Cooperative polar code constructions over multi-channels

Abstract

Cooperative constructions of polar codes suitable to multi-channels (parallel channels) is presented in this paper. The constructions consist of several polar codes as mother codes and re-polarization processes, which unify all mother codes into one scheme. Based on our approach, any arbitrary length can be achieved by adjusting the number of processes.

Moreover, a cooperative decoding algorithm for the unified scheme, which decodes all mother codes in parallel and spreads the decoding results within each mother code from itself to the others, is provided as well. Simulation results show that the FER of the proposed length-compatible scheme even outperforms a conventional polar code with limited length and similar rate.