Paper Info
Title
On Spectrum Broadening Of Pre-Coded Faster-Than-Nyquist Signaling
Abstract
The faster-than-Nyquist (FTN) signaling has been of interest in recent research literature, as advances in pre-coding and equalization techniques allow practical reduction of FTN-caused intersymbol interference (ISI). Since the structure of ISI is deterministic in the FTN signaling, a data pre-coder can be used at the FTN transmitter to combat the effects of ISI.In this paper, it is shown that pre-coding an FTN signal can significantly alter and broaden its transmission spectrum. By analyzing the power spectral density of convolutionally pre-coded FTN signals on linear time-invariant channels, we also identify sufficient conditions on the pre-coding coefficients to prevent FTN spectrum broadening. Simulation results for several modulation pulses are presented illustrating a good match between the obtained analytic and numerical results. Since for many practically used modulating pulses, pre-coded FTN transmission suffers from significant spectrum broadening, pre-coding of FTN signals must be handled with care.
Year
DOI
Venue
2010
10.1109/VETECF.2010.5594451
2010 IEEE 72ND VEHICULAR TECHNOLOGY CONFERENCE FALL
Keywords
Field
DocType
Faster-than-Nyquist (FTN) signaling, power spectral density (PSD), spectrum broadening, convolutional data precoding, linear time-invariant (LTI) channel
Transmitter,Intersymbol interference,Convolutional code,Equalization (audio),Computer science,Electronic engineering,Spectral density,Bandwidth (signal processing),Nyquist–Shannon sampling theorem,Precoding
Conference
ISSN
Citations 
PageRank 
1090-3038
5
0.45
References 
Authors
5
2
Name
Order
Citations
PageRank
Yong Jin Kim135925.43
jan bajcsy221921.63