Spectrally Efficient SAC-OCDMA System Using a New Two-Code Keying Scheme

Hamza M. R. Al-Khafaji; Razali Ngah; Alaa J. Mousa; S. A. Aljunid

doi:doi:10.11648/j.ijics.20160102.13

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Spectrally Efficient SAC-OCDMA System Using a New Two-Code Keying Scheme

Hamza M. R. Al-Khafaji, Razali Ngah, Alaa J. Mousa, S. A. Aljunid

Published in International Journal of Information and Communication Sciences (Volume 1, Issue 2)

Received: 2 July 2016 Accepted: 19 August 2016 Published: 26 September 2016

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Abstract

This paper introduces a new two-code keying scheme for increasing the spectral efficiency (SE) of spectral-amplitude-coding optical code-division multiple-access (SAC-OCDMA) system. The analytical expression is derived for the SE of SAC-OCDMA system based on the proposed scheme utilizing multi-diagonal (MD) code. The theoretical results demonstrate that the suggested scheme has an improved SE performance over the conventional unipolar encoding with direct detection technique. This SE enhancement is verified in simulation experiments.

Published in	International Journal of Information and Communication Sciences (Volume 1, Issue 2)
DOI	10.11648/j.ijics.20160102.13
Page(s)	30-34
Creative Commons	This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.
Copyright	Copyright © The Author(s), 2024. Published by Science Publishing Group

Keywords

SAC-OCDMA, Spectral Efficiency, Two-Code Keying Scheme, Bipolar Encoding, MD Code

References

[1]	Kitayama, K. I.: ‘Optical code division multiple access: a practical perspective’, Cambridge University Press, 2014.
[2]	Kwong, W. C., and Yang, G.-C.: ‘Optical coding theory with prime’, CRC Press Taylor & Francis Group, 1st ed., 2013.
[3]	Sahuguede, S., Julien-Vergonjanne, A., and Cances, J. P.: ‘Beat noise compensation in OCDMA systems using soft decoding based FEC’, IEEE Transactions on Communications, 2011, 59, pp. 1400−1410.
[4]	Hussein, G. A., Abd El-atty, S. M., Oraby, O. A., Mohamed, A. E. A., Elkorany, A. S., Eldokany, I., Dessouky, M. I., El-Rabaie, E. M., Alshebeili, S. A., and El-Samie, F. E.: ‘An efficient MAI cancellation technique in optical CDMA’, Optik-International Journal for Light and Electron Optics, 2014, 125, pp. 2995−3000.
[5]	Al-Khafaji, H. M. R., Aljunid, S. A., Amphawan, A., and Fadhil, H. A.: ‘Improving spectral efficiency of SAC-OCDMA systems by SPD scheme’, IEICE Electron. Express, 2012, 9, pp. 1829−1834.
[6]	Shastri, B. J., El-Sahn, Z. A., Zeng, M., Kheder, N., Rusch, L. A., and Plant, D. V.: ‘A standalone burst-mode receiver with clock and data recovery, clock phase alignment, and RS (255, 239) codes for SAC-OCDMA applications’, IEEE Photonics Technology Letters, 2008, 20, pp. 363−365.
[7]	Anuar, M. S., Aljunid, S. A., Saad, N. M., and Hamzah, S. M.: ‘New design of spectral amplitude coding in OCDMA with zero cross-correlation’, Opt. Commun., 2009, 282, pp. 2659−2664.
[8]	Sedaghat, M. A., Muller, R. R., and Marvasti, F.: ‘Performance analysis of asynchronous optical code-division multiple access with spectral-amplitude-coding’, IET Commun., 2014, 8, pp. 956−963.
[9]	Al-Khafaji, H. M. R., Aljunid, S. A., Amphawan, A., and Fadhil, H. A.: ‘SOA/SPD-based incoherent SAC-OCDMA system at 9 × 5 Gbps’, IEICE Electron. Express, 2013, 10, 20130044.
[10]	Abd, T. A., Aljunid, S. A., Fadhil, H. A., Ahmad, R. A., and Saad, N. M.: ‘Development of a new code family based on SAC-OCDMA system with large cardinality for OCDMA network’, Opt. Fiber Technol., 2011, 17, pp. 273−280.
[11]	Al-Khafaji, H. M. R., Ngah, R., Aljunid, S. A., and Rahman, T. A.: ‘A new two-code keying scheme for SAC-OCDMA systems enabling bipolar encoding’, Journal of Modern Optics, 2015, 62, pp. 327−335.
[12]	Al-Khafaji, H. M. R., Ngah, R., Aljunid, S. A., Rahman, T. A., and Ahmed, M. Y.: ‘A new approach for enabling bipolar encoding in high-rate SAC-OCDMA systems’, IEEE 2015 International Conference on Communications, Signal Processing, and their Applications (ICCSPA15), Sharjah, United Arab Emirates (UAE), 2015.
[13]	Al-Khafaji, H. M. R., Ngah, R., Aljunid, S. A., and Rahman, T. A.: ‘A novel encoding and decoding structure for SAC-OCDMA systems enabling high-rate transmission’, IEEE Asia-Pacific Conference on Applied Electromagnetics (APACE2014), Johor Bahru, Malaysia, 2014.
[14]	Al-Khafaji, H. M. R., Ngah, R., Aljunid, S. A., and Rahman, T. A.: ‘An innovative encoding/decoding architecture based on two-code keying for SAC-OCDMA systems’, IEEE 5th International Conference on Photonics (ICP2014), Kuala Lumpur, Malaysia, 2014.
[15]	Rochette, M., Ayotte, S., and Rusch, L. A.: ‘Analysis of the spectral efficiency of frequency-encoded OCDMA systems with incoherent sources’, J. Lightwave Technol., 2005, 23, pp. 1610−1619.

