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The Effect of Multipath on the OFDM System

by Bouamama Reda Sadouki, Hichem Chaker, Mouhamed Djebbouri
International Journal of Computer Applications
Foundation of Computer Science (FCS), NY, USA
Volume 89 - Number 13
Year of Publication: 2014
Authors: Bouamama Reda Sadouki, Hichem Chaker, Mouhamed Djebbouri
10.5120/15689-3933

Bouamama Reda Sadouki, Hichem Chaker, Mouhamed Djebbouri . The Effect of Multipath on the OFDM System. International Journal of Computer Applications. 89, 13 ( March 2014), 6-10. DOI=10.5120/15689-3933

@article{ 10.5120/15689-3933,
author = { Bouamama Reda Sadouki, Hichem Chaker, Mouhamed Djebbouri },
title = { The Effect of Multipath on the OFDM System },
journal = { International Journal of Computer Applications },
issue_date = { March 2014 },
volume = { 89 },
number = { 13 },
month = { March },
year = { 2014 },
issn = { 0975-8887 },
pages = { 6-10 },
numpages = {9},
url = { https://ijcaonline.org/archives/volume89/number13/15689-3933/ },
doi = { 10.5120/15689-3933 },
publisher = {Foundation of Computer Science (FCS), NY, USA},
address = {New York, USA}
}
%0 Journal Article
%1 2024-02-06T22:09:07.741094+05:30
%A Bouamama Reda Sadouki
%A Hichem Chaker
%A Mouhamed Djebbouri
%T The Effect of Multipath on the OFDM System
%J International Journal of Computer Applications
%@ 0975-8887
%V 89
%N 13
%P 6-10
%D 2014
%I Foundation of Computer Science (FCS), NY, USA
Abstract

A major problem in telecommunications is to adapt the information to be transmitted to the propagation channel. This, in order to obtain a good quality of wireless communications with high transmission rates , and the release cable users to allow them to move in large buildings. In this type of communication systems must be properly fight one effect of multipath, specifically the frequency selective fading. This led to the development and use of the technique of multiplexing by orthogonal frequency division (OFDM) appears to be a promising solution. For frequency-selective channels, a technique is the use of multi-carrier modulation in which a block of information is modulated by a Fourier transform. This known as OFDM (Orthogonal Frequency Division Multiplexing) technique has been very successful in recent years and is in the process of standardization in different standards without son (IEEE802. 11a, WiMAX, LTE, and DVB). OFDM has the great merit to transform broadband multi-path channel into a set of simple to equalize sub channels single-path. Moreover, the ingenious utilization of the transmission cyclic redundancy reduces the complexity of the terminals through the use of algorithms based on FFT fast. The purpose of this chapter is to introduce the OFDM modulation. The general principles are described (transmission chain . . . ) and benefits (simplicity of the equalization algorithms use fast FFT) and disadvantages (lack of diversity).

