Polar-Coded Modulaton
Mathis Seidl, Andreas Schenk, Clemens Stierstorfer, Johannes B. Huber
TL;DR
This paper introduces a unified framework for designing and optimizing polar codes with multilevel modulation schemes like MLC and BICM, emphasizing channel polarization and optimal labeling.
Contribution
It presents a novel characterization of channel polarization and rules for optimal labeling in polar-coded modulation schemes, unifying binary polar coding with $2^m$-ary modulation.
Findings
Improved error performance on AWGN channel
Unified approach for polar coding and multilevel modulation
Optimal labeling rules derived for polar-coded schemes
Abstract
A framework is proposed that allows for a joint description and optimization of both binary polar coding and -ary digital pulse-amplitude modulation (PAM) schemes such as multilevel coding (MLC) and bit-interleaved coded modulation (BICM). The conceptual equivalence of polar coding and multilevel coding is pointed out in detail. Based on a novel characterization of the channel polarization phenomenon, rules for the optimal choice of the labeling in coded modulation schemes employing polar codes are developed. Simulation results regarding the error performance of the proposed schemes on the AWGN channel are included.
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Taxonomy
TopicsAdvanced Wireless Communication Techniques · PAPR reduction in OFDM · Error Correcting Code Techniques