A novel shaping scheme for PAPR reduction in single-carrier modulation

A novel PAPR shaping technique for single carrier transmission with high spectral efficiency is presented. This technique applies puncturing of error correction redundancy bits to achieve a desired Markovian symbol transmission probability distribution, which avoids symbol sequences with high peak values. To measure the overall gain of a peak reduction transmission, a link-gain metric, which takes into account both PAPR reduction and average energy loss, is presented. For a 16-QAM system with transmission rate of 3 bits/symbol and a SRRC pulse shape with roll-off factor 0.1 and duration of 4 symbols, a link gain of 1.87 dB is demonstrated using a pragmatic binary Turbo code for error correction. The technique can be used to improve any single carrier communication link limited by the PA peak power. It is in particular attractive to satellite communications by maximizing the rate of a given transponder, or given terminal hardware.