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APA Style

Hamza M. R. Al-Khafaji, Razali Ngah, Alaa J. Mousa, S. A. Aljunid. (2016). Spectrally Efficient SAC-OCDMA System Using a New Two-Code Keying Scheme. International Journal of Information and Communication Sciences, 1(2), 30-34. https://doi.org/10.11648/j.ijics.20160102.13

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ACS Style

Hamza M. R. Al-Khafaji; Razali Ngah; Alaa J. Mousa; S. A. Aljunid. Spectrally Efficient SAC-OCDMA System Using a New Two-Code Keying Scheme. Int. J. Inf. Commun. Sci. 2016, 1(2), 30-34. doi: 10.11648/j.ijics.20160102.13

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AMA Style

Hamza M. R. Al-Khafaji, Razali Ngah, Alaa J. Mousa, S. A. Aljunid. Spectrally Efficient SAC-OCDMA System Using a New Two-Code Keying Scheme. Int J Inf Commun Sci. 2016;1(2):30-34. doi: 10.11648/j.ijics.20160102.13

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@article{10.11648/j.ijics.20160102.13,
  author = {Hamza M. R. Al-Khafaji and Razali Ngah and Alaa J. Mousa and S. A. Aljunid},
  title = {Spectrally Efficient SAC-OCDMA System Using a New Two-Code Keying Scheme},
  journal = {International Journal of Information and Communication Sciences},
  volume = {1},
  number = {2},
  pages = {30-34},
  doi = {10.11648/j.ijics.20160102.13},
  url = {https://doi.org/10.11648/j.ijics.20160102.13},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijics.20160102.13},
  abstract = {This paper introduces a new two-code keying scheme for increasing the spectral efficiency (SE) of spectral-amplitude-coding optical code-division multiple-access (SAC-OCDMA) system. The analytical expression is derived for the SE of SAC-OCDMA system based on the proposed scheme utilizing multi-diagonal (MD) code. The theoretical results demonstrate that the suggested scheme has an improved SE performance over the conventional unipolar encoding with direct detection technique. This SE enhancement is verified in simulation experiments.},
 year = {2016}
}

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TY  - JOUR
T1  - Spectrally Efficient SAC-OCDMA System Using a New Two-Code Keying Scheme
AU  - Hamza M. R. Al-Khafaji
AU  - Razali Ngah
AU  - Alaa J. Mousa
AU  - S. A. Aljunid
Y1  - 2016/09/26
PY  - 2016
N1  - https://doi.org/10.11648/j.ijics.20160102.13
DO  - 10.11648/j.ijics.20160102.13
T2  - International Journal of Information and Communication Sciences
JF  - International Journal of Information and Communication Sciences
JO  - International Journal of Information and Communication Sciences
SP  - 30
EP  - 34
PB  - Science Publishing Group
SN  - 2575-1719
UR  - https://doi.org/10.11648/j.ijics.20160102.13
AB  - This paper introduces a new two-code keying scheme for increasing the spectral efficiency (SE) of spectral-amplitude-coding optical code-division multiple-access (SAC-OCDMA) system. The analytical expression is derived for the SE of SAC-OCDMA system based on the proposed scheme utilizing multi-diagonal (MD) code. The theoretical results demonstrate that the suggested scheme has an improved SE performance over the conventional unipolar encoding with direct detection technique. This SE enhancement is verified in simulation experiments.
VL  - 1
IS  - 2
ER  -

