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


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.


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


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Copyright information

© The National Academy of Sciences, India 2014

Authors and Affiliations

  1. 1.Thapar University PatialaPatialaIndia

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