Iterative decoding of parallel and serial concatenated single parity check product codes
An efficient, iterative soft in soft out decoding scheme is employed for the parallel and serially concatenated single parity check (SPC) product codes, which has very low complexity, requiring only two addition equivalent operations per information bit. For a rate 0.8637 of parallel concatenated SPC product code, a performance of BER=10/sup 5/ at E/sub b//N/sub 0/=3.66 dB can be achieved using this decoding scheme, which is within 1 dB from the Shannon limit.