[Zurück]

C. Novak, G. Lechner, G. Matz:
"MIMO-BICM with imperfect Channel State Information: EXIT Chart Analysis and LDPC Code Optimization";
Poster: Asilomar Conference on Signals, Systems, and Computers, Pacific Grove, CA, USA; 26.10.2008 - 29.10.2008; in: "Proc. Fortieth Annual Asilomar Conference on Signals Systems and Computers", (2008).

We investigate MIMO systems employing bit-interleaved
coded modulation and iterative decoding with
imperfect channel estimates. An optimum soft demodulator
for this scenario with i.i.d. Rayleigh fading was recently
proposed by Sadough et al. We extend the optimum demodulator
to correlated channel models and provide a code independent
performance comparison of this demodulator
and the conventional (mismatched) demodulator for different
symbol mappings by means of EXIT charts. Furthermore,
we describe optimized LDPC code designs for these
demodulators and verify the EXIT chart results in terms of
bit error rate simulations.

http://publik.tuwien.ac.at/files/PubDat_171189.pdf