The model of the MGCDMA system using selective mapping （SLM） is analyzed and the upper bound of the peak-average power ratio （PAPR） in the system is derived. For the PAPR distribution and the connection between th...The model of the MGCDMA system using selective mapping （SLM） is analyzed and the upper bound of the peak-average power ratio （PAPR） in the system is derived. For the PAPR distribution and the connection between the PAPR and the number of users in the MC-CDMA system using SLM, the simulations are given based on several phase sequences in SLM. The simulation results slow that when randdom sequences, Shapiro-Rudin sequences or Golay complementary sequences are selected as the phase sequences in SLM, SLM has obvious effect on the PAPR reduction in MC-CDMA system and the system PAPR nearly maintains constant as the number of users varies. The maximal PAPR in the MC-CDMA system using SLM（10 ttsers）is about 6.3 which is 3.3 less than that in the common MC-CDMA system （without SLM）.展开更多
文摘The model of the MGCDMA system using selective mapping （SLM） is analyzed and the upper bound of the peak-average power ratio （PAPR） in the system is derived. For the PAPR distribution and the connection between the PAPR and the number of users in the MC-CDMA system using SLM, the simulations are given based on several phase sequences in SLM. The simulation results slow that when randdom sequences, Shapiro-Rudin sequences or Golay complementary sequences are selected as the phase sequences in SLM, SLM has obvious effect on the PAPR reduction in MC-CDMA system and the system PAPR nearly maintains constant as the number of users varies. The maximal PAPR in the MC-CDMA system using SLM（10 ttsers）is about 6.3 which is 3.3 less than that in the common MC-CDMA system （without SLM）.
