  Polar codes with Reed-Solomon (RS) kernel have great potential in
next-generation communication systems due to their high polarization rate. In
this paper, we study the polarization characteristics of RS polar codes and
propose two types of partial orders (POs) for the synthesized channels, which
are supported by validity proofs. By combining these partial orders, a Partial
Distance-based Polarization Weight (PDPW) construction method is presented. The
proposed method achieves comparable performance to Monte-Carlo simulations
while requiring lower complexity. Additionally, a Minimum Polarization Weight
Puncturing (MPWP) scheme for rate-matching is proposed to enhance its practical
applicability in communication systems. Simulation results demonstrate that the
RS polar codes based on the proposed PDPW construction outperform the 3rd
Generation Partnership Project (3GPP) NR polar codes in terms of standard code
performance and rate-matching performance.
