Sensitivity of orthogonal frequency-division multiplexed systems to carrier and clock synchronization errors

Citation
H. Steendam et M. Moeneclaey, Sensitivity of orthogonal frequency-division multiplexed systems to carrier and clock synchronization errors, SIGNAL PROC, 80(7), 2000, pp. 1217-1229
Citations number
9
Categorie Soggetti
Eletrical & Eletronics Engineeing
Journal title
SIGNAL PROCESSING
ISSN journal
01651684 → ACNP
Volume
80
Issue
7
Year of publication
2000
Pages
1217 - 1229
Database
ISI
SICI code
0165-1684(200007)80:7<1217:SOOFMS>2.0.ZU;2-1
Abstract
In this contribution, we present an overview of research results pertaining to the sensitivity of orthogonal frequency-division multiplexed (OFDM) sys tems to synchronization errors. We show that OFDM systems are quite sensiti ve to carrier frequency offset and clock frequency offset: in the presence of these impairments, the signal-to-noise ratio (SNR) at the input of the d ecision device is a decreasing function of the number of carriers. On the o ther hand, carrier phase jitter and timing jitter give rise to a degradatio n of the SNR at the input of the decision device which does not depend on t he number of carriers; as compared to traditional single-carrier systems, O FDM systems have the same sensitivity to carrier phase jitter and a somewha t larger sensitivity to timing jitter. (C) 2000 Elsevier Science B.V. All r ights reserved.