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Dergiler / Istanbul University Journal of Electrical and Electronics Engineering / 2007 / Cilt: 7 - Sayı: 1

Analysis of the relationship between multipath fading and optimum subcarrier spacing for generalized MC DS-CDMA systems

Seher SENER
Ibrahim DEVELI
Sayfa
373–378
Yayın Tarihi
2022-10-18
DOI
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The results show that the optimum subcarrier spacing isalmost independent of the variation of the fading parameter when the number of subcarriers is small.On the contrary, it is observed that the fading parameter has a clear effect on the settling of theoptimum subcarrier spacing for large number of subcarriers.

📌 3 Maddede Bu Makale

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Amaç & Hipotez:Generalized multicarrier direct sequence code-division multiple-access (MC DS-CDMA) system is amodel which includes a number of specific MC DS-CDMA schemes by varying the normalizedsubcarrier spacing.
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Temel Bulgular & Veri:In the generalized MC DS-CDMA scheme, for a given system bandwidth and agiven channel environment, there exists an optimum subcarrier spacing, which results in a minimumbit error rate.
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Sonuç & Katkı:The results show that the optimum subcarrier spacing isalmost independent of the variation of the fading parameter when the number of subcarriers is small.On the contrary, it is observed that the fading parameter has a clear effect on the settling of theoptimum subcarrier spacing for large number of subcarriers.
🔬Tür:Modelleme & Sayısal Simülasyon
📍Kapsam:Genişletilmiş Akademik Örneklem
⚙️Değişkenler:Alan Parametreleri

Abstract

Generalized multicarrier direct sequence code-division multiple-access (MC DS-CDMA) system is amodel which includes a number of specific MC DS-CDMA schemes by varying the normalizedsubcarrier spacing. In the generalized MC DS-CDMA scheme, for a given system bandwidth and agiven channel environment, there exists an optimum subcarrier spacing, which results in a minimumbit error rate. In this paper, as an extension of a previous study, detailed analysis on the variation ofthe optimum normalized subcarrier spacing for the generalized MC DS-CDMA in multipathNakagami-m fading channels is performed. The results show that the optimum subcarrier spacing isalmost independent of the variation of the fading parameter when the number of subcarriers is small.On the contrary, it is observed that the fading parameter has a clear effect on the settling of theoptimum subcarrier spacing for large number of subcarriers.

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Bu Makaleye Atıf Yap

SENER, S., DEVELI, I. (2022). Analysis of the relationship between multipath fading and optimum subcarrier spacing for generalized MC DS-CDMA systems. Istanbul University Journal of Electrical and Electronics Engineering, Cilt: 7 - Sayı: 1, 373–378. https://ajindex.com/articles/543778

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Kaynakça (15)

  1. Bingham, J.A.C., “Multicarrier Modulation for Data Transmission: An Idea Whose Time has Come”, IEEE Commun. Mag., Vol: 28, No: 5, pp. 5-14, 1990
  2. Hara, S., Prasad, R., “Overview of Multicarrier CDMA”, IEEE Commun. Mag., Vol: 35, No:12, pp. 126-133, 1997
  3. Kondo, S., Milstein, L.B., “Performance of Multicarrier DS CDMA Systems”, IEEE Trans. Commun., Vol: 44, No: 2, pp. 238-246, 1996
  4. Hara, S., Prasad, R., “Design and Performance of Multicarrier CDMA System in Frequency-Selective Rayleigh Fading Channels”, IEEE Trans. Veh. Tech., Vol: 48, No: 5, pp. 1584-1595, 1999
  5. Vandendorpe, L., “Multitone Spread Spectrum Multiple Access Communications System in a Multipath Rician Fading Channel”, IEEE Trans. Veh. Tech., Vol: 44, No: 2, pp. 327-337, 1995
  6. Develi, I., “New Results on the Performance of Multitone DS-CDMA Systems in Nakagami- m Fading Channels”, IEICE Trans. Commun., Vol: E88B, No: 12, pp. 4675-4677. 2005
  7. Sari, H., “Orthogonal Multicarrier CDMA and its Detection on Frequency-Selective Channels”, Euro. Trans. Telecommun., Vol: 13, No: 5, pp. 439-445, 2002
  8. Gui, X., Ng, T.S., “Performance of Asynchronous Orthogonal Multicarrier CDMA System in Frequency Selective Fading Channel”, IEEE Trans. Commun., Vol: 47, No: 7, pp. 1084-1091, 1999
  9. Moon, S., Ko, G., Kim, K., “Orthogonal Multicarrier-CDMA Technique with MRC Scheme on Two-Ray Multipath Fading Channels”, IEEE Trans. Commun., Vol: E84B, No: 6, pp. 1683-1686, 2001
  10. DaSilva, V.M., Sousa, E.S., “Multicarrier Orthogonal CDMA Signals for Quasi- synchronous Communication Systems”, IEEE J Selected Areas in Commun., Vol: 12, No: 5, pp. 842-852. 1994
  11. Sourour, E.A., Nakagawa, M., “Performance of Orthogonal Multicarrier CDMA in a Multipath Fading Channel”, IEEE Trans. Commun., Vol: 44, No: 3, pp. 356-367, 1996
  12. Yang, L.L., Hanzo, L., “Performance of Generalized Multicarrier DS-CDMA over Nakagami-m Fading Channels”, IEEE Trans. Commun., Vol: 50, No: 6, pp. 956-966, 2002
  13. Nakagami, M., The m-Distribution−a General Formula of Intensity Distribution of Rapid Fading, Statistical Methods of Radio Wave Propagation, Pergamon, 1960
  14. Develi, I., et.al., “Detailed Analysis of the Optimum Normalized Subcarrier Spacing of Generalized MC DS-CDMA in Multipath Nakagami-m Fading Channels”, Proc. IEEE 13th Signal Processing and Communications Applications Conference, CD-ROM, 2005
  15. Simon, M.K., Alouini, M.S., Digital Communication over Fading Channels: a Unified Approach t