Blind synchronization and sequences identification in CDMA transmissions - Université de Bretagne Occidentale Access content directly
Conference Papers Year : 2004

Blind synchronization and sequences identification in CDMA transmissions

Abstract

Blind sequences estimation methods, which work without prior knowledge about the transmitter, have been proposed in [1]-[3] ; but they are restricted to a single-user context. Here, we extend the approach originally proposed in [2] to the multi-user context. We have developed a fast and efficient blind synchronization criterion based on the behavior of the FROBENIUS square norm of a submatrix that scans the intercepted signal correlation matrix. By using eigenanalysis techniques and theoretical linear algebra results, we prove that the maxima of this criterion correspond to the synchronization times with transmitters. Then,eigenanalysis techniques allow to estimate the spreading sequences. Eigenanalysis was associated with additional processing modules aimed at solving dephasing problems due to the transmission channel.
Fichier principal
Vignette du fichier
2004_10_milcom_SynchroAndSeqEstimCDMA.pdf (965.61 Ko) Télécharger le fichier
Origin Files produced by the author(s)
Licence
Copyright

Dates and versions

hal-03222241 , version 1 (17-03-2023)

Licence

Copyright

Identifiers

Cite

C.N. Nzéza, R. Gautier, Gilles Burel. Blind synchronization and sequences identification in CDMA transmissions. IEEE MILCOM 2004. Military Communications Conference, 2004., Oct 2004, Monterey, United States. pp.1384-1390, ⟨10.1109/MILCOM.2004.1495144⟩. ⟨hal-03222241⟩

Collections

UNIV-BREST CNRS
19 View
12 Download

Altmetric

Share

Gmail Mastodon Facebook X LinkedIn More