Hence these decoders improve the iterative decoding process on finite length graphs and have {HEAD ~ the potential} to outperform {TAIL ~ the standard floating point BP decoder} in the error floor region 
to outperform
Hence these decoders improve the iterative decoding process on finite length graphs and have { HEAD ~ the potential } to outperform { TAIL ~ the standard floating point BP decoder } in the error floor region
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH