Carrier-frequency estimation for transmissions over selective channels

Citation
M. Morelli et U. Mengali, Carrier-frequency estimation for transmissions over selective channels, IEEE COMMUN, 48(9), 2000, pp. 1580-1589
Citations number
13
Categorie Soggetti
Information Tecnology & Communication Systems
Journal title
IEEE TRANSACTIONS ON COMMUNICATIONS
ISSN journal
00906778 → ACNP
Volume
48
Issue
9
Year of publication
2000
Pages
1580 - 1589
Database
ISI
SICI code
0090-6778(200009)48:9<1580:CEFTOS>2.0.ZU;2-J
Abstract
This paper deals with carrier-frequency estimation for burst transmissions over frequency-selective channels. Three estimation schemes are proposed, a ll based on the use of known training sequences. The first scheme employs a n arbitrary sequence and provides joint maximum-likelihood (ML) estimates o f the carrier frequency and the channel response. Its implementation comple xity is relatively high but its accuracy achieves the Cramer-Rao bound. The second scheme is still based on the ML criterion, but the training sequenc e is periodic, which helps to reduce the computational load. The third sche me also employs periodic sequences, but its structure comes from heuristic reasoning. Theoretical analysis and simulations are employed to assess the performance of the three schemes.