Abstract
This paper investigates the Parallel Interference Cancellation technique in Direct Sequence Optical Code Division Multiple Access (ds-ocdma) system. In the proposed system, the estimated interference is removed from the received signal. We have developped a new approach to obtain the analytical expression of error probability in chip synchronous case, for Optical Orthogonal Codes (ooc). We have shown that under specific conditions between codes parameters and users’ number, the interference can be completely neutralized. Simulation results have validated the theoretical analysis. It is shown that the proposed receiver is effective in reducing significantly the effects of Multiple Access Interference (mai) compared to other interference cancellation systems.
Résumé
Cet article présente l’étude d’un récepteur basé sur l’annulation parallèle d’interférence d’accès multiple dans un système d’accès multiple par répartition en code à séquence directe (ds-ocdma). Le principe consiste à estimer l’interférence due aux utilisateurs non désirés pour la soustraire du signal reçu à l’entrée du récepteur. Nous avons obtenu la formule théorique de la probabilité d’erreur dans le cas synchrone, pour les codes optiques orthogonaux (ooc). Nous avons prouvé que, pour des conditions spécifiques concernant les paramètres des codes et le nombre d’utilisateurs, l’effet de l’interférence peut être complètement éliminé Les résultats de simulation ont validé l’analyse théorique. On montre enfin que le récepteur proposé est plus efficace que d’autres systèmes d’annulation d’interférence pour réduire de manière significative les effets de l’interférence d’accès multiple (mai).
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References
Salehi (J.A.). Code Division Multiple-Access Techniques in Optical Fiber Networks-Part I and Part II.ieee Trans. Commun. (1989),37, no8, pp. 824–842
Zahedi (S.),Salehi (J.A.). Performance Analysis for various Fiber-OpticAienecdma receivers structures.J.Lightwave Techn.(2000),18, no12, pp 1718–1727.
Chen (J.J.),Yang (G-C.),cdma Fiber-Optic systems with optical hard-limiter.J.Lightwave Techn.(2001),19, no7, pp. 950–958.
Tang (J.T.K.),Letaief (K.B.). Opticalcdma Communications systems with multiuser and blind detection.IEEE Trans. Commun.(1999),47, no8, pp. 1211–1217.
Laflamme (J.P.),Rush (L.A.). Multiple access interference suppression in an opticalds-cdma lan using fractionnaly-spaced equalization.ieee Conference on Electrical and Computer Eng. (1999),1, pp 186–190.
Brandt-Pearce (M.),Aazhang (B.). Multiuser detection for optical code division multiple access systems.IEEE Trans. On Commun.(1994),42, no2/3/4, pp.1801–1810.
Fantacci (R.),Tani (A.),Vannuccini (G.). Performance evaluation of an interference cancellation receiver for noncoherent optical CDMA systems.globecom 2002,3, pp. 2823–2827.
Yang (G.C.),Kwong (W.C.). Performance comparison of MultiwavelengthAienecdma andwdma+cdma for fiber-optic networks.ieee Trans. Comm. (1997),45, no11, pp. 1426–1434.
Fathallah (H.),Rush (L.A.),Larochelle (S.). Optical Frequency-Hop Multiple Access Communications system.ieee Intern. Conf.on Commun.(1998),9, no36-2, pp 1269–1273.
Stok (A.),Sargent (E.). Lighting the local area: Optical Code-Division Multiple Access and Quality of Service Provisioning.ieee Network (2000), pp. 42–46.
Wakafuji (K.),Ohtsuki (T.). Direct-Detection Opticalcdma Receiver With Interference Estimation and Double Optical Limiters.ieee J.Lightwave Techn(2003),21, no10, pp. 2182–2188.
Yang (G.C.). Variable weight Optical Orthogonal Codes forcdma Networks with multiple performance requirements.ieee Trans. Commun (1996),44, no1, pp. 47–55.
Verdu (S.). Multiuser detection.Cambridge University Press (1998), New-York,usa.
Divsalar (D.),Simon (M.K.)., ImprovedAienecdma performance using parallel interference cancellation.Military Communications Conference (1994),.milcom ’94. Conference Record, no2–5, pp.911–917.
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ClaireGoursaud received her Diplôme d’Ingénieur from the Ecole Nationale Supérieure d’Ingénieurs de Limoges, France (ensil) in 2003. She continued her studies as a doctorate student (PhD) in the research group ofensil. Her research work deals with the study of the digital signal processing applied to Optical Code Division Multiple Access.
Naufal M.Saad was born in Malaysia in 1977. He received his Master of Engineering degree from the Ecole Nationale Supérieure d’Ingénieurs de Limoges, France (ensil) in 2001. He has since continued his studies as a doctorate student (PhD) in the research group ofensil. His research work deals with the study of the Optical Code Division Multiple Access.
YounesZouine received his degree in Mathematics and Physics studies from Moulay Ismail University in Meknes, Morocco in 2001. Then he did his Master of Sciences studies in High Frequency and Optical Telecommunications in the University of Limoges, France, in 2002. At present, he is working towards his PhD degree. His research work deals with Optical Code Division Multiple Access in the research group ofensil. His thesis scholarship is supported by European funds.
AnneJulien-Vergonjanne received her Ph.D in High Frequency Telecommunications and Optics from the University of Limoges in 1987. She joined the Ecole Nationale Supérieure d’Ingénieurs de Limoges (ensil), University of Limoges, as Assistant Professor of Electronics and Telecommunications in 1997. Her current research interests deal with digital signal processing for communications and especially with theory and implementation of signal processing for Optical CDMA systems.
ChristelleAupetit-Berthelemot graduated in Telecommunication Engineering from the Ecole Nationale Supérieure d’Ingénieurs de Limoges (ensil) in 1995. She received her Ph.D degree from University of Limoges in High Frequency Telecommunications and Optic in 1998. She is now an assistant-professor in Electronics and Telecommunications atensil — University of Limoges. Her current research interests include optoelectronic devices, fiber-optic communication systems and Opticalcdma systems.
Jean-PierreCances graduated in electrical engineering fromenst Bretagne in 1990. He received his Ph.D degree from Télécom Paris in satellite communication engineering in 1993. He is now an assistant professor at the Ecole Nationale Supérieure d’Ingénieurs de Limoges (ensil). His current research interests include satellite communication systems,cdma multiuser detection, multicarrier modulation and synchronization algorithms.
Jean-MichelDumas received his Diplôme d’Ingénieur from the Institut National des Sciences Appliquées of Toulouse, in 1973 and the Doctorat ès-Sciences Physiques degree from the University of Limoges in 1985. He was a member of the technical staff of France Télécom/Centre National d’Etudes des Télécommunications (ft cnet) in Lannion till 1994. Then, he joined the Ecole Nationale Supérieure d’Ingénieurs de Limoges (ensil), University of Limoges, as Professor of Electronics and Telecommunications. Atensil, he leads a research group involved in the characterization of optoelectronic devices and the simulation of digital communication systems.
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Goursaud, C., Saad, N.M., Zouine, Y. et al. Parallel multiple access interference cancellation in optical DS-CDMA systems. Ann. Télécommun. 59, 1212–1227 (2004). https://doi.org/10.1007/BF03179716
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DOI: https://doi.org/10.1007/BF03179716
Key words
- Optical telecommunication
- Optical fiber transmission
- Code division multiple access
- Direct sequence spread spectrum
- Signal interference
- Error probability
- Orthogonal sequence
- Parallel configuration
- Theoretical study
- Numerical simulation
- Receiver