  By constructing chemical reaction networks (CRNs), this paper proposes a
method of synthesizing polar decoder using belief propagation (BP) algorithm
and successive cancellation (SC) algorithm, respectively. Theoretical analysis
and simulation results have validated the feasibility of the method. Reactions
in the proposed design could be experimentally implemented with DNA strand
displacement reactions, making the proposed polar decoders promising for wide
application in nanoscale devices.
