Polynomial ambiguity resistant precoders: Theory and applications in ISI/multipath cancellation

In this paper, precoding techniques are studied for combating the intersymbol interference (ISI)/multipath effects in communication systems. We introduce a new type-precoder which we term thepolynomial ambiguity resistant (PAR) precoder for its ability to resist signal distortion induced by finite i...

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Veröffentlicht in:Circuits, systems, and signal processing Jg. 19; H. 2; S. 71 - 98
Hauptverfasser: Xia, Xiang-Gen, Liu, Hui
Format: Journal Article
Sprache:Englisch
Veröffentlicht: Heidelberg Springer 01.01.2000
Springer Nature B.V
Schlagworte:
Electrical and electronic components, instruments and techniques
Exact sciences and technology
Instruments, apparatus, components and techniques common to several branches of physics and astronomy
Physics
Signal processing electronics
FIR filters
Algorithms
Intersymbol interference
Pulse response
Modulation
Bandwidth
Resists
Receivers
Theoretical study
Multipath propagation
Equalization
Signal distortion
ISSN:0278-081X, 1531-5878
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Zusammenfassung:In this paper, precoding techniques are studied for combating the intersymbol interference (ISI)/multipath effects in communication systems. We introduce a new type-precoder which we term thepolynomial ambiguity resistant (PAR) precoder for its ability to resist signal distortion induced by finite impulse response (FIR) channels. In particular, the precoder allows a receiver to identify an input signal without knowing the channel characteristics at the expense of a minimum amount of bandwidth increase. A family of such precoders, which is linear (no modulo operations), channel independent, and modulation pattern preserving (except for some occasional 0 symbols), is presented. Also presented is a closed-form algorithm that can simultaneously identify the input signals and zero-forcing equalizers.[PUBLICATION ABSTRACT]
Bibliographie:SourceType-Scholarly Journals-1
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ISSN:0278-081X
1531-5878
DOI:10.1007/BF01212464