Abstract
In this paper, we propose a spatial ternary coding scheme for optical code-division multiple access systems. Since the multiple access interference (MAI) and beat noise leads to the error floor effect, using error correction mechanism is a preferable manner to further enhance the system performance. The proposed spatial ternary coding scheme possesses larger free distance, which is an effective way to relieve such deteriorating effect. It is expected that more users accommodated in the network can obtain higher throughput, while the side effects of MAI and beat noise will turn out to be more serious. To further reduce such adverse impact, the optical hard-limiter is also proposed. Once the channel condition is improved, it will give rise to the more powerful utilization of error correction code. The countermeasures utilized in the proposed system can effectively fight against the MAI and beat noise, and can allow more simultaneous users accommodated in the network. Therefore, it is a promising way for future high-speed optical access networks.
Similar content being viewed by others
References
Bazan, T.M., Harle, D., Andonovic, I.: Mitigation of beat noise in time-wavelength optical-division multiple-access systems. J. Lightw. Technol. 24, 4215–4222 (2006)
Bres, G.S., Huang, Y.K., Rand, D., Glesk, I., Prucnal, P.R., Bazan, T., Michie, C., Harle, D., Andonvoic, I.: On the experimental characterization of beat noise in 2-D time-spreading wavelength-hopping OCDMA systems. IEEE Photon. Technol. Lett. 18, 2314–2316 (2006)
Chuang, M.H., Tseng, H.W., Jau, L.L., Chin, L.P., Lee, Y.H., Jan, Y.G.: Analysis of system Performance for an optical CDMA system implemented with synchronous receiver. Journal of the Chinese Institute of Engineers. 32, 861–866 (2009)
Deng, Y., Kravtsov, K., Fok, M.P., Prucnal, P.R., Sasaki, K., Gupta, G.C., Kobayashi, S.: All-optical asynchronous detection for a compact integrable incoherent optical CDMA system. J. Lightw. Technol. 27, 5370–5375 (2009)
Kwong, W.C., Yang, G.C.: Optical Coding Theory with Prime. CRC Press, Boca Raton (2013)
Lin, Y.T., Yang, G.C., Chang, C.Y., Kwong, W.C.: Design and analysis of asynchronous incoherent optical CDMA systems using a new code-shifting technique. J. Lightw. Technol. 63, 2619–2631 (2015)
Liu, M.Y., Jiang, J.A.: Optical CDMA system using 2-D run-length limited code. Optical Fiber Technology. 16, 309–314 (2010)
Liu, M.Y., Hsu, Y.K., Jiang, J.A.: Utilization of LDPC code and optical hard-limiter in OCDMA communication systems. IEEE Photonics J. 6, 1–11 (2014)
Proakis, G.J.: Digital Communications, 5th edn. McGraw-Hill, New York (2008)
Prucnal, P.R.: Optical Code Division Multiple Access: Fundamentals and Applications. Taylor & Francis, New York (2006)
Ryan, W.E., Lin, S.: Channel Codes. Cambridge University Press, Cambridge (2009)
Wang, X., Kitayama, K.: Analysis of beat noise in coherent and incoherent time-spreading OCDMA. J. Lightw. Technol. 22, 2226–2235 (2004)
Wang, P., Le-Ngoc, T.: 2-D optical CDMA networks using MWPM double hard limiters and modified carrier-hopping prime sequences. J. Lightw. Technol. 23, 2902–2913 (2005)
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Liu, MY., Wang, YC. & Tseng, SM. Utilization of spatial ternary coding scheme in optical CDMA system. Opt Quant Electron 49, 280 (2017). https://doi.org/10.1007/s11082-017-1109-1
Received:
Accepted:
Published:
DOI: https://doi.org/10.1007/s11082-017-1109-1