Please use this identifier to cite or link to this item: https://doi.org/10.1109/VETECS.2010.5493928
Title: Reference phasor based log-likelihood ratios for pilot-symbol-assisted BPSK transmission of LDPC codes over the noncoherent channel
Authors: Mo, E.
Kam, P.Y. 
Issue Date: 2010
Source: Mo, E.,Kam, P.Y. (2010). Reference phasor based log-likelihood ratios for pilot-symbol-assisted BPSK transmission of LDPC codes over the noncoherent channel. IEEE Vehicular Technology Conference : -. ScholarBank@NUS Repository. https://doi.org/10.1109/VETECS.2010.5493928
Abstract: We derive the log-likelihood ratio for iterative decoding of low-density parity-check codes transmitted using binary phase-shift-keying (BPSK) with pilot-symbol-assisted modulation. This is done with the aid of a reference phasor formed from the received pilot signals. We compare our metric with the existing Gaussian metric for differential BPSK transmission and also show that our metric converges to that for coherent BPSK transmission in the limit as the size of the pilot reference set becomes large. Simulation results verify our analysis and study the effects of carrier phase noise and signal-to-noise ratio misestimation on the performance of the metric. © 2010 IEEE.
Source Title: IEEE Vehicular Technology Conference
URI: http://scholarbank.nus.edu.sg/handle/10635/71594
ISBN: 9781424425198
ISSN: 15502252
DOI: 10.1109/VETECS.2010.5493928
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