Generalized differential encoding: A nonlinear signal processing framework

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations

Abstract

Encoding of communication signals compensates for phase distortions introduced by imperfect local oscillators, fading, and multipath effects. Differential encoding is generalized in this paper using a nonlinear transformation called multi-lag High-order Instantaneous Moment (ml-HIM). The ml-HIM decoder is capable of removing not only constant phase ambiguity, but also Doppler frequency, Doppler rate, and even higher-order phase distortions. The multiple lags present in the ml-HIM are exploited to improve system performance. Differential encoding is also generalized to non-constant modulus constellations such as M-ary QAM and AM-PM.

Original languageEnglish (US)
Title of host publicationIEEE Signal Processing Workshop on Signal Processing Advances in Wireless Communications, SPAWC
PublisherIEEE
Pages153-156
Number of pages4
StatePublished - Dec 1 1997
EventProceedings of the 1997 1st IEEE Signal Processing Workshop on Signal Processing Advances in Wireless Communications, SPAWC'97 - Paris, Fr
Duration: Apr 16 1997Apr 18 1997

Other

OtherProceedings of the 1997 1st IEEE Signal Processing Workshop on Signal Processing Advances in Wireless Communications, SPAWC'97
CityParis, Fr
Period4/16/974/18/97

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