Bit-Interleaved Coded Modulation
Foundations and Trends in Communications and Information Theory
On the capacity of BICM with QAM constellations
Proceedings of the 2009 International Conference on Wireless Communications and Mobile Computing: Connecting the World Wirelessly
Mapping rearrangement for HARQ based on low-order modulation
IEEE Transactions on Communications
Transmit precoding for MIMO systems with partial CSI and discrete-constellation inputs
ICC'09 Proceedings of the 2009 IEEE international conference on Communications
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This paper investigates linear precoding for bit-interleaved coded modulation (BICM) on additive white Gaussian noise (AWGN) channels. Concatenating a linear precoder as an inner encoder with an outer (convolutional) encoder produces a powerful code with a limited decoding complexity. Linear precoders are examined and optimized for two scenarios: using (i) a noniterative decoding strategy and (ii) an iterative decoding strategy under a perfect feedback assumption. The precoder design is based on an information-theoretical approach, on the one hand, and a pair-wise error probability (PEP) analysis, on the other hand. Both approaches render convenient precoder design rules. For a binary phase-shift keying (BPSK) signal set, the optimal precoders that result from these rules are also derived. Numerical results confirm the analytical findings and simulations illustrate the effectiveness of the approach.