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Multilevel codes for PSK signaling over the Rayleigh fading channel
(1992)
In this research we investigate the application of multilevel codes to the Rayleigh fading channel, the modulation form at being the MPSK constellation. The first part of the study reveals that effectively twice the diversity ...
Robust tree coding combined with harmonic scaling of speech
(1992)
Efficient speech coders using tree coding combined with harmonic scaling are designed at the rates of 6.4 kilobits/sec (kbps) and 4.8 kbps. A time domain harmonic scaling algorithm (TDHS) is used to compress input speech ...