Title :
Ultra-wideband range estimation: Theoretical limits and practical algorithms
Author :
Guvenc, Ismail ; Gezici, Sinan ; Sahinoglu, Zafer
Author_Institution :
DoCoMo Commun. Labs. USA, Inc., Palo Alto, CA
Abstract :
The high time resolution of ultra-wideband (UWB) signals enables wireless devices to perform accurate range estimation. In order to realize UWB systems with accurate ranging capabilities, both theoretical limits on range estimation and practical algorithms that approach those limits should be investigated. This paper provides a survey of various UWB ranging algorithms and discusses their performance and complexity tradeoffs. In addition, theoretical limits on range estimation are discussed in terms of Cramer-Rao and Ziv-Zakai lower bounds.
Keywords :
estimation theory; matrix algebra; ultra wideband communication; Cramer-Rao lower bound; UWB signal; Ziv-Zakai lower bound; ultra-wideband range estimation; wireless devices; Bandwidth; Constraint theory; Estimation theory; Laboratories; Maximum likelihood estimation; Multipath channels; Signal resolution; Space vector pulse width modulation; USA Councils; Ultra wideband technology; Cramer-Rao lower bound (CRLB); Ultra-wideband (UWB); Ziv-Zakai lower bound (ZZLB); ranging; time-of-arrival (TOA) estimation;
Conference_Titel :
Ultra-Wideband, 2008. ICUWB 2008. IEEE International Conference on
Conference_Location :
Hannover
Print_ISBN :
978-1-4244-2216-6
Electronic_ISBN :
978-1-4244-1827-5
DOI :
10.1109/ICUWB.2008.4653424
