National Academy Science Letters

, Volume 37, Issue 6, pp 509–512 | Cite as

Analytical Design, Simulation & Evaluation of Proposed OCDMA with Message Priority Fast Routing Codes

Short Communication
  • 56 Downloads

Abstract

In this paper, a new optimized class of optical codes known as Message priority & fast routing (MPFR) is presented. MPFR code is essential in the priority based communication of OCDMA for multiple user environments since these codes control the multiple access interface delay cancellation effectively. In proposed work, codes for MPFR are generated based on simple tridiagonal matrix with less size of the header bit reduction. In the proposed algorithm, multiple user environments have been used in accordance to the packet header. The message size is increased and priority bit is added which leads to faster and effective data transfer in communication. The transmitter use 2D codes, which is further added a priority bit for transmission. Our obtained results revealed that proposed MPFR codes provided better results compared to flexible cross correlation (FCC) codes, zero cross correlation (ZCC) codes and Prime Hop codes (PHC) in term of bit error rate, packet delivery ratio and multiple access interference.

Keywords

Optical code division multiple access FCC codes ZCC codes PHC codes Bit error rate Code length optimization 

References

  1. 1.
    Rashidi CBM (2012) Code length optimization using flexible cross correlation code in ocdma networks. IEEE Int Conf Photonics 13(2):355–359Google Scholar
  2. 2.
    Rashidi CBM, Aljunida SA, Ghania F, Fadhila HA, Anuara MS (2012) New design of flexible cross correlation (FCC) code for SACOCDMA system, In: Malaysian technical universities conference on engineering & technology, 420--427Google Scholar
  3. 3.
    Singh J (2011) Techniques for reduction of multiple access interference in fiber-optic CDMA systems. J Eng Res Stud 2(2):7–10Google Scholar
  4. 4.
    Kaler RS, Sharma A (2002) Approximate signal analysis for single mode fiber near zero dispersion. J Fiber Integr Opt 21(4):391–415CrossRefGoogle Scholar
  5. 5.
    Kani J (2006) Optical multiplexing technologies for access area applications. IEEE J Sel Top Quantum Electron 12(4):661–668CrossRefGoogle Scholar
  6. 6.
    Monga H, Kaler RS (2011) Performance analysis and improvement of spectrally amplitude encoded/decoded OCDMA system. Opt Int J Light Electron Opt 122:2006–2010CrossRefGoogle Scholar
  7. 7.
    Malik C, Tripathi S (2011) Performance evaluation and comparison of optical CDMA networks. IJECT 2(1):55–59Google Scholar
  8. 8.
    Kamath P, Touch JD, Bannister JA (2004) Algorithms for interference sensing in optical CDMA networks. IEEE Int Conf Commun 3:1720–1724Google Scholar

Copyright information

© The National Academy of Sciences, India 2014

Authors and Affiliations

  1. 1.Thapar University PatialaPatialaIndia

Personalised recommendations