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Convergence of iterative decoding without channel estimation

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2 Author(s)
Lampe, L. ; Dept. of Electr. & Comput. Eng., British Columbia Univ., BC, Canada ; Schober, R.

Iterative decision-feedback (DFB) differential demodulation (DFDM) has recently been introduced for low-complexity noncoherent detection. The convergence analysis of this iterative decoding scheme is complicated since hard-decision decoding is involved. We develop an equivalent iterative decoder model which lends itself to a convergence study and as such constitutes a powerful tool for system design and analysis. Furthermore, we propose a modification of iterative DFDM which significantly improves convergence and hence power efficiency.

Published in:

Personal, Indoor and Mobile Radio Communications, 2004. PIMRC 2004. 15th IEEE International Symposium on  (Volume:2 )

Date of Conference:

5-8 Sept. 2004