Cramér-Rao lower bounds for the synchronization of UWB signals

Authors:
Jian Zhang;Rodney A. Kennedy;Thushara D. Abhayapala
Affiliations:
National ICT Australia (NICTA) and the Department of Telecommunications Engineering, Research School of Information Sciences and Engineering, The Australian National University, Canberra, Australi ...;National ICT Australia (NICTA) and the Department of Telecommunications Engineering, Research School of Information Sciences and Engineering, The Australian National University, Canberra, Australi ...;National ICT Australia (NICTA) and the Department of Telecommunications Engineering, Research School of Information Sciences and Engineering, The Australian National University, Canberra, Australi ...
Venue:
EURASIP Journal on Applied Signal Processing
Year:
2005

Citing 9
Cited 5

Spread spectrum communications; vols. 1-3

Spread spectrum communications; vols. 1-3
Detection, Estimation, and Modulation Theory: Radar-Sonar Signal Processing and Gaussian Signals in Noise

Detection, Estimation, and Modulation Theory: Radar-Sonar Signal Processing and Gaussian Signals in Noise
Digital Communication Receivers: Synchronization, Channel Estimation, and Signal Processing

Digital Communication Receivers: Synchronization, Channel Estimation, and Signal Processing
Estimation of multipath parameters in wireless communications

IEEE Transactions on Signal Processing
On the performance limits of data-aided synchronization

IEEE Transactions on Information Theory
Performance degradation due to code tracking errors in spread-spectrum code-division multiple-access systems

IEEE Journal on Selected Areas in Communications
A maximum likelihood approach for estimating DS-CDMA multipath fading channels

IEEE Journal on Selected Areas in Communications
Channel tracking for RAKE receivers in closely spaced multipath environments

IEEE Journal on Selected Areas in Communications
The effects of timing jitter and tracking on the performance of impulse radio

IEEE Journal on Selected Areas in Communications

Time-of-arrival estimation in probability-controlled generalized CDMA systems

EURASIP Journal on Advances in Signal Processing
Performance capabilities of long-range UWB-IR TDOA localization systems

EURASIP Journal on Advances in Signal Processing
Asynchronous two-way ranging using Tomlinson-Harashima precoding and UWB signaling

EURASIP Journal on Wireless Communications and Networking
Ranging energy optimization for robust sensor positioning based on semidefinite programming

IEEE Transactions on Signal Processing
Reduced-rank shift-invariant technique and its application for synchronization and channel identification in UWB systems

EURASIP Journal on Wireless Communications and Networking

Quantified Score

Hi-index	0.00

Visualization

Abstract

We present Cramér-Rao lower bounds (CRLBs) for the synchronization of UWB signals which should be tight lower bounds for the theoretical performance limits of UWB synchronizers. The CRLBs are investigated for both single-pulse systems and time-hopping systems in AWGN and multipath channels. Insights are given into the relationship between CRLBs for different Gaussian monocycles. An approximation method of the CRLBs is discussed when nuisance parameters exist. CRLBs in multipath channels are studied and formulated for three scenarios depending on the waymultipath interference is treated. We find that a larger number of multipaths implies higher CRLBs and inferior performance of the synchronizers, and multipath interference on CRLBs cannot be eliminated completely except in very special cases. As every estimate of time delay could not be perfect, the least influence of the synchronization error on the performance of receivers is quantified.