Skip to Main content Skip to Navigation
Conference papers

Improved bit error probability estimation for DS-CDMA downlink equalizer-based receivers with small spreading factors

Eric Hardouin 1 Christophe Laot 2, 1
2 Lab-STICC_IMTA_CACS_COM
Lab-STICC - Laboratoire des sciences et techniques de l'information, de la communication et de la connaissance
Abstract : This paper provides insight INTO data_ds.tmp_pub_the statistical distribution of the interference at the output of the receivers composed of a chip-rate linear transverse equalizer followed by a despreader for the downlink of direct-sequence code-division multiple access (DS-CDMA) systems with long scrambling sequences. It is shown that for small spreading factors, the probability density function (PDF) of the interference samples can be modelled accurately as a mixture of Gaussian PDFs. Each component of the mixture is associated with a particular realization of the scrambling sequence spanning the spread symbol to be retrieved. Based on the study, an analytical method allowing the computation of the bit error probability for small spreading factors is derived. Numerical simulations show that the BEP estimation achieved by the proposed method is far more accurate than that obtained via the traditionnal Gaussian assumption on the interference statistics.
Document type :
Conference papers
Complete list of metadata

https://hal.archives-ouvertes.fr/hal-02128497
Contributor : Bibliothèque Télécom Bretagne Connect in order to contact the contributor
Submitted on : Tuesday, May 14, 2019 - 12:18:13 PM
Last modification on : Monday, October 11, 2021 - 2:23:51 PM

Identifiers

Citation

Eric Hardouin, Christophe Laot. Improved bit error probability estimation for DS-CDMA downlink equalizer-based receivers with small spreading factors. ICT 2003 : 10th international conference on telecommunications, February 23-March 1, Tahiti, French Polynesia, Feb 2003, Tahiti, Polynésie française. pp.877 - 881, ⟨10.1109/ICTEL.2003.1191523⟩. ⟨hal-02128497⟩

Share

Metrics

Les métriques sont temporairement indisponibles