Title :
Mutual information analysis of turbo equalizers for fixed and fading channels
Author :
Peacock, Matthew J M ; Collings, Iain B.
Author_Institution :
Telecommun. Lab., Sydney Univ., NSW, Australia
Abstract :
The paper considers performance and design issues for turbo equalizers. Analytic expressions are derived for the mutual information convergence point of the turbo equalizer. The BER is then found analytically. Results are obtained for both fixed and fading channels, and in conditions of both perfect channel state information as well as unknown estimated channels. Finally, we introduce design rules for adaptive turbo equalizers based on our analysis. The rules give optimal combinations of pilot rate and code puncturing for a range of fading and SNR conditions.
Keywords :
adaptive equalisers; channel estimation; error statistics; fading channels; optimisation; BER prediction; SNR conditions; adaptive turbo equalizers; bit error rate; code puncturing; convergence point; equalizer design rules; fading channels; fixed channels; maximum output mutual information; mutual information analysis; optimization; perfect channel state information; pilot rate; signal-to-noise ratio; Australia; Bit error rate; Channel state information; Convergence; Decoding; Equalizers; Fading; Information analysis; Mutual information; State estimation;
Conference_Titel :
Communications, 2003. ICC '03. IEEE International Conference on
Print_ISBN :
0-7803-7802-4
DOI :
10.1109/ICC.2003.1204577
