Full-duplex fiber-to-the-X(FTTX) has been the trend of access network.Plastic optical fiber(POF) was a low-cost solution for optical access network.However,POF has the feature of narrowband with high mode dispersion.In order to overcome these shortcomings and increase band utilization and dispersion tolerance in optical access network,Adaprtive bit power allocation of OFDM has been introduced,and high bandwidth efficiency of OFDM was used in optical access network.Moreover,bit error rate was reduced too.In ...