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Author Information

Hamza M. R. Al-Khafaji

Computer Techniques Engineering Department, Al-Mustaqbal Univers
Razali Ngah

Wireless Communication Centre, Faculty of Electrical Engineering
Alaa J. Mousa

Computer Techniques Engineering Department, Islamic University College, Najaf, Iraq
S. A. Aljunid

School of Computer and Communication Engineering, Universiti Malaysia Perlis, Perlis, Malaysia

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Plain Text BibTeX RIS

APA Style

Hamza M. R. Al-Khafaji, Razali Ngah, Alaa J. Mousa, S. A. Aljunid. (2016). Spectrally Efficient SAC-OCDMA System Using a New Two-Code Keying Scheme. International Journal of Information and Communication Sciences, 1(2), 30-34. https://doi.org/10.11648/j.ijics.20160102.13

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ACS Style

Hamza M. R. Al-Khafaji; Razali Ngah; Alaa J. Mousa; S. A. Aljunid. Spectrally Efficient SAC-OCDMA System Using a New Two-Code Keying Scheme. Int. J. Inf. Commun. Sci. 2016, 1(2), 30-34. doi: 10.11648/j.ijics.20160102.13

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AMA Style

Hamza M. R. Al-Khafaji, Razali Ngah, Alaa J. Mousa, S. A. Aljunid. Spectrally Efficient SAC-OCDMA System Using a New Two-Code Keying Scheme. Int J Inf Commun Sci. 2016;1(2):30-34. doi: 10.11648/j.ijics.20160102.13

Copy | Download

@article{10.11648/j.ijics.20160102.13,
  author = {Hamza M. R. Al-Khafaji and Razali Ngah and Alaa J. Mousa and S. A. Aljunid},
  title = {Spectrally Efficient SAC-OCDMA System Using a New Two-Code Keying Scheme},
  journal = {International Journal of Information and Communication Sciences},
  volume = {1},
  number = {2},
  pages = {30-34},
  doi = {10.11648/j.ijics.20160102.13},
  url = {https://doi.org/10.11648/j.ijics.20160102.13},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijics.20160102.13},
  abstract = {This paper introduces a new two-code keying scheme for increasing the spectral efficiency (SE) of spectral-amplitude-coding optical code-division multiple-access (SAC-OCDMA) system. The analytical expression is derived for the SE of SAC-OCDMA system based on the proposed scheme utilizing multi-diagonal (MD) code. The theoretical results demonstrate that the suggested scheme has an improved SE performance over the conventional unipolar encoding with direct detection technique. This SE enhancement is verified in simulation experiments.},
 year = {2016}
}

Copy | Download

TY  - JOUR
T1  - Spectrally Efficient SAC-OCDMA System Using a New Two-Code Keying Scheme
AU  - Hamza M. R. Al-Khafaji
AU  - Razali Ngah
AU  - Alaa J. Mousa
AU  - S. A. Aljunid
Y1  - 2016/09/26
PY  - 2016
N1  - https://doi.org/10.11648/j.ijics.20160102.13
DO  - 10.11648/j.ijics.20160102.13
T2  - International Journal of Information and Communication Sciences
JF  - International Journal of Information and Communication Sciences
JO  - International Journal of Information and Communication Sciences
SP  - 30
EP  - 34
PB  - Science Publishing Group
SN  - 2575-1719
UR  - https://doi.org/10.11648/j.ijics.20160102.13
AB  - This paper introduces a new two-code keying scheme for increasing the spectral efficiency (SE) of spectral-amplitude-coding optical code-division multiple-access (SAC-OCDMA) system. The analytical expression is derived for the SE of SAC-OCDMA system based on the proposed scheme utilizing multi-diagonal (MD) code. The theoretical results demonstrate that the suggested scheme has an improved SE performance over the conventional unipolar encoding with direct detection technique. This SE enhancement is verified in simulation experiments.
VL  - 1
IS  - 2
ER  -

Copy | Download