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Conference papers
Blind Multiuser Identification in Multirate CDMA Transmissions: A New Approach
Abstract : A new blind sequences synchronization method in multiuser multirate CDMA context is proposed in this paper. Instead of the approach based on the Frobenius square norm behaviour (FSNB) previously proposed in [1]-[3], we develop a new blind method based on the maximum eigenvalue behaviour (MEVB) according to analysis window shifts. Theoretical analysis shows that the MEVB-based criterion provides a significant improvement of performances, and proves that it is a powerful tool for blind synchronization. We show that the improvement is mainly due to suppression of synchronisation peaks masking that occurred with the previous method. Simulation results confirm that, performing the synchronization process using this new criterion, allows one to achieve very good performances at the receiver side in term of chip error rate (CER) and bit error rate (BER), even at very low SNRs.
https://hal.univ-brest.fr/hal-00485666
Contributor : Roland Gautier Connect in order to contact the contributor
Submitted on : Friday, May 21, 2010 - 2:22:02 PM
Last modification on : Wednesday, October 13, 2021 - 2:50:07 PM
Contributor : Roland Gautier Connect in order to contact the contributor
Submitted on : Friday, May 21, 2010 - 2:22:02 PM
Last modification on : Wednesday, October 13, 2021 - 2:50:07 PM