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Theoretical analysis and simulation investigation of designed 1-D and 2-D Modified Walsh Code (MWC) in optical CDMA system

This paper demonstrates the construction of 1-D and 2-D unipolar Modified Walsh Code (MWC) and their performance analysis in Optical CDMA system. The theoretical analysis of 1-D MWC shows the better performance than other few existing OCDMA codes. The comparisons have been represented in this work. The calculated value of BER for 40 users in 1-D and 2-D MWC are found as 10-35 and 10-48 respectively. The simulated results of BER and eye pattern also have been successfully demonstrated for 1-D and 2-D using OptiSystem simulation software.