Performance evaluation of optical code division multiple access systems

Theory and Methods of Signal Processing


In this paper, a new mechanism of faster routing known as message priority and fast routing (MPFR) mechanism in optical code division multiple access (OCDMA) is proposed for optimization of routing performance and to provide effective data transfer. In this proposed work, we have reduced the size of the header bits which are used in MPFR mechanism. In proposed algorithm, with accordance to packet header, the message size is being increased and priority bit is being added which leads to faster data transfer rate and effective data transfer in OCDMA. The transmitter sent the 2D codes to the MPFR which is then added priority bit. If the cover bit in any codes is enabling then the code is considered to be a priority packet and its superior bit then the code is considered to be routing. A modern novel approach which reduces the overhead for fast data transfer is proposed on name of MPFR. Thus the routing can be faster and the codes to be sent are being priorities and send. Thus the OCDMA can now become much faster to be used in critical areas. MPFR protocol, which prioritizes the code with high priority and also it reduces the header processing time of the codes with increase in message size. The prioritization of the code helped to process the particular code first and then rest of the codes and with increase in message size, help to reduce the transmission and processing time of the packet header.


optical code division multiple access strong interference weak interference bit error rate optical encoding multiple access interference 


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. 1.
    C. B. M. Rashidi, S. A. Aljunid, F. Ghani, M. S. Anuar, and H. A. Fadhil, ”Code length optimization using flexible cross correlation (FCC) code in OCDMA networks,” in Proc. IEEE Int. Conf. on Photonics, Pulau Pinang, Malaysia, Oct. 1–3, 2012 (IEEE, New York, 2012).Google Scholar
  2. 2.
    Jun-ichi Kani, “Optical multiplexing technologies for access-area applications,” IEEE J. Sel. Top. Quantum Electron. 12, 661–668 (2006).CrossRefGoogle Scholar
  3. 3.
    J. Singh, “Techniques for reduction of multiple access interference in fiber-optic CDMA systems,” J. Eng. Res. Studies 2(2), 7–10 (2011).Google Scholar
  4. 4.
    R. S. Kaler, A. Sharma, and T. S. Kamal, “Approximate and exact small signal analysis for single mode fiber near zero dispersion wavelengths with higher order dispersion,” Fiber Integr. Opt. 21, 391–415 (2002).CrossRefGoogle Scholar
  5. 5.
    S. Singh, R. S. Kaler, “Gain flattening approach to physical EDFA for 16 × 40 Gb/s NRZ-DPSK WDM optical communication systems,” in Proc. IEEE Conf. Photonic Fibre, 2006 (IEEE, New York, 2006), pp. 37–41.Google Scholar
  6. 6.
    K. Yu, J. Shin, ”Wavelength-Time Spreading Optical CDMA System using Wavelength Multiplexers and Mirrored Fiber Delay Lines,” IEEE Photonics Technol. Lett., 12(9), pp. 23–29, (2000).CrossRefGoogle Scholar
  7. 7.
    D. Singh, ”Performance Evaluation Of Ocdma Communication System Under The Effect Of Jitter,” Int. J. Eng. Res. Appl. 2, 204–209 (2012).Google Scholar

Copyright information

© Pleiades Publishing, Inc. 2014

Authors and Affiliations

  1. 1.Department of Electronics and CommunicationThapar UniversityPunjabIndia

Personalised recommendations