NDLI: Effect and Compensation of Colored Timing Jitter in Pulsed UWB Systems

Content Provider	Springer Nature Link
Author	Ko, C. C. Huang, Lei Poh, Boon Hor
Copyright Year	2006
Abstract	Ultra-wideband (UWB) systems impose a stringent requirement on the jitter performance of the system clock. So far, only the effect of white Gaussian timing jitter has been considered in the literature via numerical simulation. However, practical clocks commonly exhibit colored jitter. In this paper, we first investigate the bit error rate (BER) performance of a single-user binary pulse position modulation UWB system subjected to white and colored Gaussian jitter. It is shown that colored jitter degrades BER performance much more than white jitter, and the extent of degradation increases as the jitter bandwidth decreases. Motivated by this result, we then propose a new jitter compensation scheme to improve the BER performance under colored jitters with small jitter bandwidth, in which each information-bearing data symbol is coupled with a pilot symbol. The proposed scheme attempts to track first the jitter for the current pilot symbol by making use of the pulse-template correlation function. This information is then used together with the known clock jitter bandwidth and jitter root-mean-square (RMS) value to detect the current data symbol according to the maximum likelihood criterion. Simulation results show that the algorithm is effective in improving the BER performance for colored jitters with small jitter bandwidth.
Starting Page	19
Ending Page	33
Page Count	15
File Format	PDF
ISSN	09296212
Journal	Wireless Personal Communications
Volume Number	40
Issue Number	1
e-ISSN	1572834X
Language	English
Publisher	Kluwer Academic Publishers-Plenum Publishers
Publisher Date	2006-06-29
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Ultra-wideband (UWB) colored timing jitter tracking compensation maximum-likelihood (ML) Processor Architectures Signal, Image and Speech Processing Electronic and Computer Engineering
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering Computer Science Applications

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