References
  1. S. RAGUSA, "Écrêtage inversible pour l'amplification non-linéaire des signaux OFDM dans les terminaux mobiles", Jui, 2006, thèse. Université Joseph Fourier. Http: //tel. ccsd. cnrs. fr/docs/00/08/46/58/PDF/thesis. pdf.
  2. B. THI MINH TU, "Performances des modulations multiporteuses OFDM/QAM suréchantillonnées en environnement radio-mobile", Jui, 2005. Mastère Signal Image Parole Télécommunications SIPT, Laboratoire des Images et des Signaux, Équipe Signal Images et Communications SIC. http ://www. lis. inpg. fr/pages_perso/siclet/rapport_mastere_bui. pdf.
  3. S. TRAVERSO, "Transposition de fréquence et compensation du déséquilibre IQ pour des systèmes multiporteuses sur canal sélectif en fréquence", Nov, 2007, thèse. Université de Cergy- Pontoise. http ://publi-etis. ensea. fr/2007/Tra07.
  4. S. THOMPSON, "Constant envelope OFDM phase modulation", 2005, thèse. University of Californi, San Diego. www. zeidler. ucsd. edu/pubs/C136. pdf.
  5. J. DUPLICY, "Etude d'un réseau WLAN à base de MIMO-OFDM et de beamforming adaptatif conjoint", Jui, 2003, thèse. Université Catholique de Louvain. Http : //www. tele. ucl. ac. be/publi/1354. pdf.
  6. S. DOUKALI, "Estimation du canal pour un système OFDM", Juin, 2007. Mémoire Ingénieur, Université Djillali Liabes de Sidi Bel-Abbes.
  7. J. NAKAD, "Allocations de ressources radio dans un réseau local sans fil (WLAN) de type OFDM", Dec, 2003,thèse. Université Libanaise, Université Saint-Joseph. www. telecomparistech. fr/_data/files/docs/id_627_1163155426_271. pdf.
  8. V. DEGARDIN, "Analyse de la faisabilité d'une transmission de données haut débit sur le réseau électrique basse tension", Dec, 2002,thèse. Université des Sciences et Technologies de Lille. France. www. telice. univlille1. fr/publications/docs/theses/virgin iedegardin_these. pdf.
  9. C. LENGOUMBI, "Algorithmes d'allocation de ressources en OFDMA : cas de la voie descendante d'une cellule radio isolée", Oct,2006,thèse. Ecole Nationale Supérieure des Télécommunications – Paris. www. telecom-paristech. fr/_data/files/docs/id_627_11631 55426_271. pdf.
  10. I. OUACHANI, "Analyse de performance de systemes de communications sans-fils exploitant micro- et macro-diversite", Jui,2005,thèse. Université de Paris XI Orsay. www. lss. supelec. fr/~publi/SWxoZW0gT1VBQ0hBTkk=_I_Ouachani_phD_report. pdf .
  11. É. JANDOT, "Applications du codage spatio-temporel à des réseaux sans fils", Des,2006,thèse. Ecole Doctorale D'informatique, Télécommunications Et Electronique De Parisé. www. pastel. paristech. org/2519/01/these_Danjou. pdf.
  12. T. YIUCEK, "Channel, spectrum, and waveform awareness in OFDM-based cognitive radio systems", Jul,2007,thèse. University of South Florida. http ://kong. lib. usf. edu :8881///exlibris/ dtl/d3_1/apache_media/111872. pdf.
  13. A. DELEUZE, "Contributions à l'étude des systèmes ultra large bande par impulsions", Fév,2006,thèse. Ecole Doctorale D'informatique, Télécommunications Et Electronique de Paris. http ://pastel. paristech. org/1668/01/these_al_deleuze. pdf.
  14. L. AZIZI, "Contribution à l'étude : des systèmes de transmission multi-antennes, des turbo-codes associés à des modulations à haute efficacité spectrale", Avr,2004,thèse. Université de Limoges. http ://www. unilim. fr/theses/2004/sciences/2004limo0003/azizi_l. pdf.
  15. E. MINACK, "Evaluation of the influence of channel conditions on Car2X Communication", Oct,2005,thèse. Chemnitz University Of Technology. http ://archiv. tuchemnitz. de/pub/2005/0157/data/enrico_minack_diploma_thesis. pdf.
  16. A. HEBBAR, "Empirical approach for rate selection in MIMO OFDM", Dec,2004,thèse. Virginia Polytechnic Institute and State University in Partial Fulfilment. http ://scholar. lib. vt. edu/theses/available/etd 01082005153029/unrestricted/MasterThesisPdf. pdf.
  17. V. ROBERT, "Etude des canaux de Rayleigh et des canaux sélectifs diversité de transmission", Oct,2004. Master en Science de l'ingénieur Electronique et Systèmes de Communication ESCO, ENST. Paris. http ://perso. telecom-paristech. fr/~vallet/Cours/dom992000. pdf.
  18. V. LE NIR, "Étude et optimisation des systèmes multi-antennes associés à des modulations multiporteuses", Nov,2004,thèse. Institut National des Sciences Appliquées de Rennes. http ://homes. esat. kuleuven. be/~vlenir/THESE. pdf.
Index Terms

Computer Science
Information Sciences

Keywords

Bit error rate (BER) (Signal to Noise Ratio) (SNR) Quadrature Amplitude Modulation (QAM) Orthogonal Frequency Division Multiplexing (OFDM).