Impact of SNR estimation error on turbo code with high-order modulation

@article{Sun2004ImpactOS,
  title={Impact of SNR estimation error on turbo code with high-order modulation},
  author={Minying Sun and Yuan Ping Li and Sumei Sun},
  journal={2004 IEEE 59th Vehicular Technology Conference. VTC 2004-Spring (IEEE Cat. No.04CH37514)},
  year={2004},
  volume={3},
  pages={1320-1324 Vol.3}
}
The sensitivity of turbo-code performance to SNR estimation error is investigated in high-order modulated systems. The estimated SNR is applied in bit-metric calculation for a turbo decoder. We analyze the roles that the SNR value has played in binary transmission and multi-level transmission and identify the difference which finally leads to the different sensitivity behavior of the turbo decoder in different modulation schemes. Extensive simulation results are presented to demonstrate the… CONTINUE READING