Noncoherent demodulator for PPM-UWB radios

Liuqing Yang, Ananthram Swami

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

2 Scopus citations

Abstract

Low-duty-cycle Ultra-wideband (UWB) radios have the potential to provide low-probability of detection (LPD) communications with low-power and low-complexity implementation. Pulse position modulation (PPM) is a prevalent scheme for UWB radios since it can further lower the transmitter complexity by avoiding pulse negation. However, the position shifts of impulse-like UWB waveforms, together with the severe frequency-selectivity of the propagation channels, aggravate the difficulty and complexity of timing synchronization and channel estimation. To circumvent both of these challenging tasks, we develop a differential encoder and its corresponding noncoherent demodulator for PPM-UWB signals. Relying on integrate-and-dump operations of "dirty" templates, our designs are operational when the timing offset and channel information both remain unknown.

Original languageEnglish (US)
Title of host publication2006 IEEE International Conference on Acoustics, Speech, and Signal Processing - Proceedings
PagesIV501-IV504
StatePublished - 2006
Externally publishedYes
Event2006 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP 2006 - Toulouse, France
Duration: May 14 2006May 19 2006

Publication series

NameICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
Volume4
ISSN (Print)1520-6149

Other

Other2006 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP 2006
CountryFrance
CityToulouse
Period5/14/065/19/06

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