  Discrete-modulated continuous-variable quantum key distribution protocols are
promising candidates for large-scale deployment due to the large technological
overlap with deployed modern optical communication devices. The security of
discrete modulation schemes has previously analyzed in the ideal detector
scenario in the asymptotic limit. In this work, we calculate asymptotic key
rates against collective attacks in the trusted detector noise scenario. Our
results show that we can thus cut out most of the effect of detector noise and
obtain asymptotic key rates similar to those had we access to ideal detectors.
