Title :
Tight Approximation of the Bit Error Rate for BICM(-ID) Assuming Imperfect CSI
Author :
Godtmann, Susanne ; Lai, I-Wei ; Ascheid, Gerd ; Chiueh, Tzi-Dar ; Meyr, Heinrich
Author_Institution :
Inst. for Integrated Signal Process. Syst., RWTH Aachen Univ., Aachen
fDate :
11/1/2008 12:00:00 AM
Abstract :
In this correspondence, we analytically derive the bit error rate (BER) for bit-interleaved coded modulation (BICM) under the assumption of a temporally correlated flat Rayleigh fading channel. We assume the channel state information (CSI) to be unknown at receiver side and consider a linear minimum mean-squared error (LMMSE) channel estimator that relies on periodically inserted pilot symbols. We give asymptotic results for both non-iterative BICM and BICM with iterative decoding (BICM-ID). Furthermore, we show that the interpretation of the channel estimation error as an SNR degradation holds true in these cases.
Keywords :
Rayleigh channels; channel estimation; correlation methods; error statistics; interleaved codes; iterative decoding; mean square error methods; modulation coding; BICM(-ID); CSI; bit error rate; bit-interleaved coded modulation; channel state information; iterative decoding; linear minimum mean-squared error channel estimator; temporally correlated flat Rayleigh fading channel; Bit error rate; Channel estimation; Channel state information; Degradation; Fading; Feedback; Interleaved codes; Iterative decoding; Modulation coding; State estimation; Bit-interleaved coded modulation (BICM); LMMSE channel estimation; bit-interleaved coded modulation with iterative decoding (BICM-ID); imperfect channel state information (CSI); temporal correlated fading;
Journal_Title :
Wireless Communications, IEEE Transactions on
DOI :
10.1109/T-WC.2008.070752