channels; turbo codes; QAM; channel decoding; channel diversity; high order modulation; iterative process; low complexity receiver scheme; multipath Rayleigh fading channel; multiple input turbo equalization; optimization; time-varying frequency selective channel; turbo equalizer performance improvement; Decoding; Signal to noise ratio;
Conference_Titel :
Signal Processing Conference, 2002 11th European
Conference_Location :
Toulouse
