Efficient synchronization-demodulation for UWB ad hoc access: Performance analysis and comparisons with RAKE

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1 Scopus citations

Abstract

Synchronization is a performance-critical factor in all communication systems, but becomes particularly challenging in ultra-wideband (UWB) radios due to the ultra-short length of the transmitted pulses. Presence of severe inter-symbol interference (ISI) and multi-user interference (MUI) render the synchronization task even more difficult. The present paper deals with a blind synchronization and demodulation scheme which relies on intermittent transmission of nonzero mean symbols. This transmission pattern enables MUI-and ISI-resilient timing acquisition via energy detection and low-complexity demodulation by correlating the received waveform with a synchronized aggregate template (SAT). The resultant SAT receiver offers distinct advantages over the traditional RAKE and has remarkably low-complexity. Analytical performance evaluation of the novel timing estimator and the SAT demodulator is provided along with comparisons with the RAKE receiver for a single user link without ISI. Simulations confirm the analytical results and corroborate the high potential SAT-based UWB modems have for deployment.

Original languageEnglish (US)
Pages900-904
Number of pages5
DOIs
StatePublished - Dec 1 2005
Event2005 IEEE 6th Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2005 - New York, NY, United States
Duration: Jun 5 2005Jun 8 2005

Other

Other2005 IEEE 6th Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2005
CountryUnited States
CityNew York, NY
Period6/5/056/8/05

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    Luo, X., & Giannakis, G. B. (2005). Efficient synchronization-demodulation for UWB ad hoc access: Performance analysis and comparisons with RAKE. 900-904. Paper presented at 2005 IEEE 6th Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2005, New York, NY, United States. https://doi.org/10.1109/SPAWC.2005.1506270