An Efficient Concatenation Decoding Scheme of Polar Codes With Outer Reed-Solomon Codes

This letter introduces an efficient concatenation scheme using a novel discriminative mechanism for polar codes with Reed-Solomon (RS) codes. An efficient RS-polar soft information exchange process is proposed, employing the novel discriminative mechanism to reduce the number of RS codewords requiring decoding. Additionally, a low-complexity error and erasure decoding (EED) algorithm is utilized for RS codes in the scheme. These two measures collectively reduce overall complexity. Simulation results show that without compromising decoding performance, for RS-polar (8192,2732) scheme, at a signal to noise ratio of 2.0 dB, the proposed scheme reduces the average number of decoded RS codewords by 70.66%.