Abstract
A new two-dimensional(spectral/spatial) optical code division multiple access is developed by using one-dimensional Multi-Service code. The spectral/spatial proposed system can suppress the multiple access interference (MAI) by using the MAI cancellation property. The numerical analysis shows that two-dimensional multi-service code has a better performance compared to one-dimensional multi-service, two-dimensional perfect difference (2D-PD), two-dimensional Hybrid «flexible cross correlation/modified double weight» (2D-FCC/MDW)and two-dimensional extended enhanced double weight (2D-extended-EDW) codes; It accommodates 1.5, 2.5 and 3.3 times the maximum number of simultaneous users allocated by 2D-PD, 2D-FCC/MDW and 2D-Extended-EDW codes, respectively. By keeping the similar code length and increasing the spatial code length, the capacity and the available data rate are enhanced; also, the effective transmitted power and spectral width are decreased. The transit from 1D to 2D enhances around three times the system capacity.
This is a preview of subscription content, log in via an institution to check access.
References
Fathallah, H., Rusch, L.A., LaRochelle, S.: Passive optical fast frequency-hop CDMA communications system. J. Light. Technol. 17, 397–405 (1999)
Jellali, N., Najjar, M., Ferchichi, M., Rezig, H.: Development of new two-dimensional spectral/spatial code based on dynamic cyclic shift code for OCDMA system. Opt. Fiber Technol. 36, 26–32 (2017)
Kakaee, M.H., Seyedzadeh, S., Adnan Fadhil, H., Barirah Ahmad Anas, S., Mokhtar, M.: Development of multi-service (MS) for SAC-OCDMA systems. Opt. Laser Technol. 60, 49–55 (2014)
Keraf, N.D., Aljunid, S.A., Arief, A.R., Nurol, M.N., Anuar, M.S., Rashidi, C.B.M., Ehkan, P.: Noise mitigation for OCDMA system with wavelength/time 2D hybrid code. In: 2014 IEEE 5th International Conference on Photonics (ICP) (pp. 2–4). IEEE. (2014)
Keraf, N. din, Aljunid, S.A., Abdullah, A.R.A.J., Ehkan, P.: The evolution of double weight codes family in spectral amplitude coding OCDMA. In: Advanced Computer and Communication Engineering Technology (pp. 129–140) (2015)
Keraf, N.D., Aljunid, S.A., Rashidi, C.B.M., Ehkan, P.: Performance of 2-D hybrid fcc-mdw code on ocdma system with the presence of phase induced intensity noise. ARPN J. Eng. Appl. Sci. 11, 13203–13208 (2016)
Kumawat, S., Ravi Kumar, M.: Generalized optical code construction for enhanced and modified double weight like codes without mapping for SAC-OCDMA systems. Opt. Fiber Technol. 30, 72–80 (2016)
Lin, C.H., Wu, J., Yang, C.L.: Noncoherent spatial/spectral optical CDMA system with two-dimensional perfect difference codes. J. Lightwave Technol. 23, 3966–3980 (2005)
Mostafa, S., Mohamed, A.E.-N.A., Abd El-Samie, F.E., Rashed, A.N.Z.: Performance analysis of diagonal eigenvalue unity (DEU) code using NAND subtraction and spectral direct detection techniques and its use with triple-play-services in SAC-OCDMA. Wirel. Pers. Commun. 85, 1831–1849 (2015)
Nurol, M.N., Arief, A.R., Anuar, M.S., Arif, S.: Performance analysis of 2-D extended-EDW code for optical CDMA system. In: 2014 2nd International Conference on Electronic Design (ICED) (pp. 287–292). IEEE. (2014)
Prucnal, P., Santoro, M.: Spread spectrum fiber-optic local area network using optical processing. J. Lightwave Technol. 4, 547–554 (1986)
Yeh, B.C., Lin, C.H., Yang, C.L., Wu, J.: Noncoherent spectral/spatial optical CDMA system using 2-D diluted perfect difference codes. J. Lightwave Technol. 27, 2420–2432 (2009)
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Najjar, M., Jellali, N. & Ferchichi, M. Two-dimensional multi-service code for spectral/spatial optical CDMA system. Opt Quant Electron 49, 397 (2017). https://doi.org/10.1007/s11082-017-1234-x
Received:
Accepted:
Published:
DOI: https://doi.org/10.1007/s11082-017-1234-x