Editor ====== 1) channel model raleight channel 2) OFDM 10 carriers -> OFDMA 3) target of BER 10e-2 explain that is for uncoded modulation, PER target of 1e-2 is what matter for coded modulation Review 1 ======== 1) typo all corrected/checked 2) avoid spliting SE in two parts algo -> this's a problem publication: we have to split has it does not hold in one column 3) comparison of PFC with other encoding methods ??? 4) abstart clarification add that performance improvement is for low order modution. about low error rate scenario, I don't agree, PER of 1e-2 on coded modulation is standard performance target in wireless communications. Review 2 ======== 1) introductuion need to be accurate. missing some knowledge basis ??? 2) get ride of SE -> no 3) comparison with "decoding the golden space-time trellis coded modulation" ???